Last updated: May 10, 2011. 
Abstract
This guide describes how to install and manage Likewise Open, an open source version of the Likewise agent that connects Linux, Unix, and Mac OS X computers to Microsoft Active Directory and authenticates users with their domain credentials. The guide covers installing the agent, joining an Active Directory domain, logging on with domain credentials, configuring the agent, and troubleshooting.
This guide is supplemented by the Likewise Open community forum, which you can join at http://www.likewise.com/community/.
This Version
Likewise Open 6.0 and 6.1 (in Ubuntu 11.04 or later): http://www.likewise.com/resources/documentation_library/manuals/open/likewise-open-guide.html
Previous Versions
Likewise Open 5.4 (in Ubuntu 10.04): http://www.likewise.com/resources/documentation_library/manuals/open/likewise-open-54-guide.html
Likewise Open 5.2 and 5.3: http://www.likewise.com/resources/documentation_library/manuals/open/likewise-open-53-guide.html
Likewise Open 5.1: http://www.likewise.com/resources/documentation_library/manuals/open/likewise-open-51-guide.html
Likewise Open 5.0: http://www.likewise.com/resources/product_documentation/Likewise-Open-5-Guide.pdf
Likewise Open 4.1: http://www.likewise.com/resources/user_documentation/Likewise-Open-Guide.pdf
Table of Contents
Domainjoin-cli Options, Commands, and ArgumentsTable of Contents
This section skips system requirements and information about pre-configuring clients to cut to the chase: Installing Likewise Open on a Linux computer, connecting it to an Active Directory domain, and logging on with your domain credentials. (Jump to install on Unix or install on Mac OS X.)
Before you deploy Likewise Open in anything other than a test environment, however, you should read the overview of the agent, the chapter on installing the agent, the chapter on joining a domain, and the chapter on configuring the Likewise services.
Go to http://www.likewise.com/download/. After you register, right-click the download link for your platform on the Likewise Open Download page and then save the installer to the desktop of your Linux computer. For versions of Linux running glibc 2.2 or earlier, see Install the Agent on Linux with glibc 2.2 or Earlier.
You install Likewise Open by using a shell script that contains a self-extracting executable -- an SFX installer with a file name that ends in sh. Example: LikewiseIdentityServiceEnterprise-6.0.0.3499-linux-i386-rpm.sh.

As root, make the installer executable: On the desktop, right-click the installer, click Properties, click the Permissions tab, and depending on your operating system select either Allow executing file as program or Execute for Owner, and then click Close.
Keep in mind that the dialog box can vary by platform. The point is that you must set the owner to be the root account and you must set the file to be executable as a program by the root account with read and write permissions.
Tip: You can also make the installer executable from the command line by changing directories to the desktop and then running chmod a+x as root or with sudo:
chmod a+x LikewiseIdentityServiceEnterprise-6.0.0.3499-linux-i386-rpm.sh
On Ubuntu, execute the sudo command before you execute the chmod command:
sudo chmod a+x LikewiseIdentityServiceEnterprise-6.0.0.3499-linux-i386-rpm.sh
As root, run the installer:
./LikewiseIdentityServiceEnterprise-6.0.0.3499-linux-i386-rpm.sh
Follow the instructions in the installer.
Note: On SLES and other systems on which the pager is set to less, you must exit the end user license agreement, or EULA, by typing the following command: q
After the wizard finishes installing Likewise Open, the user interface for joining a domain appears. If it does not appear, see Join Active Directory with the Command Line.
To join a computer to a domain, you must use the root account and you must have the user name and password of an Active Directory account that has privileges to join computers to the domain.
In the Domain box, enter the Fully Qualified Domain Name (FQDN) of your Active Directory domain. Example: CORP.LIKEWISEDEMO.COM

To avoid typing the domain prefix before your user or group name each time you log on, select Enable default user name prefix and enter your domain prefix in the box. Example: CORP
Under Organizational Unit, you can optionally join the computer to an OU by selecting Specific OU Path and then typing a path in the box. The OU path is from the top of the Active Directory domain down to the OU that you want. (See Use Likewise with a Single OU.)
Or, to join the computer to the Computers container, select Default (Computers or previously joined OU).
Click Join Domain.
Enter the user name and password of an Active Directory account that has privileges to join computers to the domain and then click OK.
After you join a domain for the first time, you must restart the computer before you can log on.
To solve problems, see Troubleshooting Domain-Join Problems or run this command at the command line: domainjoin-cli --help
After you join a domain and restart your Linux computer, you can log on interactively or from the text login prompt with your Active Directory credentials in the following form: DOMAIN\username.
If you set a default domain, just use your Active Directory username.
Log out of the current session.
Log on the system console by using the name of your Active Directory user account.
If you did not set a default domain, log on the system console by using an Active Directory user account in the form of DOMAIN\username, where DOMAIN is the Active Directory domain name. Example:
likewisedemo.com\kathy
Important: When you log on from the command line, for example with ssh, you must use a slash to escape the slash character, making the logon form DOMAIN\\username.
To troubleshoot issues, see Solve Logon Problems on Linux.
This section shows you how to quickly modify two common Likewise settings -- the default domain and the shell -- by running the following lwconfig command-line tool as root:
/opt/likewise/bin/lwconfig
To view the settings you can change with lwconfig, execute the following command:
/opt/likewise/bin/lwconfig --list
The syntax to change the value of a setting is as follows, where setting is replaced by the Likewise option that you want to change and value by the new value that you want to set:
/opt/likewise/bin/lwconfig setting value
Here's an example of how to use lwconfig to change the AssumeDefaultDomain setting:
[root@rhel5d bin]# ./lwconfig --detail AssumeDefaultDomainName: AssumeDefaultDomain Description: Apply domain name prefix to account name at logon Type: boolean Current Value: false Accepted Values: true, false Current Value is determined by local policy. [root@rhel5d bin]# ./lwconfig AssumeDefaultDomain true
[root@rhel5d bin]# ./lwconfig --show AssumeDefaultDomain
boolean true local policy
Use the | |
Set the value to | |
Use the |
Here's another example. To set the shell for a domain account, run lwconfig as root with the LoginShellTemplate setting followed by the path and shell that you want:
[root@rhel5d bin]# /opt/likewise/bin/lwconfig LoginShellTemplate /bin/ksh
For more information, see Set the Home Directory and Shell for Domain Users and the section on lwconfig.
You can give your Active Directory account local administrative rights to execute commands with superuser privileges and perform tasks as a superuser.
On Ubuntu, you can simply add your domain account to the admin group in the /etc/group file by entering a line like the following as root:
admin:x:115:LIKEWISEDEMO\kathy
On other Linux systems, you can add an entry for your Active Directory group to your sudoers file -- typically, /etc/sudoers -- by editing the file with the visudo command as root. Editing the sudoers file, however, is recommended only for advanced users, because an improperly configured sudoers file could lock out administrators, mess up the privileges of important accounts, or undermine the system's security.
Example entry of an AD user account:
% LIKEWISEDEMO\\domain^admins ALL=(ALL) ALL
Note: The example assumes that you are a member of the Active Directory domain administrators group.
For information about how to format your sudoers file, see your computer's man page for sudo.
With Likewise Open 6.0 or later, you can seamlessly upgrade from Likewise Open 5, preserving your local configuration and maintaining your Active Directory state. Simply install Likewise Open 6.0 or later while Likewise Open 5.3 or earlier is running and the computer is joined to a domain. It is unnecessary to leave the domain and uninstall the old version before you install the latest verison. After installation, you will still be connected to your domain.
Likewise Open 6 preserves the changes you made to your local Likewise configuration. When you upgrade, a utility in Likewise Open 6 converts the configuration files from versions 5.0, 5.1, 5.2, and 5.3 into registry files and loads the files into the registry. The registry files that capture the old configuration are stored in /tmp/lw-upgrade; the original configuration files in /etc/likewise are removed.
Although the latest Ubuntu release makes the likewise-open package available through the apt-get install command, the Likewise Open 6 installer does not support upgrading from the package. Before you upgrade from the version available through Ubuntu, it is recommended that you leave the domain, uninstall the domain join GUI package (likewise-open-gui), and uninstall the likewise-open package.
Important: If you plan to upgrade from a 4.x or earlier version of Likewise Open to Likewise Open 6.0 or later, please first contact Likewise Technical Support at support@likewise.com. At this time, it is recommended that you do not attempt to upgrade to a 6.x version from a 4.x version without assistance from Likewise support.
Table of Contents
The Likewise agent is installed on a Linux, Unix, or Mac OS X computer to connect it to Microsoft Active Directory and to authenticate users with their domain credentials. The agent integrates with the core operating system to implement the mapping for any application, such as the logon process (/bin/login), that uses the name service (NSS) or pluggable authentication module (PAM). As such, the agent acts as a Kerberos 5 client for authentication and as an LDAP client for authorization. In Likewise Enterprise, the agent also retrieves group policy objects to securely update local configurations, such as the sudo file.
The Likewise agent is also known as the Likewise client and the Likewise identity service.
The Likewise Open agent comprises the following daemons:
|
Daemon |
Description |
Dependencies |
|
|
The Likewise authentication daemon. Lsass stands for Likewise Security and Authentication Subsystem. The service handles authentication, authorization, caching, and idmap lookups. You can check its status or restart it.
|
|
|
|
Detects the optimal domain controller and global catalog and caches them. You can check its status or restart it. |
None |
|
|
The Likewise input-output service. The DCE-RPC client libraries use the Likewise input-output client library, which makes calls to You can check its status or restart it. The input-output service also communicates over SMB with SMB servers. For instructions on how to set up and use the Likewise CIFS/SMB file server, see the Likewise CIFS file server user guide. |
|
|
|
The Likewise DCE/RPC end-point mapper. DCE/RPC stands for Distributed Computing Environment/Remote Procedure Calls. The daemon handles communication between Linux, Unix, and Mac computers and Microsoft Active Directory by mapping data to end points. You can check its status or restart it. |
|
|
|
Collects and processes data for the event log. |
For AD user account requests (but not for root account requests), |
| The daemon for the registry service. | All the Likewise services depend on |
| The Likewise service manager. It manages all the other Likewise daemons and services. | All the Likewise services depend on |
Likewise Enterprise includes all the daemons that are in Likewise Open. The following additional daemons are in Likewise Enterprise to apply group policies, handle smart cards, and monitor security events:
|
Daemon |
Description |
Dependencies |
|
|
The group policy agent. Part of Likewise Enterprise, it runs as a background service to pull group policy objects from Active Directory and apply them to the computer. The daemon uses LDAP to look up information about group policies and uses You can check its status or restart it. |
|
| Event forwarding daemon, part of the Likewise Enterprise data collection service. |
|
| Part of the Likewise data collection service that is included in Likewise Enterprise. |
|
| The daemon for the smart card service. See the chapter on using Likewise with a smart card. |
|
| A daemon that aids the Likewise smart card service by supporting the PKCS#11 API. | None |
The lwiod daemon multiplexes input and output by using SMB1 or SMB2.
The daemon's plugin-based architecture includes several drivers, the most significant of which is coded as rdr -- the redirector.

The redirector multiplexes CIFS/SMB connections to remote systems.
For instance, when two different processes on a local Linux computer need to perform input-output operations on a remote system by using CIFS/SMB, with either the same identity or different identities, the preferred method is to use the APIs in the lwio client library, which routes the calls through the redirector. In this example, the redirector maintains a single connection to the remote system and multiplexes the traffic from each client by using multiplex IDs.
The input-output service plays a key role in the Likewise architecture because Likewise makes heavy use of DCE/RPC, short for Distributed Computing Environment/Remote Procedure Calls. DCE/RPC, in turn, uses SMB: Thus, the DCE-RPC client libraries use the Likewise input-output client library, which in turn makes calls to lwiod with Unix domain sockets.
When you join a domain, for example, Likewise uses DCE-RPC calls to establish the machine password. The Likewise authentication daemon periodically refreshes the machine password by using DCE-RPC calls. Authentication of users and groups in Active Directory takes place with Kerberos, not RPC. (
View a data-flow diagram that shows how systems interact when you join a domain.)
In addition, when a joined computer starts up, the Likewise authentication daemon enumerates Active Directory trusts by using DCE-RPC calls that go through the redirector. With one-way trusts, the authentication daemon uses RPC to look up domain users, groups, and security identifiers. With two-way trusts, lookup takes place through LDAP, not RPC.
Because the authentication daemon registers trusts only when it starts up, you should restart lsassd with the Likewise Service Manager after you modify a trust relationship.
The Likewise group policy agent also uses the input-output client library and the redirector when it copies files from the sysvol share of a domain controller.
To troubleshoot remote procedure calls that go through the input-output service and its redirector, use a Wireshark trace or a TCP dump to capture the network traffic. Wireshark, a free open-source packet analyzer, is recommended.
To troubleshoot connection problems with the redirector, set the log level of lwiod to debug:
/opt/likewise/bin/lwio-set-log-level debug
Likewise uses three standard PAM options – try_first_pass,
use_first_pass, and
use_authtok
-- and adds three non-standard options to the PAM configuration on some systems: unknown_ok, remember_chpass, and set_default_repository. The unknown_ok option allows local users to
continue down the stack (first line succeeds but second
line fails) while blocking domain users who do not meet group membership requirements. On AIX systems, which have both PAM and LAM modules, the remember_chpass prevents the AIX computer from trying to change the password twice and prompting the user twice. On Solaris systems, the set_default_repository option is used to make sure password changes work as expected.
The Likewise Service Manager lets you track and troubleshoot all the Likewise services with a single command-line utility. You can, for example, check the status of the services, view their dependencies, and start or stop them. The service manager is the preferred method for restarting a service because it automatically identifies a service's dependencies and restarts them in the right order. In addition, you can use the service manager to set the logging destination and the log level.
To list status of the services, run the following command with superuser privileges at the command line:
/opt/likewise/bin/lwsm list
Example:
[root@rhel5d bin]# /opt/likewise/bin/lwsm list lwreg running (standalone: 1920) dcerpc running (standalone: 2544) eventlog running (standalone: 2589) lsass running (standalone: 2202) lwio running (standalone: 2191) netlogon running (standalone: 2181) npfs running (io: 2191) rdr running (io: 2191)
After you change a setting in the registry, you must use the service manager to force the service to begin using the new configuration by executing the following command with super-user privileges. This example refreshes the lsass service:
/opt/likewise/bin/lwsm refresh lsass
Configuration information for the daemons is stored in the Likewise registry, which you can access and modify by using the registry shell or by executing registry commands at the command line. The registry shell is at /opt/likewise/bin/lwregshell. For more information, see Configuring the Likewise Services with the Registry.
The agent includes a number of libraries in /opt/likewise/lib.
The agent uses the following ports for outbound traffic.
View a data-flow diagram that shows how systems interact when you join a domain.
To maintain the current state and to improve performance, the Likewise authentication service (lsass) caches information about users and groups in memory. You can, however, change the cache to store the information in a SQLite database; for more information, see the chapter on configuring Likewise with the registry.
The Likewise site affinity service, netlogon, caches information about the optimal domain controller and global catalog in the Likewise registry.
The following files are in /var/lib/likewise/db:
|
File |
Description |
registry.db | The SQLite 3.0 database in which the Likewise registry service, lwreg, stores data. |
|
sam.db |
Repository managed by the local authentication provider to store information about local users and groups. |
|
lwi_events.db |
The database in which the event logging service, eventlog, records events. |
|
lsass-adcache.db.fqdn |
Cache managed by the Active Directory authentication provider to store user and group information. The file is in |
Since the default UIDs that Likewise generates are large, the entries made by the operating system in the lastlog file when AD users log in make the file appear to increase to a large size. This is normal and should not cause concern. The lastlog file (typically /var/log/lastlog) is a sparse file that uses the UID and GID of the users as disk addresses to store the last login information. Because it is a sparse file, the actual amount of storage used by it is minimal.
With Likewise Open, you can manage the following settings for your cache by editing the Likewise registry. See Cache Settings in the lsass Branch.
The Cache Type
The Size of the Memory Cache
The Duration of Cached Credentials
The NSS Membership and NSS Cache Settings
The Interval for Caching an Unknown Domain
With Likewise Enterprise, you can manage the settings with group policies; see the Group Policy Adminstration Guide.
Additional information about a computer's Active Directory domain name, machine account, site affinity, domain controllers, forest, the computer's join state, and so forth is stored in the Likewise registry. Here's an example of the kind of information that is stored under the Pstore key and the netlogon key:
[HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory\DomainJoin\LIKEWISEDEMO.COM\Pstore] "ClientModifyTimestamp"=dword:4b86d9c6 "CreationTimestamp"=dword:4b86d9c6 "DomainDnsName"="LIKEWISEDEMO.COM" "DomainName"="LIKEWISEDEMO" "DomainSID"="S-1-5-21-3190566242-1409930201-3490955248" "HostDnsDomain"="likewisedemo.com" "HostName"="RHEL5D" "MachineAccount"="RHEL5D$" "SchannelType"=dword:00000002 [HKEY_THIS_MACHINE\Services\netlogon\cachedb\likewisedemo.com-0] "DcInfo-ClientSiteName"="Default-First-Site-Name" "DcInfo-DCSiteName"="Default-First-Site-Name" "DcInfo-DnsForestName"="likewisedemo.com" "DcInfo-DomainControllerAddress"="192.168.92.20" "DcInfo-DomainControllerAddressType"=dword:00000017 "DcInfo-DomainControllerName"="w2k3-r2.likewisedemo.com" "DcInfo-DomainGUID"=hex:71,c1,9e,b5,18,35,f3,45,ba,15,05,95,fb,5b,62,e3 "DcInfo-Flags"=dword:000003fd "DcInfo-FullyQualifiedDomainName"="likewisedemo.com" "DcInfo-LMToken"=dword:0000ffff "DcInfo-NetBIOSDomainName"="LIKEWISEDEMO" "DcInfo-NetBIOSHostName"="W2K3-R2" "DcInfo-NTToken"=dword:0000ffff "DcInfo-PingTime"=dword:00000006 "DcInfo-UserName"="" "DcInfo-Version"=dword:00000005 "DnsDomainName"="likewisedemo.com" "IsBackoffToWritableDc"=dword:00000000 "LastDiscovered"=hex:c5,d9,86,4b,00,00,00,00 "LastPinged"=hex:1b,fe,86,4b,00,00,00,00 "QueryType"=dword:00000000 "SiteName"=""
For the Likewise agent to communicate over Kerberos with the domain controller, the clock of the client must be within the domain controller's maximum clock skew, which is 300 seconds, or 5 minutes, by default. (For more information, see http://web.mit.edu/kerberos/krb5-1.4/krb5-1.4.2/doc/krb5-admin/Clock-Skew.html.)
The clock skew tolerance is a server-side setting. When a client communicates with a domain controller, it is the domain controller's Kerberos key distribution center that determines the maximum clock skew. Since changing the maximum clock skew in a client's krb5.conf file does not affect the clock skew tolerance of the domain controller, the change will not allow a client outside the domain controller's tolerance to communicate with it.
The clock skew value that is set in the /etc/likewise/krb5.conf file of Linux, Unix, and Mac OS X computers is useful only when the computer is functioning as a server for other clients. In such cases, you can use a Likewise Enterprise group policy to change the maximum tolerance; for more information, see Set the Maximum Tolerance for Kerberos Clock Skew in the Likewise Group Policy Administration Guide.
The domain controller uses the clock skew tolerance to prevent replay attacks by keeping track of every authentication request within the maximum clock skew. Authentication requests outside the maximum clock skew are discarded. When the server receives an authentication request within the clock skew, it checks the replay cache to make sure the request is not a replay attack.
If you set the system time on your computer with a Network Time Protocol (NTP) server, the time value of the NTP server and the time value of the domain controller could exceed the maximum skew. As a result, you will be unable to log on your computer.
If you use an NTP server with a cron job, there will be two processes trying to synchronize the computer's time -- causing a conflict that will change the computer's clock back and forth between the time of the two sources.
Likewise recommends that you configure your domain controller to get its time from the NTP server and configure the domain controller's clients to get their time from the domain controller.
The Likewise authentication daemon -- lsassd -- manages site affinity for domain controllers and global catalogs and caches the information with netlogond. When a computer is joined to Active Directory, netlogond determines the optimum domain controller and caches the information. If the primary domain controller goes down, lassd automatically detects the failure and switches to another domain controller and another global catalog within a minute.
However, if another global catalog is unavailable within the forest, the Likewise agent will be unable to find the Unix and Linux information of users and groups. The Likewise agent must have access to the global catalog to function. Therefore, it is a recommended that each forest has redundant domain controllers and redundant global catalogs.
In Likewise Open, a UID and GID are generated by hashing the user or group's security identifier, or SID, from Active Directory. With Likewise Open, you do not need to make any changes to Active Directory. A UID and GID stays the same across host machines. With Likewise Open, you cannot set UIDs and GIDs for Linux and Unix in Active Directory; using AD to set and manage UIDs and GIDs is a feature of Likewise Enterprise or the Likewise UID-GID management tool.
If your Active Directory relative identifiers, or RIDs, are a number greater than 524,287, the Likewise Open algorithm that generates UIDs and GIDs can result in UID-GID collisions among users and groups. In such cases, it is recommended that you use Likewise Enterprise or the Likewise UID-GID management tool.
The Likewise Open algorithm is the same in 4.1 and 5.0, and if you are running 4.1 on one computer and 5.0 or later on another, each user and group should have the same UID and GID on both machines.
Note: If you have UIDs and GIDs defined in Active Directory, Likewise Open will not use those UIDs and GIDs.
In Likewise Enterprise, you can specify the UIDs and GIDs that you want, including setting multiple UID and GID values for a given user based on OU membership by using Likewise cells. (Likewise cells, available only in Likewise Enterprise, provide a method for mapping Active Directory users and groups to UIDs and GIDs.) You can also set Likewise Enterprise to automatically generate UID and GID values sequentially.
Both Likewise Open and Likewise Enterprise cache credentials so users can log on when the computer is disconnected from the network or Active Directory is unavailable.
The Likewise agent supports the following Active Directory trusts:
|
Trust Type |
Transitivity |
Direction |
Likewise Default Cell Support |
Likewise Non-Default Cell Support (Named Cells) |
|
Parent and child |
Transitive |
Two-way |
Yes |
Yes |
|
External |
Nontransitive |
One-way |
No |
Yes |
|
External |
Nontransitive |
Two-way |
No |
Yes |
|
Forest |
Transitive |
One-way |
No |
Yes |
|
Forest |
Transitive |
Two-way |
Yes: Must enable default cell in both forests. |
Yes |
There is information on the types of trusts at http://technet.microsoft.com/en-us/library/cc775736(WS.10).aspx.
The following list contains general information about working with trusts.
You must place the user or group that you want to give access to the trust in a cell other than the default cell.
In a two-way forest or parent-child trust, Likewise merges the default cells. When merged, users in one domain can log on computers in another domain, and vice-versa.
To put a user in a child domain but not the parent domain, you must put the user in a non-default cell, which is a cell associated with an organizational unit.
If there is a UID conflict across two domains, one domain will be dropped.
In a cross-forest transitive one- or two-way trust, the root of the trusted forest must have a default cell.
In a one-way trust in which Forest A trusts Forest B, a computer in Forest A cannot get group information from Forest B, because Forest B does not trust Forest A. The computer in Forest A can obtain group information if the user logs on with a password for a domain user, but not if the user logs on with Kerberos single sign-on credentials. Only the primary group information, not the secondary group information, is obtained.
To support a 1-way trust without duplicating user accounts, you must use a cell associated with an OU, not a default cell. If Domain A trusts Domain B (but not the reverse) and if Domain B contains all the account information in cells associated with OUs, then when a user from Domain B logs on a machine joined to Domain A, Domain B will authenticate the user and authorize access to the machine in Domain A.
In such a scenario, you should also add a domain user from the trusted domain to an administrative group in the trusting domain so you can manage the trusting domain with the appropriate level of read access to trusted user and group information. However, before you add the domain user from the trusted domain to the trusting domain, you must first add to the trusting domain a group that includes the user because Unix and Linux computers require membership in at least one group and Active Directory does not enumerate a user's membership in foreign groups.
If you have a network topology in which the "front" domain trusts the "back" domain, and you join a machine to the front domain using a back domain administrator, as in the following example, the attempt to join the domain will fail: domainjoin-cli join front.likewise.com back\\administrator password. However, the attempt to join the domain will succeed if you use the following nomenclature:
domainjoin-cli join front.likewise.com administrator@BACK.likewise.COM password
With Likewise Enterprise, aliased user names are supported in the default cell and in named cells.
In Likewise Enterprise, a cell contains Unix settings, such as a UID and a GID, for an Active Directory user. When an AD user logs on a Likewise client, Likewise Enterprise searches Active Directory for the user's cell information -- and must find it to operate properly. Thus, your AD topology and your trust relationships may dictate where to locate a cell in Active Directory so that your Likewise clients can access their Unix settings.
With a default cell, Likewise searches for a user or group's attributes in the default cell of the domain where the user or group resides. In a multi-domain topology, a default cell must exist in the domain where user and group objects reside in addition to the default cell that exists in the domain to which Unix, Linux, and Mac computers are joined. In a multi-domain topology, then, be sure to create a default cell in each domain.
Ideally, Unix information is stored on the user object in default cell schema mode. If the client computer does not have the access rights to read and write the information to the user object, as in an external one-way trust, the Unix information cannot be stored on the user object. It can, however, be stored locally in a named cell, that is, a cell associated with an organizational unit.
Since a named cell can be linked to the default cell, you can store Unix information on the user object in default cell schema mode when possible, and otherwise in a named cell that represents the external user. For information about cells, see the chapter on planning your Likewise Enterprise installation and deployment.
Likewise includes a tool to install the files necessary to use Samba with Likewise. Located in /opt/likewise/bin, the tool is named samba-interop-install. The Likewise Samba Guide describes how to use the tool to integrate Samba 3.0.25, 3.2.X, or 3.5.X with Likewise Enterprise 6 or Likewise Open 6.
Likewise Open and Likewise Enterprise run on a broad range of Unix, Mac OS X, and Linux platforms. Likewise frequently adds new vendors and distributions to the list of supported platforms.
Table of Contents
Before you attempt to join an Active Directory domain, make sure the /etc/nsswitch.conf file contains the following line:
hosts: files dns
The hosts line can contain additional information, but it must include the dns entry, and it is recommended that the dns entry appear after the files entry.
Computers running Solaris, in particular, may not contain this line in nsswitch.conf until you add it.
When you use Likewise with Multicast DNS 4 (mDNS4) and have a domain in your environment that ends in .local, you must place the dns entry before the mdns4_minimal entry and before the mdns4 entry:
hosts: files dns mdns4_minimal [NOTFOUND=return] mdns4
The default setting for many Linux systems is to list the mdns4 entries before the dns entry -- a configuration that leaves Likewise unable to find the domain.
Important: For Likewise to process changes to your nsswitch.conf file, you must restart the Likewise input-output service (lwiod) and the authentication service (lsassd). Running the following command as root restarts both services:
/opt/likewise/bin/lwsm restart lwio
For Likewise to work correctly, the nsswitch.conf file must be readable by user, group, and world.
For more information on configuring nsswitch, see the man page for nsswitch.conf.
Before you attempt to join an Active Directory domain, make sure that /etc/resolv.conf on your Linux, Unix, or Mac client includes a DNS server that can resolve SRV records for your domain.
Example:
[root@rhel5d Desktop]# cat /etc/resolv.conf
search likewisedemo.com nameserver 192.168.100.132
For more information on resolv.conf, see your operating system's man page.
The Likewise agent requires several firewall ports to be open for outbound traffic. For a list of the required ports, see Make Sure Outbound Ports Are Open.
On AIX 5.2 and 5.3, you may need to extend the size of certain partitions to complete the installation successfully.
To do so, use IBM's chfs command to change the partition sizes -- for example:
# chfs -a size=+200M /opt
This command increases the size of the opt partition by 200 megabytes, which should be sufficient for a successful installation.
By default, IBM AIX is not configured to support long user and group names, which might present a conflict when you try to log on with a long Active Directory username. On AIX 5.3 and AIX 6.1, the symptom is that group names, when enumerated through the groups command, are truncated.
To increase the max username length on AIX 5.3, use the following syntax:
# chdev - l sys0 -a max_logname=MaxUserNameLength+1
Example:
# chdev - l sys0 -a max_logname=255
This command allocates 254 characters for the user and 1 for the terminating null.
The safest value that you can set max_logname to is 255.
You must reboot for the changes to take effect:
# shutdown - Fr
Note: AIX 5.2 does not support increasing the maximum user name length.
Members of the Likewise support staff might use a shell script to check the health of a Linux or Unix computer on which you plan to install the Likewise agent. The script helps identify potential system configuration issues before you install the agent and attempt to join a Linux or Unix computer to Active Directory.
With Likewise Open, the script is unavailable, but you can manually check your computer against the list in the table below.
The name of the script is healthchk.sh. To execute it, copy the script to the Unix or Linux computer that you want to check, and then execute the following command from the shell prompt: likewise-health-check.sh
The script outputs the results of its scan to /tmp/healthchk.out.
The following table lists each item the script checks, describes the item, and suggests action to correct the issue.
|
Item Checked |
Description |
Corrective Action |
|
Type of operating system |
The operating system must be one of the platforms that Likewise supports. Supported platforms are listed later in this guide. |
Install the agent on a computer that is running a supported operating system. |
|
Hostname |
Informational. |
Not applicable. |
|
Processor type |
The processor type must be supported by the Likewise Agent. See the list of supported platforms later in this guide. |
Install the agent on a computer with a supported processor. |
|
Disk usage |
Checks the disk space available to |
Increase the amount of disk space available to |
|
Contents of |
Displays the operating system and version number to ensure that they are supported by Likewise. See the list of supported platforms later in this guide. |
Install the agent on a computer that is running a supported operating system and version. |
|
Network interface and its status |
Displays network interfaces and IP addresses to ensure that the system has network access. |
Configure the computer so that it has network access and can communicate with the domain controller. |
|
Contents of the IP routing table |
To determine whether a single default gateway is defined for the computer. |
If the computer does not use a single default gateway, you must define a route to a single default gateway. For example, you can run the On Solaris, you may need to create or edit On Linux, you can set the default gateway by running the network utility for your distribution. |
|
Connectivity to the default gateway |
Pings the default gateway to ensure that the computer can connect to it. A connection to the default gateway is required. |
Configure the computer and the network so that the computer can connect to the default gateway. |
|
Contents of |
Displays information about the nsswitch configuration. |
The
Computers running Solaris, in particular, may not contain this line in |
|
FQDN |
Determines the fully qualified domain name of the computer to ensure that it is set properly. |
Make sure the computer's FQDN is correct in You can determine the fully qualified domain name of a computer running Linux, Unix, or Mac OS X by executing the following command:
On HP-UX: On Solaris:
This command prompts the computer to look up the primary host entry for its hostname. In most cases, it looks for its hostname in
If, however, the entry in
If the host entry cannot be found in |
|
IP address of local NIC |
Determines whether the IP address of the local network card matches the IP address returned by DNS for the computer. The IP address of the local NIC must match the IP address for the computer in DNS. |
Either update DNS or change the local IP address so that the IP address of the local network card matches the IP address returned by DNS for the computer. |
|
Contents of |
Returns the address for the The address of The SRV record is a DNS resource record that is used to identify computers that host specific services. SRV resource records are used to locate domain controllers for Active Directory. |
Compare against the results of the items checked next. |
|
DNS query results for system (hostname and IP) |
The IP address for the host name from DNS must match the IP address of the computer's local NIC. |
Either update DNS or change the local IP address so that the IP address of the local network card matches the IP address returned by DNS for the computer. |
|
DNS name resolution and connectivity to specified domain controller |
Pings the domain name to get the IP address. |
Correct |
|
SRV records from DNS |
Performs a DNS lookup for the SRV records to get the IP addresses for the domain controller. |
Correct |
|
Connectivity to the Internet |
Informational. Although connectivity to the Internet is optional, it makes it easier to download the installer for the agent installer. |
Not applicable. |
|
Location and version information for sudo, openssl, bash, rpm, and ssh |
Checks whether required utilities are installed and are in expected locations.
|
Likewise requires the following utilities: ssh and openssl. The other utilities are optional but may be useful. |
|
Selected firewall settings (Kerberos, NetBIOS, and LDAP) |
Tests whether the computer can connect to ports on the domain controller to make sure that a firewall will not block the computer's attempt to join the domain. |
Reconfigure the firewall to allow the computer to access the domain controller. |
|
Listing of files in |
Lists other software that requires PAM. |
Not applicable. Save this information for Likewise support staff in case they need to troubleshoot the installation. |
|
Contents of selected pam files (pam.conf, common-auth, system-auth) |
May reveal installation of other applications that are incompatible with the installer. |
Not applicable. Save this information for Likewise support staff in case they need to troubleshoot the installation. |
|
Contents of |
Shows Kerberos 5 configuration. |
Not applicable. Save this information for Likewise support staff in case they need to troubleshoot the installation. |
|
DHCP |
Checks whether DHCP is in use. When the Likewise Agent joins the computer to the domain, the agent restarts the computer. DHCP can then change the contents of |
Set the computer to a static IP address or configure DHCP so that it does not update such files as |
|
ISA type |
Returns 32-bit or 64-bit information. |
Use the installer for your ISA type. |
|
Read-only filespaces |
Checks whether |
Make sure that |
|
AIX TL levels |
Determines the AIX TL level. |
Not all TL levels are supported. For AIX, check with Likewise support to make sure that Likewise is compatible with the TL level you are using. |
Table of Contents
You must install the Likewise agent -- the identity service that authenticates users -- on each Linux, Unix, or Mac OS X computer that you want to connect to Active Directory. To obtain the installer or to view a list of supported platforms, see www.likewise.com. The Likewise Open installation package can be downloaded for free at http://www.likewise.com/products/likewise_open/. If you are using Likewise Enterprise, make sure you install the Likewise Enterprise version of the agent.
Important: Before you install the agent, it is recommended that you upgrade your system with the latest security patches. Patch requirements for Unix systems are listed below.
The procedure for installing the Likewise Open agent or the Likewise Enterprise agent depends on the operating system of your target computer or virtual machine. Each procedure is documented in a separate section of this chapter.
|
Operating System |
Procedure by Title |
|
Linux platforms running kernel release number 2.6 or later are supported by Likewise 6.1 or later. Linux platforms runing kernel release number 2.4 or later are supported by Likewise 6.0 or earlier. | |
|
Unix: Sun Solaris, HP-UX, IBM AIX | |
VMware ESX 3.0 and 3.5 (hypervisor) | |
|
Mac OS X 10.4 or later, including 10.5 and 10.6 |
You also have the option of installing the agent in unattended mode; see Install the Agent on Linux in Unattended or Text Mode and Install the Agent on a Mac in Unattended Mode.
To determine the release number of the kernel on your Linux machine, run the following command:
uname -r
For the Linux machine to be supported by Likewise, the kernel release number must be 2.6 or later.
For an overview of commands such as rpm and dpkg that can help you manage Likewise on Linux and Unix platforms, see Package Management Commands.
This section lists requirements for installing and running the Likewise agent. Requirements for the Likewise Management Console, which is part of Likewise Enterprise and the UID-GID module, are detailed in the chapter on installing the console. Likewise Open does not include the Likewise Management Console.
Before you install the Likewise agent, make sure that the following environmental variables are not set: LD_LIBRARY_PATH, LIBPATH, SHLIB_PATH, LD_PRELOAD. Setting any of these environmental variables violates best practices for managing Unix and Linux computers because it causes Likewise to use non-Likewise libraries for its services. For more information on best practices, see http://linuxmafia.com/faq/Admin/ld-lib-path.html. Likewise does not support installations that use these environmental variables. If joining the domain fails with an error message that one of these environmental variables is set, stop all the Likewise daemons, clear the environmental variable, make sure it is not automatically set when the computer restarts, and then try to join the domain again.
If you must set LD_LIBRARY_PATH, LIBPATH, or SHLIB_PATH for another program, put the Likewise library path (/opt/likewise/lib or /opt/likewise/lib64) before any other path -- but keep in mind that doing so may result in side effects for your other programs, as they will now use Likewise libraries for their services.
It is recommended that you apply the latest patches for your operating system before you install Likewise. Known patch requirements are listed below.
All Solaris versions require the md5sum utility, which can be found on the companion CD.
Sun Solaris 10 requires update 5 or later. The Solaris 10 05/08 (or later) patch bundle is available at http://sunsolve.sun.com/. Solaris 10_x86 requires the patch for nscd, either patch ID number 138047-02 or the patch that supercedes it, number 138264-02. This patch available for SPARC as patch 138046.
Solaris 8 Sparc should be fully patched according to Sun's recommendations. Likewise depends on the latest patch for libuuid. On Sparc systems, the patch for libuuid is 115831. Sun patch 110934-28 for Solaris 5.8 is also required for Solaris 8.
Solaris 8 Intel systems also require the latest patch for libuuid: 115832-01. Sun patches 110403-06 and 110935-26 are also required. Patch 110403-06 must be installed before you install patch 110935-26.
Solaris 9 requires Sun patch 113713-28 for Solaris 5.9.
OpenSolaris is compatible with Likewise without any patches.
Secure Shell: For all HP-UX platforms, it is recommended that a recent version of HP's Secure Shell be installed. Likewise recommends that you use HP-UX Secure Shell A.05.00.014 or later.
Sudo: By default, the versions of sudo available from the HP-UX Porting Center do not include the Pluggable Authentication Module, or PAM, which Likewise requires to allow domain users to execute sudo commands with super-user credentials. It is recommended that you download sudo from the HP-UX Porting Center and make sure that you use the with-pam configuration option when you build it.
HP-UX 11iv1 requires the following patches: PHCO_36229, PHSS_35381, PHKL_34805, PHCO_31923, PHCO_31903, and PHKL_29243. Although these patches may be superceded by subsequent patches, these patches represent the minimum patch level for proper operation.
Kerberos client libraries: For single sign-on with HP-UX 11.11 and 11.23, you must download and install the latest KRB5-Client libraries from the HP Software Depot. (By default, HP-UX 11.31 includes the libraries.)
On AIX computers, PAM must be enabled. LAM is supported only on AIX 5.x. PAM must be used exclusively on AIX 6.x.
To properly process logon events with Likewise, your SSH server or client must support the UsePam yes option. For single sign-on, both the SSH server and the SSH client must support GSSAPI authentication.
Telnet, rsh, rcp, rlogin, and other programs that uses PAM for processing authentication requests are compatible with Likewise.
Each Unix, Linux, or Mac computer must have fully routed network connectivity to all the domain controllers that service the computer's Active Directory site. Each computer must be able to resolve A, PTR, and SRV records for the Active Directory domain, including at least the following:
A domain.tld
SRV _kerberos._tcp.domain.tld
SRV _ldap._tcp.domain.tld
SRV _kerberos._udp.sitename.Sites._msdcs.domain.tld
A domaincontroller.domain.tld
In addition, several ports must be open; see Make Sure Outbound Ports Are Open.
The Likewise agent requires 100 MB of disk space in the /opt mount point. The agent also creates configuration files in /etc/likewise and offline logon information in /var/lib/likewise. In addition, the Likewise Enterprise agent caches group policy objects in /var/cache/likewise.
The agent consists of several daemons that typically use between 9 MB and 14 MB of RAM. Memory utilization of the authentication daemon on a 300-user mail server is typically 7 MB; the other daemons require between 500 KB and 2 MB each. CPU utilization on a 2.0 gigahertz single-core processor under heavy load with authentication requests is about 2 percent. For a description of the Likewise daemons, see About the Likewise Agent.
For the Likewise agent to communicate over Kerberos with the domain controller's Kerberos key distribution center, the clock of the client must be within the domain controller's maximum clock skew, which is 300 seconds, or 5 minutes, by default. For more information on time synchronization, see About the Likewise Agent.
You install the Likewise Enterprise agent by using a shell script that contains a self-extracting executable. The file name of the SFX installer ends in sh. Example: LikewiseEnterprise-6.1.0.3499-linux-i386-rpm.sh.
The examples shown are for Linux RPM-based platforms. For other Linux and Unix platforms -- such as Debian, HP-UX, AIX, and Solaris -- simply substitute the right installer. The installer's name includes the product name, version and build numbers, operating system, computer type, and platform type.
Perform the following procedure with the root account. To view information about the installer or to view a list of command-line options, run the following command:
./LikewiseEnterprise-6.1.0.3499-linux-i386-rpm.sh --help
After the wizard finishes, the user interface for joining a domain appears. To suppress it, you can run the installer with its --dont-join argument.
Download or copy the shell script to your Linux or Unix computer's desktop.
Important: If you FTP the file to the desktop of the target Linux or Unix computer, you must select binary, or BIN, for the transfer. Most FTP clients default to AUTO or ASCII, but the installer includes some binary code that becomes corrupted in AUTO or ASCII mode.
Change directories to the desktop.
As root, change the mode of the installer to executable.
chmod a+x LikewiseEnterprise-6.1.0.3499-linux-i386-rpm.sh
On Ubuntu, execute the sudo command before you execute the chmod command:
sudo chmod a+x LikewiseEnterprise-6.1.0.3499-linux-i386-rpm.sh
As root, run the installer:
./LikewiseEnterprise-6.1.0.3499-linux-i386-rpm.sh
Follow the instructions in the installer.
Note: On SLES and other systems on which the pager is set to less, you must exit the end user license agreement, or EULA, by typing the following command: q
You can install the agent in unattended mode by using the install command:
./LikewiseEnterprise-6.1.0.67-linux-i386-rpm.sh install
You install the Likewise Open agent or the Likewise Enterprise agent on Sun Solaris, HP-UX, and IBM AIX by using a shell script that contains a self-extracting executable -- an SFX installer with a file name that ends in sh. Example: LikewiseEnterprise-6.1.0.70-solaris-sparc-pkg.sh.
The examples shown below are for Solaris Sparc systems. For other Unix platforms, simply substitute the right installer. The installer's name includes the product name, version and build numbers, operating system, computer type, and platform type.
Note: The name of a Unix installer for Likewise Enterprise on installation media might be truncated to an eight-character file name with an extension. For example, l3499sus.sh is the truncated version of LikewiseEnterprise-6.1.0.3499-solaris-sparc-pkg.sh.
Perform the following procedure with the root account.
Download or copy the installer to the Unix computer's desktop.
Change directories to the desktop.
As root, change the mode of the installer to executable:
chmod a+x LikewiseEnterprise-6.1.0.70-solaris-sparc-pkg.sh
Tip: To view a list of command-line options, run the following command:
./LikewiseEnterprise-6.1.0.70-solaris-sparc-pkg.sh --help
As root, run the installer:
./LikewiseEnterprise-6.1.0.70-solaris-sparc-pkg.sh
Follow the instructions in the installer.
To install the Likewise agent on a computer running Mac OS X, you must have administrative privileges on the Mac. Likewise supports Mac OS X 10.4 or later.
Obtain the Likewise agent installation package for your Mac from Likewise Software and place it on your desktop.
Important: On an Intel-based Mac, install the i386 version of the .dmg package. On a Mac that does not have an Intel chip, install the powerpc version of the .dmg package. On Mac OS X 10.6 (Snow Leopard), you must use the 10.6 universal installation package.
Log on the Mac with a local account.
On the Apple menu
, click System Preferences.
Under Internet & Network, click Sharing, and then select the Remote Login check box. Turning on Remote Login lets you access the Mac with SSH after you install Likewise.
On the Mac computer, go to the Desktop and double-click the Likewise .dmg file.
In the Finder window that appears, double-click the Likewise .mpkg file.
Follow the instructions in the installation wizard.
When the wizard finishes installing the package, you are ready to join the Mac computer to an Active Directory domain.
The Likewise command-line tools can remotely deploy the shell version of the Likewise agent to multiple Mac OS X computers, and you can automate the installation of the agent by using the installation command in unattended mode.
The commands in this procedure require administrative privileges.
Important: For Intel-based Macs, use the i386 version of the .dmg installer; for example: LikewiseEnterprise-6.1.0.3628-i386.dmg. For Macs that do not have Intel chips, use the powerpc version of the .dmg installer; for example: LikewiseEnterprise-6.1.0.3628-powerpc.dmg
The procedure below assumes you are installing the agent on an i386 Mac; if you are installing on a powerpc, replace the i386 installer with the powerpc installer.
Use SSH to connect to the target Mac OS X computer and then use SCP to copy the .dmg installation file to the desktop of the Mac or to a location that can be accessed remotely. The rest of this procedure assumes that you copied the installation file to the desktop.
On the target Mac, open Terminal and then use the hdiutil mount command to mount the .dmg file under Volumes:
/usr/bin/hdiutil mount Desktop/LikewiseEnterprise-6.1.0.3628-i386.dmg
Execute the following command to open the .mpkg volume:
/usr/bin/open Volumes/LikewiseEnterprise-6.1.0.3628-i386
Execute the following command to install the agent:
sudo installer -pkg /Volumes/LikewiseEnterprise-6.1.0.3628-i386/LikewiseEnterprise-6.1.0.3628-i386.mpkg -target LocalSystem
Note: For more information about the installer command, in Terminal execute the following command:
man installer
To join the domain, execute the following command in the Terminal, replacing domainName with the FQDN of the domain that you want to join and joinAccount with the user name of an account that has privileges to join computers to the domain:
sudo /opt/likewise/bin/domainjoin-cli join domainName joinAccount
Example: sudo /opt/likewise/bin/domainjoin-cli join likewisedemo.com Administrator
Terminal prompts you for two passwords: The first is for a user account on the Mac that has admin privileges; the second is for the user account in Active Directory that you specified in the join command.
Note: You can also add the password for joining the domain to the command, but Likewise recommends against this approach because another user could view and intercept the full command that you are running, including the password:
sudo /opt/likewise/bin/domainjoin-cli join domainName joinAccount joinPassword
Example: sudo /opt/likewise/bin/domainjoin-cli join likewisedemo.com Administrator YourPasswordHere
Solaris Zones are a virtualization technology created by Sun Microsystems to consolidate servers. Primarily used to isolate an application, Solaris Zones act as isolated virtual servers running on a single operating system, making each application in a collection of applications seem as though it is running on its own server. A Solaris Container combines system resource controls with the virtual isolation provided by zones.
Every zone server contains a global zone that retains visibility and control in any installed non-global zones. By default, the non-global zones share certain directories, including /usr, which are mounted read-only. The shared directories are writable only for the global zone.
By default, installing Likewise in the global zone results in it being installed in all the non-global zones. You can, however, control the target of the installation by using the following options of the SFX installer:
./LikewiseEnterprise-6.1.0.97-solaris-i386-pkg.sh --help ... --all-zones (Solaris) Install to all zones (default) --current-zone (Solaris) Install only to current zone
After a new child zone is installed, booted, and configured, you must run the following command as root to complete the installation:
/opt/likewise/bin/postinstall.sh
You cannot join zones to Active Directory as a group. Each zone, including the global zone, must be joined to the domain independently of the other zones.
There are some caveats when using Likewise with Solaris Zones:
1. When you join a non-global zone to AD, you will receive an error as Likewise attempts to synchronize the Solaris clock with AD. The error occurs because the root user of the non-global zone does not have root access to the underlying global system and thus cannot set the system clock. If the clocks are within the 5-minute clock skew permitted by Kerberos, the error will not be an issue. Otherwise, you can resolve the issue by manually setting the clock in the global zone to match AD or by joining the global zone to AD before joining the non-global zone.
2. Some group policies may log PAM errors in the non-global zones even though they function as expected. The cron group policy is one example:
Wed Nov 7 16:26:02 PST 2009 Running Cronjob 1 (sh) Nov 7 16:26:01 zone01 last message repeated 1 time Nov 7 16:27:00 zone01 cron[19781]: pam_lsass(cron): request failed
Depending on the group policy, these errors may result from file access permissions, attempts to write to read-only directories, or both.
3. By default, Solaris displays auth.notice syslog messages on the system console. Some versions of Likewise generate significant authentication traffic on this facility-priority level, which may lead to an undesirable amount of chatter on the console or clutter on the screen.
To redirect the traffic to a file instead of displaying it on the console, edit your /etc/syslog.conf file as follows:
Change this:
*.err;kern.notice;auth.notice /dev/sysmsg
To this:
*.err;kern.notice /dev/sysmsg
auth.notice /var/adm/authlog
Important: Make sure that you use tabs, not spaces, to separate the facility.priority information (on the left) from the action field (on the right). Using spaces will cue syslog to ignore the entire line.
Before you upgrade your operating system, you must leave the domain, uninstall the domain join GUI, and uninstall the agent. Then, make sure you are using the correct agent for the new version of your operating system, install it, and rejoin the domain.
If, for example, you plan to upgrade your operating system from Mac OS X 10.5 (Leopard) to Mac OS X 10.6 (Snow Leopard), you must first leave the domain and uninstall the current agent. Then, after upgrading your operating system, install the correct agent for the new version of the operating system and join the domain again. See Uninstall the Agent on a Mac.
Table of Contents
Domainjoin-cli Options, Commands, and ArgumentsWhen Likewise joins a computer to an Active Directory domain, it uses the hostname of the computer to create the name of the computer object in Active Directory. From the hostname, the Likewise domain join tool attempts to derive a fully qualified domain name. By default, the Likewise domain join tool creates the Linux and Unix machine accounts in the default Computers container in Active Directory.
You can, however, choose to pre-create machine accounts in Active Directory before you join your computers to the domain. When you join a computer to a domain, Likewise associates the computer with the pre-existing machine account when Likewise can find it. To locate the machine account, Likewise first looks for a machine account with a DNS hostname that matches the hostname of the computer. If the DNS hostname is not set, Likewise then looks for the name of a machine account that matches the computer's hostname, but only when the computer's hostname is 15 characters or less. Therefore, when the hostname of your computer is more than 15 characters, you should set the DNS hostname for the machine account to ensure that the correct machine account is found. If no match is found, Likewise creates a machine account.
The location of the domain join command-line utility is as follows:
/opt/likewise/bin/domainjoin-cli
After you join a domain for the first time, you must restart the computer before you can log on. If you cannot restart the computer, you must restart each service or daemon that looks up users or groups through the standard nsswitch interface, which includes most services that authenticate users, groups, or computers. You must, for instance, restart the services that use Kerberos, such as sshd.
For Linux computers, there is an optional graphical version of the Likewise domain join tool. It is installed on Linux platforms that are running GTK+ version 2.6 or later. For more information, see Join a Linux Computer to Active Directory with the GUI.
Important: On Linux computers running NetworkManager -- which is often used for wireless connections -- you must make sure before you join a domain that the computer has a non-wireless network connection and that the non-wireless connection is configured to start when the networking cable is plugged in. You must continue to use the non-wireless network connection during the post-join process of restarting your computer and logging on for the first time with your Active Directory domain credentials. For more information, see With NetworkManager, Use a Wired Connection to Join a Domain.
To join a computer to a domain, you must have the user name and password of an Active Directory account that has privileges to join computers to the domain and the full name of the domain that you want to join. Instructions on how to delegate rights to join a computer to a domain are at http://support.microsoft.com/kb/932455. The level of privileges that you need is set by Microsoft Active Directory and is typically the same as performing the corresponding action on a Windows computer. For more information on Active Directory privileges, permissions, and security groups, see the following references on the Microsoft Technet web site: Active Directory Privileges, Active Directory Object Permissions, Active Directory Users, Computers, and Groups, Securing Active Directory Administrative Groups and Accounts.
You can remove a computer from the domain either by removing the computer's account from Active Directory Users and Computers or by running the domain join tool on the Unix, Linux, or Mac OS X computer that you want to remove; see Leave a Domain.
After you join a domain, Likewise creates two local user accounts in the following form: machine-name\Administrator and machine-name\Guest. The administrator account is disabled until you enable it by running the lw-mod-user command with the root account. You will be prompted to reset the password the first time you use the account.
You can view information about these accounts by executing the following command:
/opt/likewise/bin/lw-enum-users
Example output:
User info (Level-2): ==================== Name: NISHI-01\Administrator UPN: Administrator@NISHI-01 Generated UPN: YES Uid: 1500 Gid: 1544 Gecos: <null> Shell: /bin/sh Home dir: / LMHash length: 0 NTHash length: 0 Local User: YES Account disabled: TRUE Account Expired: FALSE Account Locked: FALSE Password never expires: FALSE Password Expired: TRUE Prompt for password change: YES User can change password: NO Days till password expires: -149314 User info (Level-2): ==================== Name: NISHI-01\Guest UPN: Guest@NISHI-01 Generated UPN: YES Uid: 1501 Gid: 1546 Gecos: <null> Shell: /bin/sh Home dir: /tmp LMHash length: 0 NTHash length: 0 Local User: YES Account disabled: TRUE Account Expired: FALSE Account Locked: TRUE Password never expires: FALSE Password Expired: FALSE Prompt for password change: YES User can change password: NO Days till password expires: -149314
On Linux, Unix, and Mac OS X computers, the location of the domain join command-line utility is as follows:
/opt/likewise/bin/domainjoin-cli
Important: To run the command-line utility, you must use a root account. To join a computer to a domain, you must have the user name and password of an Active Directory account that has privileges to join computers to the domain and the full name of the domain that you want to join. Instructions on how to delegate rights to join a computer to a domain are at http://support.microsoft.com/kb/932455. After you join a domain for the first time, you must restart the computer before you can log on with your domain account.
When you join a domain by using the command-line utility, Likewise uses the hostname of the computer to derive a fully qualified domain name (FQDN) and then automatically sets the FQDN in the /etc/hosts file. You can also join a domain without changing the /etc/hosts file; see Join Active Directory Without Changing /etc/hosts.
To join a domain, the computer's name server must be able to find the domain and the computer must be able to reach the domain controller. You can make sure the name server can find the domain by running this command:
nslookup domainName
You can verify that your computer can reach the domain controller by pinging it:
ping domainName
If either of these tests fails, see Check System Health Before Installing the Agent and Solve Domain-Join Problems.
Execute the following command as root, replacing domainName with the FQDN of the domain that you want to join and joinAccount with the user name of an account that has privileges to join computers to the domain:
/opt/likewise/bin/domainjoin-cli join domainName joinAccount
Example: /opt/likewise/bin/domainjoin-cli join likewisedemo.com Administrator
Tip: On Ubuntu, execute the sudo su - command before you run the domainjoin-cli command.
Using sudo, execute the following command in Terminal, replacing domainName with the FQDN of the domain that you want to join and joinAccount with the user name of an account that has privileges to join computers to the domain:
sudo /opt/likewise/bin/domainjoin-cli join domainName joinAccount
Example: sudo /opt/likewise/bin/domainjoin-cli join likewisedemo.com Administrator
The terminal prompts you for two passwords: The first is for a user account on the Mac that has administrative privileges; the second is for the account in Active Directory that you specified in the join command.
Execute the following command as root, replacing organizationalUnitName with the path and name of the organizational unit that you want to join, domainName with the FQDN of the domain, and joinAccount with the user name of an account that has privileges to join computers to the domain:
/opt/likewise/bin/domainjoin-cli join --ou organizationalUnitName domainName joinAccount
Example: /opt/likewise/bin/domainjoin-cli join --ou Engineering likewisedemo.com Administrator
Execute the following command as root, replacing path with the AD path to the OU from the top down, with each node separated by a forward slash (/). In addition, replace organizationalUnitName with the name of the organizational unit that you want to join. Replace domainName with the FQDN of the domain and joinAccount with the user name of an AD account that has privileges to join computers to the target OU:
/opt/likewise/bin/domainjoin-cli join --ou path/organizationalUnitName domainName joinAccount
Here's an example of how to join a deeply nested OU:
domainjoin-cli join --ou topLevelOU/middleLevelOU/LowerLevelOU/TargetOU likewisedemo.com Administrator
The domainjoin-cli command-line interface includes the following options:
|
Option |
Description |
Example |
|
|
Displays the command-line options and commands. |
|
|
|
Displays a list of the internal debugging and configuration commands. |
|
|
|
Generates a log file or prints the log to the console. |
|
The domain join command-line interface includes the following basic commands:
|
Command |
Description |
Example |
|
|
Displays the hostname, current domain, and distinguished name, which includes the OU to which the computer belongs. If the computer is not joined to a domain, it displays only the hostname. |
|
|
|
Renames the computer and modifies the |
|
|
|
Fixes a computer's fully qualified domain name. |
|
|
|
Joins the computer to the domain that you specify by using the account that you specify. You can use the |
|
|
|
Joins the computer to the domain without synchronizing the computer's time with the domain controller's. When you use this option, the |
|
|
|
Removes the computer from the Active Directory domain. If the |
|
The command-line interface includes advanced commands that you can use to preview the stages of joining or leaving a domain, find out which configurations are required for your system, view information about a module that will be changed, configure a module such as nsswitch, and enable or disable a module. The advanced commands provide a potent tool for troubleshooting issues while configuring a Linux or Unix computer to interoperate with Active Directory.
View a data-flow diagram that shows how systems interact when you join a domain.
To preview the domain, DNS name, and configuration stages that will be used to join a computer to a domain, execute the following command at the command line:
domainjoin-cli join --preview domainName
Example: domainjoin-cli join --preview likewisedemo.com
Here's an example of the results, which can vary by computer:
[root@rhel4d bin]# domainjoin-cli join --preview likewisedemo.com Joining to AD Domain: likewisedemo.com With Computer DNS Name: rhel4d.likewisedemo.com The following stages are currently configured to be run during the domain join: join - join computer to AD krb5 - configure krb5.conf nsswitch - enable/disable Likewise nsswitch module start - start daemons pam - configure pam.d/pam.conf ssh - configure ssh and sshd
To see a full listing of the modules that apply to your operating system, including those modules that will not be run, execute either the following join or leave command:
domainjoin-cli join --advanced --preview domainName
domainjoin-cli leave --advanced --preview domainName
Example: domainjoin-cli join --advanced --preview likewisedemo.com
The result varies by computer:
[root@rhel4d bin]# domainjoin-cli join --advanced --preview likewisedemo.com
Joining to AD Domain: likewisedemo.com
With Computer DNS Name: rhel4d.likewisedemo.com
[F] stop - stop daemons
[F] hostname - set computer hostname
[F] firewall - open ports to DC
[F] keytab - initialize kerberos keytab
[X] [N] join - join computer to AD
[X] [N] krb5 - configure krb5.conf
[X] [N] nsswitch - enable/disable Likewise nsswitch module
[X] [N] start - start daemons
[F] gdm - fix gdm presession script for spaces in usernames
[X] [N] pam - configure pam.d/pam.conf
[X] [S] ssh - configure ssh and sshd
Key to flags
[F]ully configured - the system is already configured for this step
[S]ufficiently configured - the system meets the minimum configuration
requirements for this step
[N]ecessary - this step must be run or manually performed.
[X] - this step is enabled and will make changes
[ ] - this step is disabled and will not make changes
The Likewise domain join tool includes the following modules -- the components and services that the tool must configure before it can join a computer to a domain:
|
Module |
Description |
|
join |
Joins the computer to Active Directory |
|
leave |
Deletes the machine account in Active Directory |
|
dsplugin |
Enables the Likewise directory services plugin on a Mac computer |
|
stop |
Stops daemons so that the system can be configured |
|
start |
Starts daemons after configuration |
|
firewall |
Opens ports to the domain controller |
|
hostname |
sets the computer hostname |
|
krb5 |
Configures |
|
pam-mode |
Switches authentication from LAM to PAM |
|
nsswitch |
Enables or disables Likewise nsswitch module |
|
pam |
Configures pam.d and pam.conf |
|
lam-auth |
Configures LAM for Active Directory authentication |
|
ssh |
Configures ssh and sshd |
|
bash |
Fixes the bash prompt for backslashes in usernames |
|
gdm |
Fixes gdm presession script for spaces in usernames |
As the previous section illustrated, you can see the modules that must be configured on your computer by executing the following command:
domainjoin-cli join --advanced --preview domainName
You can further bore down into the details of the changes that a module will make by using either the following join or leave command:
domainjoin-cli join --details module domainName joinAccount
domainjoin-cli leave --details module domainName joinAccount
Example: domainjoin-cli join --details nsswitch likewisedemo.com Administrator
The result varies depending on your system's configuration:
domainjoin-cli join --details nsswitch likewisedemo.com Administrator
[X] [N] nsswitch - enable/disable Likewise nsswitch module
Key to flags
[F]ully configured - the system is already configured for this step
[S]ufficiently configured - the system meets the minimum configuration
requirements for this step
[N]ecessary - this step must be run or manually performed.
[X] - this step is enabled and will make changes
[ ] - this step is disabled and will not make changes
Details for 'enable/disable Likewise nsswitch module':
The following steps are required and can be performed automatically:
* Edit nsswitch apparmor profile to allow libraries in the /opt/likewise/lib
and /opt/likewise/lib64 directories
* List lwidentity module in /usr/lib/security/methods.cfg (AIX only)
* Add lwidentity to passwd and group/groups line /etc/nsswitch.conf or
/etc/netsvc.conf
If any changes are performed, then the following services must be restarted:
* GDM
* XDM
* Cron
* Dbus
* Nscd
You can explicitly enable or disable a module when you join or leave a domain. Disabling a module can be useful in cases where a module has been manually configured or in cases where you must ensure that certain system files will not be modified.
Note: If you disable a necessary module and you have not manually configured it, the domain join utility will not join your computer to the domain.
The following command, with either join or leave, can be used to disable a module:
domainjoin-cli join --disable module domainName accountName domainjoin-cli leave --disable module domainName accountName
Example: domainjoin-cli join --disable pam likewisedemo.com Administrator
To enable a module, execute the following command at the command line:
domainjoin-cli join --enable module domainName accountName
Example: domainjoin-cli join --enable pam likewisedemo.com Administrator
The domainjoin-cli tool includes commands for debugging the domain-join process and for configuring or preconfiguring a module. You can, for example, run the configure command to preconfigure a system before you join a domain -- a useful strategy when you are deploying Likewise in a virtual environment and you need to preconfigure the nsswitch, ssh, or PAM module of the target computers to avoid having to restart them after they are added to the domain. Here's an example with nsswitch:
domainjoin-cli configure --enable nsswitch
The following commands, viewable by running domainjoin-cli --help-internal, are available:
fixfqdn
configure { --enable | --disable } pam [--testprefix <dir>]
configure { --enable | --disable } nsswitch [--testprefix <dir>]
configure { --enable | --disable } ssh [--testprefix <dir>]
configure { --enable | --disable } [--testprefix <dir>]
[--long <longdomain>] [--short <shortdomain>] krb5
configure { --enable | --disable } firewall [--testprefix <dir>]
configure { --enable | --disable } eventfwdd
configure { --enable | --disable } reapsysld
get_os_type
get_arch
get_distro
get_distro_version
raise_error <error code | error name | 0xhex error code>
When you join a computer to a domain by using the Likewise domain join tool, Likewise uses the hostname of the computer to derive a fully qualified domain name (FQDN) and automatically sets the computer’s FQDN in the /etc/hosts file.
To join a Linux computer to the domain without changing the /etc/hosts file, execute the following command as root, replacing domainName with the FQDN of the domain that you want to join and joinAccount with the user name of an account that has privileges to join computers to the domain:
/opt/likewise/bin/domainjoin-cli join --disable hostname domainName joinAccount
Example: /opt/likewise/bin/domainjoin-cli join --disable hostname likewisedemo.com Administrator
After you join a domain for the first time, you must restart the computer before you can log on.
Make sure the computer's FQDN is correct in /etc/hosts. For the computer to process tickets in compliance with the Kerberos protocol and to function properly when it uses cached credentials in offline mode or when its DNS server is offline, there must be a correct FQDN in /etc/hosts. For more information on GSS-API requirements, see RFC 2743.
You can determine the fully qualified domain name of a computer running Linux, Unix, or Mac OS X by executing the following command:
ping -c 1 `hostname`
When you execute this command, the computer looks up the primary host entry for its hostname. In most cases, this means that it looks for its hostname in /etc/hosts, returning the first FQDN name on the same line. So, for the hostname qaserver, here's an example of a correct entry in /etc/hosts:
10.100.10.10 qaserver.corpqa.likewise.com qaserver
If, however, the entry in /etc/hosts incorrectly lists the hostname (or anything else) before the FQDN, the computer's FQDN becomes, using the malformed example below, qaserver:
10.100.10.10 qaserver qaserver.corpqa.likewise.com
If the host entry cannot be found in /etc/hosts, the computer looks for the results in DNS instead. This means that the computer must have a correct A record in DNS. If the DNS information is wrong and you cannot correct it, add an entry to /etc/hosts.
A graphical user interface for joining a domain is included when you install the Likewise agent.
Important: To join a computer to a domain, you must have the user name and password of a user who has privileges to join computers to a domain and the full name of the domain that you want to join.
With root privileges, run the following command at the shell prompt of a Linux computer:
/opt/likewise/bin/domainjoin-gui
Still as root, in the Domain box, enter the Fully Qualified Domain Name (FQDN) of your Active Directory domain. Example: CORP.LIKEWISEDEMO.COM

Note: The domain join tool automatically sets the computer’s FQDN by modifying the /etc/hosts file. For example, if your computer's name is qaserver and the domain is corpqa.likewise.com, the domain join tool adds the following entry to the /etc/hosts file: qaserver.corpqa.likewise.com. To manually set the computer's FQDN, see Join Active Directory Without Changing /etc/hosts.
To avoid typing the domain prefix before your user or group name each time you log on -- that is, to force the computer to assume the default domain -- select Enable default user name prefix and enter your domain prefix in the box. Example: CORP
Under Organizational Unit, you can optionally join the computer to an OU by selecting Specific OU Path and then typing a path in the box. The OU path is from the top of the Active Directory domain down to the OU that you want.
Or, to join the computer to the Computers container, select Default (Computers or previously-joined OU).
Click Join Domain.
Enter the user name and password of an Active Directory account that has privileges to join computers to the domain and then click OK.
Note: If you do not use an Active Directory Domain Administrator account, you might not have sufficient privileges to change a machine object in Active Directory.
After you join a domain for the first time, you must restart the computer before you can log on.
To join a computer running Mac OS X 10.4 or later to an Active Directory domain, you must have administrative privileges on the Mac and privileges on the Active Directory domain that allow you to join a computer.
In Finder, click Applications. In the list of applications, double-click Utilities, and then double-click Directory Access in OS X 10.4 or Directory Utility in OS X 10.5. In Mac OS X 10.6 (Snow Leopard), you gain access to Directory Utility by using the Apple menu
to view the system preferences for accounts; for instructions, see your Mac OS X 10.6 documentation.

On Mac OS X 10.5, click Show Advanced Settings.
On the Services tab, click the lock
and enter an administrator name and password to unlock it.
In the list, make sure that the check box for Active Directory is not selected.
Important: Active Directory, Apple's built-in service for interoperating with AD, must be disabled for Likewise to work properly.
In the list, click Likewise - Active Directory, make sure the Enable check box for Likewise - Active Directory is selected, and then click Configure in OS X 10.4 or double-click Likewise – Active Directory in OS X 10.5 and later.
Note: On Mac OS X 10.6, if Likewise - Active Directory does not appear in the list, restart your computer.

Enter a name and password of a local machine account with administrative privileges.
On the menu bar at the top of the screen, click the Likewise Domain Join menu, and then click Join or Leave Domain.
In the Computer name box, type the local hostname of the Mac without the .local extension. Because of a limitation with Active Directory, the local hostname cannot be more than 15 characters. Also: localhost is not a valid name.
Tip: To find the local hostname of a Mac, on the Apple menu
, click System Preferences, and then click Sharing. Under the Computer Name box, click Edit. Your Mac's local hostname is displayed.
In the Domain to join box, type the fully qualified domain name of the Active Directory domain that you want to join.
Under Organizational Unit, you can join the computer to an OU in the domain by selecting OU Path and then typing a path in the OU Path box.
Note: To join the computer to an OU, you must be a member of the Domain Administrator security group.
Or, to join the computer to the Computers container, select Default to "Computers" container.
Click Join.
After you are joined to the domain, you can set the display login window preference on the Mac: On the Apple menu
, click System Preferences, and then under System, click Accounts.
Click the lock
and enter an administrator's name and password to unlock it.
Click Login Options, and then under Display login window as, select Name and password.
With Likewise Enterprise, the domain join utility includes a tool to migrate a Mac user's profile from a local user account to the home directory specified for the user in Active Directory; see Migrate a User Profile on a Mac.
If you are migrating from Open Directory or Active Directory and you had set authentication from the command line with dsconfigad or dsconfigldap, you must run the following commands to stop the computer from trying to use the built-in directory service even if the Mac is not bound to it:
dscl . -delete /Computers dscl /Search -delete / CSPSearchPath /LDAPv3/FQDNforYourDomainController dscl /Search -delete / CSPSearchPath /Active\ Directory/All\ Domains dscl /Search/Contacts -delete / CSPSearchPath /Active\ Directory/All\ Domains dscl /Search/Contacts -delete / CSPSearchPath /LDAPv3/FQDNforYourDomainController
If you have write privileges only for an organizational unit in Active Directory, you can still use Likewise. Your AD rights to create objects in an OU allow you to join Linux and Unix computers to the OU even though you do not have Active Directory Domain Administrator or Enterprise Administrator privileges. (See Delegate Control to Create Container Objects.)
There are additional limitations to this approach:
You must join the computer to a specific OU, and you must know the path to that OU.
You cannot use Likewise Enterprise in schema mode unless you have Enterprise Administrator privileges, which are required to upgrade the schema.
To join a computer to a domain, you must have the user name and password of an account that has privileges to join computers to the OU and the full name of the domain that you want to join. The OU path is from the top OU down to the OU that you want.
As root, execute the following command, replacing organizationalUnitName with the path and name of the organizational unit that you want to join, domainName with the FQDN of the domain, and joinAccount with the user name of an account that has privileges to join computers to the domain:
/opt/likewise/bin/domainjoin-cli join -- ou organizationalUnitName domainName joinAccount
Example: /opt/likewise/bin/domainjoin-cli join -- ou Engineering likewisedemo.com Administrator
Example of how to join a nested OU:
domainjoin-cli join --ou topLevelOU/middleLevelOU/LowerLevelOU/TargetOU likewisedemo.com Administrator
After you join a domain for the first time, you must restart the computer before you can log on.
To rename a computer that has been joined to Active Directory, you must first leave the domain. You can then rename the computer by using the domain join command-line interface. After you rename the computer, you must rejoin it to the domain. Renaming a joined computer requires the user name and password of a user with privileges to join a computer to a domain.
Important: Do not change the name of a Linux, Unix, or Mac computer by using the hostname command because some distributions do not permanently apply the changes.
The following procedure removes a Unix or Linux computer from the domain, renames the computer, and then rejoins it to the domain.
With root privileges, at the shell prompt of a Unix computer, execute the following command:
/opt/likewise/bin/domainjoin-cli leave
To rename the computer in /etc/hosts, execute the following command, replacing computerName with the new name of the computer:
/opt/likewise/bin/domainjoin-cli setname computerName
Example: /opt/likewise/bin/domainjoin-cli setname RHEL44ID
To rejoin the renamed computer to the domain, execute the following command at the shell prompt, replacing DomainName with the name of the domain that you want to join and UserName with the user name of a user who has privileges to join a domain:
/opt/likewise/bin/domainjoin-cli join DomainName UserName
Example: /opt/likewise/bin/domainjoin-cli join likewisedemo.com Administrator
It may take a few moments before the computer is joined to the domain.
After you change the hostname of a computer, you must also change the name in the Likewise local provider database so that the local Likewise accounts use the correct prefix. To do so, execute the following command as root, replacing hostName with the name that you want:
/opt/likewise/bin/lw-set-machine-name hostName
From the desktop with root privileges, double-click the Likewise Domain Join Tool, or at the shell prompt of a Linux computer, type the following command:
/opt/likewise/bin/domainjoin-gui
Click Leave, and then click OK.
Start the domain join tool again by double-clicking the Likewise Domain Join Tool on the desktop, or by typing the following command at the shell prompt of a Linux computer:
/opt/likewise/bin/domainjoin-gui
Click Next.
In the Computer Name box, rename the computer by typing a new name.

In the Domain to join box, enter the Fully Qualified Domain Name (FQDN) of the Active Directory domain.
Under Organizational Unit, you can join the computer to an OU in the domain by selecting OU Path and then typing a path in the OU Path box.
Or, to join the computer to the Computers container, select Default to "Computers" container.
Click Next.
Enter the user name and password of an Active Directory user with authority to join a machine to the Active Directory domain, and then click OK.
The computer's name in /etc/hosts has been changed to the name that you specified and the computer has been joined to the Active Directory domain with the new name.
After you change the hostname of a computer, you must also change the name in the Likewise local provider database so that the local Likewise accounts use the correct prefix. To do so, execute the following command as root, replacing hostName with the name that you want:
/opt/likewise/bin/lw-set-machine-name hostName
When Likewise adds a computer to a domain, it modifies some system files. The files that are modified depend on the platform, the distribution, and the system's configuration. The following files might be modified.
To see a listing of the changes that joining a domain will make to your operating system, execute the following join command:
domainjoin-cli join --advanced --preview domainName
Note: Not all the following files are present on all computers.
/etc/nsswitch.conf (On AIX, the file is /etc/netsvcs.conf.)
/etc/pam.conf on AIX, HP-UX, and Solaris
/etc/pam.d/* on Linux
/etc/ssh/{ssh_config,sshd_config} (or wherever sshd configuration is located)
/etc/hosts (To join a domain without modifying /etc/hosts, see Join Active Directory Without Changing /etc/hosts.)
/etc/apparmor.d/abstractions/nameservice
/etc/X11/gdm/PreSession/Default
/etc/vmware/firewall/services.xml
/usr/lib/security/methods.cfg
/etc/security/user
/etc/security/login.cfg
/etc/netsvc.conf
/etc/krb5.conf
/etc/krb5/krb5.conf
/etc/rc.config.d/netconf
/etc/nodename
/etc/{hostname,HOSTNAME,hostname.*}
/etc/sysconfig/network/config
/etc/sysconfig/network/dhcp
/etc/sysconfig/network/ifcfg-*
/etc/sysconfig/network-scripts/ifcfg-*
/etc/init.d or /sbin/init.d
/etc/rcX.d/ (new files and links created)
/etc/inet/ipnodes
As an example, the following table lists the files that are modified for the default configuration of the operating system of a few selected platforms.
| Modified files | Solaris 9 | Solaris 10 | AIX 5.3 | AIX 6.1 | Red Hat Enterprise Linux 5 |
| /etc/nsswitch.conf (On AIX, the file is /etc/netsvcs.conf.) | Modified | Modified | Modified | ||
| /etc/pam.conf on AIX, HP-UX, and Solaris | Modified | Modified | Modified | Modified | |
| /etc/pam.d/* on Linux | Modified | ||||
| /etc/ssh/{ssh_config,sshd_config} (or wherever sshd configuration is located) | Modified | Modified | Modified | ||
| /etc/hosts | Modified | Modified | Modified | Modified | Modified |
| /etc/apparmor.d/abstractions/nameservice | |||||
| /etc/X11/gdm/PreSession/Default | |||||
| /etc/vmware/firewall/services.xml | |||||
| /usr/lib/security/methods.cfg | Modified | Modified | |||
| /etc/security/user | Modified | Modified | |||
| /etc/security/login.cfg | Modified | ||||
| /etc/netsvc.conf | Modified | Modified | |||
| /etc/krb5.conf | Modified | Modified | Modified | ||
| /etc/krb5/krb5.conf | Modified | Modified | |||
| /etc/rc.config.d/netconf | |||||
| /etc/nodename | Modified | Modified | |||
| /etc/{hostname, HOSTNAME, hostname.*} | Modified | ||||
| /etc/sysconfig/network/config | |||||
| /etc/sysconfig/network/dhcp | |||||
| /etc/sysconfig/network/ifcfg-* | |||||
| /etc/sysconfig/network-scripts/ifcfg-* | |||||
| /etc/init.d or /sbin/init.d | |||||
| /etc/rcX.d/ (new files and links created) | Modified | ||||
| /etc/inet/ipnodes | Modified | Modified |
On Linux computers running NetworkManager -- which is often used for wireless connections -- you must make sure before you join a domain that the computer has a non-wireless network connection and that the non-wireless connection is configured to start when the networking cable is plugged in. You must continue to use the non-wireless network connection during the post-join process of restarting your computer and logging on with your Active Directory domain credentials.
After you have joined the domain and logged on for the first time with your AD domain credentials by using a non-wireless connection, you can then revert to using your wireless connection because your AD logon credentials are cached. (You will not, however, be notified when your AD password is set to expire until you either run a sudo command or log on by using a non-wireless connection.)
If, instead, you attempt to use a wireless connection when you join the domain, you will be unable to log on your computer with AD domain credentials after your computer restarts.
Here's why: NetworkManager is composed of a daemon that runs at startup and a user-mode application that runs only after you log on. NetworkManager is typically configured to auto-start wired network connections when they are plugged in and wireless connections when they are detected. The problem is that the wireless network is not detected until the user-mode application starts -- which occurs only after you have logged on.
Information about NetworkManager is available at http://projects.gnome.org/NetworkManager/.
Table of Contents
Likewise includes the following logon options:
Full domain credentials -- example: likewisedemo.com//hoenstiv
Single domain user name -- example: likewisedemo//hoenstiv
Alias -- example: stiv
(For Likewise Enterprise, see Set a User Alias and Set a Group Alias.
Cached credentials
Important: When you log on from the command line, you must use a slash to escape the slash character, making the logon form DOMAIN//username.
To use UPN names, you must raise your Active Directory forest functional level to Windows Server 2003, but raising the forest functional level to Windows Server 2003 will exclude Windows 2000 domain controllers from the domain. For more information, see About Schema Mode and Non-Schema Mode.
When you log on a Linux, Unix, or Mac OS X computer by using your domain credentials, Likewise uses the Kerberos protocol to connect to Active Directory's key distribution center, or KDC, to establish a key and to request a Kerberos ticket granting ticket (TGT). The TGT lets you log on to other computers joined to Active Directory or applications provisioned with a service principal name and be automatically authenticated with Kerberos and authorized for access through Active Directory.
After logon, Likewise stores the password in memory and securely backs it up on disk. You can, however, configure Likewise to store logon information in a SQLite database, but it is not the default method. The password is used to refresh the user's Kerberos TGT and to provide NTLM-based single sign-on through the Likewise GSSAPI library. In addition, the NTLM verifier hash -- a hash of the NTLM hash -- is stored to disk to handle offline logons by comparing the password with the cached credentials.
Likewise stores an NTLM hash and LM hash only for accounts in Likewise's local provider. The hashes are used to authenticate users over CIFS. Since Likewise does not support offline logons for domain users over CIFS, it does not store the LM hash for domain users.
See Also
After the Likewise agent has been installed and the Linux or Unix computer has been joined to a domain, you can log on with your Active Directory credentials, either from the command line or interactively through the system console. After you join a domain for the first time, you must reboot your computer before you can log on interactively through the console.
Log on from the command line, but make sure you use a slash character to escape the slash, making the logon form DOMAIN\\username.
Example with ssh: ssh likewisedemo.com\\hoenstiv@localhost
Log on the system console or the text login prompt by using an Active Directory user account in the form of DOMAIN\username, where DOMAIN is the Active Directory short name. Example on Ubuntu:

You can log on with SSH by executing the ssh command at the shell prompt in the following format:
ssh DOMAIN\\username@localhost
Example: ssh likewisedemo.com\\hoenstiv@localhost
To troubleshoot a problem with a user who cannot log on a to Linux or Unix computer with SSH from Windows, perform the following series of diagnostic tests sequentially.
On a Windows computer, log off and then log on again with the problem user's AD credentials to verify that the password is correct and that the account is not locked.
Try to SSH to the target Linux or Unix computer again with the user's full NT4-style credentials, not the user's alias. In your SSH command, make sure to use a slash character to escape the slash.
If you are using Likewise Enterprise, make sure that the user's computer is in the correct Likewise cell.
Make sure that the user is enabled to log on the computer, either by being enabled in the cell (with Likewise Enterprise) or by being in a group allowed to access the computer. Then try to log on the target computer again.
Log on the computer with a different user account -- one that is enabled for access to the computer.
To troubleshoot problems logging on a Linux computer with Active Directory credentials after you joined the computer to a domain, perform the following series of diagnostic tests sequentially with a root account. The tests can also be used to troubleshoot logon problems on a Unix or Mac OS X computer; however, the syntax of the commands on Unix and Mac might be slightly different.
Execute the following command:
/opt/likewise/bin/domainjoin-cli query
If you are not joined, see Join Active Directory with the Command Line.
When troubleshooting a logon problem, use your full domain credentials: DOMAIN\username. Example: likewisedemo.com\hoenstiv.
When logging on from the command line, you must escape the slash character with a slash character, making the logon form DOMAIN\\username. Example: likewisedemo.com\\hoenstiv.
To view a list of logon options, see About Logging On.
You might need to clear the cache to ensure that the client computer recognizes the user's ID. See Clear the Authentication Cache.
Clear the Likewise Kerberos cache to make sure there is not an issue with a user's Kerberos tickets. Execute the following command with the user account that you are troubleshooting:
/opt/likewise/bin/kdestroy
Check the status of the authentication daemon on a Unix or Linux computer running the Likewise Agent by executing the following command as the root user:
/opt/likewise/bin/lwsm status lsass
|
If |
Do This |
|
The result looks like this: lsassd is stopped | |
|
The result looks like this: lsassd (pid 1783) is running... |
Proceed to the next test. |
Verify that the Likewise daemon can exchange data with AD by executing this command:
/opt/likewise/bin/lw-get-dc-name FullDomainName
Example: /opt/likewise/bin/lw-get-dc-name likewisedemo.com
|
If |
Do This |
|
The result does not show the name and IP address of your domain controller |
|
|
The result shows the correct domain controller name and IP address |
Proceed to the next test. |
Verify that the Likewise agent can find your user by executing the following command, substituting the name of a valid AD domain for domainName and a valid user for ADuserName:
/opt/likewise/bin/lw-find-user-by-name domainName\\ADuserName
Example: /opt/likewise/bin/lw-find-user-by-name likewisedemo\\hab
|
If |
Do This |
|
The command fails to find the user |
|
|
The user is found |
Proceed to the PAM test later in this topic. |
Likewise includes two authentication providers:
The local provider
The Active Directory provider
If the AD provider is not online, users are unable to log on with their AD credentials. To check the status of the authentication providers, execute the following command as root:
/opt/likewise/bin/lw-get-status
A healthy result should look like this:
LSA Server Status:
Agent version: 5.0.0
Uptime: 2 days 21 hours 16 minutes 29 seconds
[Authentication provider: lsa-local-provider]
Status: Online
Mode: Local system
[Authentication provider: lsa-activedirectory-provider]
Status: Online
Mode: Un-provisioned
Domain: likewisedemo.com
Forest: likewisedemo.com
Site: Default-First-Site-Name
An unhealthy result will not include the AD authentication provider or will indicate that it is offline. If the AD authentication provider is not listed in the results, restart the authentication daemon.
If the result looks like the line below, check the status of the Likewise daemons to make sure they are running.
Failed to query status from LSA service. The LSASS server is not responding.
id Command to Check the UserRun the following id command to check whether nsswitch is properly configured to handle AD user account information:
id DOMAIN\\username
Example: id likewisedemo\\kathy
If the command does not show information for the user, check whether the /etc/nsswitch.conf file is properly configured for passwd and group: Both entries should include the lsass parameter.
If /etc/nsswitch.conf is properly configured, the Likewise name service libraries might be missing or misplaced. It is also possible that the LD_PRELOAD or LD_LIBRARY_PATH variables are defined without including the Likewise libraries.
Verify that a user's password can be validated through PAM by using the switch user service. Either switch from a non-root user to a domain user or from root to a domain user. If you switch from root to a domain user, run the command below twice so that you are prompted for the domain user's password:
su DOMAIN\\username
Example: su likewisedemo\\hoenstiv
|
If |
Do This |
|
The switch user command fails to validate the user |
Also, check the following log files for error messages (the location of the log files varies by operating system):
|
Check whether you can log on with SSH by executing the following command:
ssh DOMAIN\\username@localhost
Example: ssh likewisedemo.com\\hoenstiv@localhost
To troubleshoot the lookup of a user or group ID, you can set the Likewise authentication daemon to run in debug mode and show the log in the console by executing this command:
/opt/likewise/sbin/lsassd --loglevel debug
Make sure /etc/nsswitch.conf is configured correctly to work with Likewise. For more information, see Configuring Clients Before Agent Installation.
When you log on to the console on some versions of HP-UX, such as 11.23, you might need to escape special characters, such as @ and #, by preceding them with a slash (\). For more information, see your HP-UX documentation.
There are additional command-line utilities that you can use to troubleshoot logon problems in the following directory:
/opt/likewise/bin
See Also
Table of Contents
Here are the top 10 reasons that an attempt to join a domain fails:
Root was not used to run the domain-join command (or to run the domain-join graphical user interface).
The user name or password of the account used to join the domain is incorrect.
The name of the domain is mistyped.
The name of the OU is mistyped.
The local hostname is invalid.
The domain controller is unreachable from the client because of a firewall or because the NTP service is not running on the domain controller. (See Make Sure Outbound Ports Are Open and Diagnose NTP on Port 123.)
The client is running RHEL 2.1 and has an old version of SSH.
On SUSE, GDM ( dbus) must be restarted. This daemon cannot be automatically restarted if the user logged on with the graphical user interface.
On HP-UX and Solaris, dtlogin must be restarted. This daemon cannot be automatically restarted if the user logged on with the HP-UX or Solaris graphical user interface. To restart dtlogin, run the following command: /sbin/init.d/dtlogin.rc start
SELinux is turned on by being set to either enforcing or permissive -- which is especially likely on Fedora and some versions of Red Hat. SELinux must be set to disabled before the computer can be joined to the domain.
To turn off SELinux, edit the following file, which is the primary configuration file for enabling and disabling SELinux:
/etc/sysconfig/selinux
or
/etc/selinux/config
For instructions on how to edit the file to disable SELinux, see the SELinux man page.
See Also
To troubleshoot problems with joining a Linux computer to a domain, perform the following series of diagnostic tests sequentially on the Linux computer with a root account. The tests can also be used to troubleshoot domain-join problems on a Unix or Mac OS X computer; however, the syntax of the commands on Unix and Mac might be slightly different.
The procedures in this topic assume that you have already checked whether the problem falls under the Top 10 Reasons Domain Join Fails. It is also recommended that you generate a domain-join log.
Run the following command as root:
nslookup YourADrootDomain.com
You can verify that your computer can reach the domain controller by pinging it:
ping YourDomainName
Run the following command as root:
domainjoin-cli join --details firewall likewisedemo.com
The results of the command show whether you must open any ports.
For a list of ports that must be open on the client, see Make Sure Outbound Ports Are Open.
The computer might be using the wrong DNS server or none at all. Make sure the nameserver entry in /etc/resolv.conf contains the IP address of a DNS server that can resolve the name of the domain you are trying to join. The IP address is likely to be that of one of your domain controllers.
nsswitch.conf Is Configured to Check DNS for Host NamesThe /etc/nsswitch.conf file must contain the following line. (On AIX, the file is /etc/netsvc.conf.)
hosts: files dns
Computers running Solaris, in particular, may not contain this line in nsswitch.conf until you add it.
To log information about your attempt to join a domain, you can use the command-line utility's log option with the join command. The log option captures information about the attempt to join the domain on the screen or in a file.
To display the information in the terminal, execute the following command; the dot after
the logfile option denotes that the information is to be shown in the console:
domainjoin-cli --logfile . join domainName userName
To save the information in a log file, execute the following command:
domainjoin-cli --logfile path join domainName userName
Example:
domainjoin-cli --logfile /var/log/domainjoin.log join likewisedemo.com Administrator
After you generate a log, review it for information that might help solve the problem.
If the computer is multi-homed, the DNS queries might be going out the wrong network interface card. Temporarily disable all the NICs except for the card on the same subnet as your domain controller or DNS server and then test DNS lookups to the AD domain. If this works, re-enable all the NICs and edit the local or network routing tables so that the AD domain controllers are accessible from the host.
Your DNS server must be set to return SRV records so the domain controller can be located. It is common for non-Windows (bind) DNS servers to not be configured to return SRV records.
Diagnose it by executing the following command:
nslookup -q=srv _ldap._tcp. ADdomainToJoin.com
The global catalog for Active Directory must be accessible. A global catalog in a different zone might not show up in DNS. Diagnose it by executing the following command:
nslookup -q=srv _ldap._tcp.gc._msdcs. ADrootDomain.com
From the list of IP addresses in the results, choose one or more addresses and test whether they are accessible on Port 3268 by using telnet.
telnet 192.168.100.20 3268
Trying 192.168.100.20...
Connected to sales-dc.likewisedemo.com (192.168.100.20).
Escape character is '^]'.
Press the Enter key to close the connection:
Connection closed by foreign host.
The following test checks whether the client can connect to the domain controller on Port 123 and whether the Network Time Protocol (NTP) service is running on the domain controller. For the client to join the domain, NTP -- the Windows time service -- must be running on the domain controller.
On a Linux computer, run the following command as root:
ntpdate -d -u DC_hostname
Example: ntpdate -d -u sales-dc
For more information, see Diagnose NTP on Port 123.
In addition, check the logs on the domain controller for errors from the source named w32tm, which is the Windows time service.
An inaccessible trust can block you from successfully joining a domain. If you know that there are inaccessible trusts in your Active Directory network, you can set Likewise to ignore all the trusts before you try to join a domain. To do so, use the lwconfig tool to modify the values of the DomainManagerIgnoreAllTrusts setting.
First, list the available trust settings:
/opt/likewise/bin/lwconfig --list | grep -i trust
The results will look something like this. The setting at issue is DomainManagerIgnoreAllTrusts.
DomainManagerIgnoreAllTrusts DomainManagerIncludeTrustsList DomainManagerExcludeTrustsList
Second, list the details of the DomainManagerIgnoreAllTrusts setting to see the values it accepts:
[root@rhel5d bin]# ./lwconfig --details DomainManagerIgnoreAllTrusts Name: DomainManagerIgnoreAllTrusts Description: When true, ignore all trusts during domain enumeration. Type: boolean Current Value: false Accepted Values: true, false Current Value is determined by local policy.
Third, change the setting to true so that Likewise will ignore trusts when you try to join a domain.
[root@rhel5d bin]# ./lwconfig DomainManagerIgnoreAllTrusts true
Finally, check to make sure the change took effect:
[root@rhel5d bin]# ./lwconfig --show DomainManagerIgnoreAllTrusts boolean true local policy
Now try to join the domain again. If successful, keep in mind that only users and groups who are in the local domain will be able to log on the computer.
In the example output above that shows the setting's current values, local policy is listed -- meaning that the policy is managed locally through lwconfig because a Likewise Enterprise group policy is not managing the setting. Typically, with Likewise Enterprise, you would manage the DomainManagerIgnoreAllTrusts policy by using the corresponding group policy, but you cannot apply group policies to the computer until after it is added to the domain. The corresponding Likewise group policy is named Lsass: Ignore all trusts during domain enumeration. For more information on the domain manager group policies to set whitelists and blacklists for trusts, see the Group Policy Administration Guide.
For information on the arguments of lwconfig, run the following command:
/opt/likewise/bin/lwconfig --help
This section lists solutions to common errors that can occur when you try to join a domain.
Error Message:
Warning: A resumable error occurred while processing a module. Even though the configuration of 'krb5' was executed, the configuration did not fully complete. Please contact Likewise support.
Solution:
Delete /etc/krb5.conf and try to join the domain again.
This error can occur when you try to join a domain or you try to execute the domain-join command with an option but the netlogond daemon is not already running.
Error Message:
Error: chkconfig failed [code 0x00080019]
Description: An error occurred while using chkconfig to process the netlogond daemon, which must be added to the list of processes to start when the computer is rebooted.
The problem may be caused by startup scripts in the /etc/rc.d/ tree that are not LSB-compliant.
Verification: Running the following command as root can provide information about the error:
chkconfig --add netlogond
Solution: Remove startup scripts that are not LSB-compliant from the /etc/rc.d/ tree.
When you use the Likewise domain-join utility to join a Linux or Unix client to a domain, the utility might be unable to contact the domain controller on Port 123 with UDP. The Likewise agent requires that Port 123 be open on the client so that it can receive NTP data from the domain controller. In addition, the time service must be running on the domain controller.
You can diagnose NTP connectivity by executing the following command as root at the shell prompt of your Linux machine:
ntpdate -d -u DC_hostname
Example: ntpdate -d -u sales-dc
If all is well, the result should look like this:
[root@rhel44id ~]# ntpdate -d -u sales-dc 2 May 14:19:20 ntpdate[20232]: ntpdate 4.2.0a@1.1190-r Thu Apr 20 11:28:37 EDT 2006 (1) Looking for host sales-dc and service ntp host found : sales-dc.likewisedemo.com transmit(192.168.100.20) receive(192.168.100.20) transmit(192.168.100.20) receive(192.168.100.20) transmit(192.168.100.20) receive(192.168.100.20) transmit(192.168.100.20) receive(192.168.100.20) transmit(192.168.100.20) server 192.168.100.20, port 123 stratum 1, precision -6, leap 00, trust 000 refid [LOCL], delay 0.04173, dispersion 0.00182 transmitted 4, in filter 4 reference time: cbc5d3b8.b7439581 Fri, May 2 2008 10:54:00.715 originate timestamp: cbc603d8.df333333 Fri, May 2 2008 14:19:20.871 transmit timestamp: cbc603d8.dda43782 Fri, May 2 2008 14:19:20.865 filter delay: 0.04207 0.04173 0.04335 0.04178 0.00000 0.00000 0.00000 0.00000 filter offset: 0.009522 0.008734 0.007347 0.005818 0.000000 0.000000 0.000000 0.000000 delay 0.04173, dispersion 0.00182 offset 0.008734 2 May 14:19:20 ntpdate[20232]: adjust time server 192.168.100.20 offset 0.008734 sec
If the domain controller is not running NTP on Port 123, the command returns a response such as no server suitable for synchronization found, as in the following output:
5 May 16:00:41 ntpdate[8557]: ntpdate 4.2.0a@1.1190-r Thu Apr 20 11:28:37 EDT 2006 (1) Looking for host RHEL44ID and service ntp host found : rhel44id.likewisedemo.com transmit(127.0.0.1) transmit(127.0.0.1) transmit(127.0.0.1) transmit(127.0.0.1) transmit(127.0.0.1) 127.0.0.1: Server dropped: no data server 127.0.0.1, port 123 stratum 0, precision 0, leap 00, trust 000 refid [127.0.0.1], delay 0.00000, dispersion 64.00000 transmitted 4, in filter 4 reference time: 00000000.00000000 Wed, Feb 6 2036 22:28:16.000 originate timestamp: 00000000.00000000 Wed, Feb 6 2036 22:28:16.000 transmit timestamp: cbca101c.914a2b9d Mon, May 5 2008 16:00:44.567 filter delay: 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 filter offset: 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 delay 0.00000, dispersion 64.00000 offset 0.000000 5 May 16:00:45 ntpdate[8557]: no server suitable for synchronization found
Table of Contents
To quickly change an end-user setting for the Likewise agent, you can run the lwconfig command-line tool as root:
/opt/likewise/bin/lwconfig
The syntax to change the value of a setting is as follows, where setting is replaced by the registry entry that you want to change and value by the new value that you want to set:
/opt/likewise/bin/lwconfig setting value
Here's an example of how to use lwconfig to change the AssumeDefaultDomain setting:
[root@rhel5d bin]# ./lwconfig --detail AssumeDefaultDomainName: AssumeDefaultDomain Description: Apply domain name prefix to account name at logon Type: boolean Current Value: false Accepted Values: true, false Current Value is determined by local policy. [root@rhel5d bin]# ./lwconfig AssumeDefaultDomain true
[root@rhel5d bin]# ./lwconfig --show AssumeDefaultDomain
boolean true local policy
Use the | |
Set the value to | |
Use the |
To view the settings that you can change with lwconfig, execute the following command:
/opt/likewise/bin/lwconfig --list
You can also import and apply a number of settings with a single command by using the --file option combined with a text file that contains the settings that you want to change followed by the values that you want to set. Each setting-value pair must be on a single line. For example, the contents of my flat file, named newRegistryValuesFile and saved to the desktop of my Red Hat computer, looks like this:
AssumeDefaultDomain true RequireMembershipOf "likewisedemo\\support" "likewisedemo\\domain^admins" HomeDirPrefix /home/ludwig LoginShellTemplate /bash/sh
To import the file and automatically change the settings listed in the file to the new values, I would execute the following command as root:
/opt/likewise/bin/lwconfig --file /root/Desktop/newRegistryValuesFile
You can add domain users to your local groups on a Linux, Unix, and Mac OS X computer by placing an entry for the user or group in the /etc/group file. Adding an entry for an Active Directory user to your local groups can give the user local administrative rights. The entries must adhere to the following rules:
Use the correct case; entries are case sensitive.
Use a user or group's alias if the user or group has one in Active Directory.
If the user or group does not have an alias, you must set the user or group in the Likewise canonical name format of NetBIOSdomainName\SAMaccountName.
Note: For users or groups with an alias, the Likewise canonical name format is the alias, which you must use; you cannot use the format of NetBIOS domain name\SAM account name.
So, for users and groups without an alias, the form of an entry is as follows:
root:x:0:LIKEWISEDEMO\kristeva
For users and groups with an alias, the form of an entry is as follows:
root:x:0:kris
In /etc/group, the slash character separating the domain name from the account name does not typically need to be escaped.
Tip: On Ubuntu, you can give a domain user administrative privileges by adding the user to the admin group as follows:
admin:x:119:LIKEWISEDEMO\bakhtin
On a Mac OS X computer, you can AD users to a local group with Apple's directory service command-line utility: dscl. In dscl, go to the /Local/Default/Groups directory and then add users to a group by using the append command.
When you add Active Directory entries to your sudoers file -- typically, /etc/sudoers -- you must adhere to at least the following rules:
ALL must be in uppercase letters.
Use a slash character to escape the slash that separates the Active Directory domain from the user or group name.
Use the correct case; entries are case sensitive.
Use a user or group's alias if the user or group has one in Active Directory.
If the user or group does not have an alias, you must set the user or group in the Likewise canonical name format of NetBIOSdomainName\SAMaccountName (and escape the slash character).
Note: For users or groups with an alias, the Likewise canonical name format is the alias, which you must use; you cannot use the format of NetBIOS domain name\SAM account name.
So, for users and groups without an alias, the form of an entry in the sudoers file is as follows:
DOMAIN\\username
DOMAIN\\groupname
Example entry of a group:
% LIKEWISEDEMO\\LinuxFullAdmins ALL=(ALL) ALL
Example entry of a user with an alias:
kyle ALL=(ALL) ALL
For more information about how to format your sudoers file, see your computer's man page for sudo.
To determine the canonical name of a Likewise user on Linux, execute the following command, replacing the domain and user in the example with your domain and user:
getent passwd likewisedemo.com\\hab
LIKEWISEDEMO\hab:x:593495196:593494529: Jurgen Habermas:/home/local/ LIKEWISEDEMO/ hab:/bin/ sh
In the results, the user's Likewise canonical name is the first field.
Although Likewise searches a number of common locations for your sudoers file, on some platforms Likewise might not find it. In such cases, you can specify the location of your sudoers file by adding the following line to the Sudo GP Extension section of /etc/likewise/grouppolicy.conf:
SudoersSearchPath = /your/search/path
Example: SudoersSearchPath = "/opt/sfw/etc";
Here's an example in the context of the /etc/likewise/grouppolicy.conf file:
[{20D139DE-D892-419f-96E5-0C3A997CB9C4}]
Name = "Likewise Enterprise Sudo GP Extension";
DllName = "liblwisudo.so";
EnableAsynchronousProcessing = 0;
NoBackgroundPolicy = 0;
NoGPOListChanges = 1;
NoMachinePolicy = 0;
NoSlowLink = 1;
NoUserPolicy = 1;
PerUserLocalSettings = 0;
ProcessGroupPolicy = "ProcessSudoGroupPolicy";
ResetGroupPolicy = "ResetSudoGroupPolicy";
RequireSuccessfulRegistry = 1;
SudoersSearchPath = "/opt/sfw/etc";
On AIX, you can set up audit classes to monitor the activities of users who log on with their Active Directory credentials. The file named /etc/likewise/auditclasses.sample is a template that you can use to set up audit classes for AD users.
To set up an audit class, make a copy of the file, name it /etc/likewise/auditclasses, and then edit the file to specify the audit classes that you want.
After you set up audit classes for a user, the auditing will take place the next time the user logs in.
The sample Likewise auditclasses file looks like this:
# # Sample auditclasses file. # # A line with no label specifies the default audit classes for # users that are not explicitly listed: # general, files # # A line starting with a username specifies the audit classes for # that AD user. The username must be specified as the "canonical" # name for the user: either "DOMAIN\username" or just "username" # if "--assumeDefaultDomain yes" was passed to domainjoin-cli # with "--userDomainPrefix DOMAIN". In Likewise Enterprise, if # the user has an alias specified in the cell the alias name must # be used here. # DOMAIN\user1: general, files, tcpip user2: general, cron # # A line starting with an @ specifies the audit classes for members # of an AD group. These classes are added to the audit classes # for the user (or the default, if the user is not listed here). # Whether to specify "DOMAIN\groupname" or just "groupname" follows # the same rules as for users. # @DOMAIN\mail_users: mail group2: cron
For information on AIX audit classes, see the IBM documentation for your version of AIX.
Table of Contents
This chapter contains information on how to troubleshoot the Likewise agent, including the authentication service, the input-output service, and the network logon daemon.
Additional troubleshooting information is in the following chapters:
Troubleshooting Domain Join Problems
Solve Logon Problems on Linux, Unix, or Mac
Solve Logon Problems from Windows
Troubleshooting the Group Policy Agent
Monitoring Events with the Event Log
Troubleshooting the Likewise Database
Troubleshooting Samba Integration
For an overview of commands such as rpm and dpkg that can help troubleshoot Likewise packages on Linux and Unix platforms, see Package Management Commands.
The Likewise Service Manager lets you troubleshoot all the Likewise services from a single command-line utility. You can, for example, check the status of the services and start or stop them. The service manager is the preferred method for restarting a service because it automatically identifies a service's dependencies and restarts them in the right order.
To list the status of the services, run the following command with superuser privileges at the command line:
/opt/likewise/bin/lwsm list
Here's an example:
[root@rhel5d bin]# /opt/likewise/bin/lwsm list lwreg running (standalone: 1920) dcerpc running (standalone: 2544) eventlog running (standalone: 2589) lsass running (standalone: 2202) lwio running (standalone: 2191) netlogon running (standalone: 2181) npfs running (io: 2191) pvfs stopped rdr running (io: 2191) srv stopped srvsvc stopped
To restart the lsass service, run the following command with superuser privileges:
/opt/likewise/bin/lwsm restart lsass
To view all the service manager's commands and arguments, execute the following command:
/opt/likewise/bin/lwsm --help
You can check the status of the authentication daemon on a Unix or Linux computer running the Likewise agent by executing the following command at the shell prompt as the root user:
/opt/likewise/bin/lwsm status lsass
If the service is not running, execute the following command:
/opt/likewise/bin/lwsm start lsass
The Likewise DCE/RPC daemon handles communication between Likewise clients and Microsoft Active Directory.
You can check the status of dcerpcd on a Unix or Linux computer running the Likewise agent by executing the following command as the root user:
/opt/likewise/bin/lwsm status dcerpc
If the service is not running, execute the following command:
/opt/likewise/bin/lwsm start dcerpc
On a Mac OS X computer, you cannot use the status command, but you can monitor the daemon by using Activity Monitor:
In Finder, click Applications, click Utilities, and then click Activity Monitor.
In the list under Process Name, make sure dcerpcd appears. If the process does not appear in the list, you might need to start it.
To monitor the status of the process, in the list under Process Name, click the process, and then click Inspect.
The netlogond daemon detects the optimal domain controller and global catalog and caches the data.
You can check the status of netlogond on a Unix or Linux computer running the Likewise agent by executing the following command as the root user:
/opt/likewise/bin/lwsm status netlogon
If the service is not running, execute the following command:
/opt/likewise/bin/lwsm start netlogon
On a Mac OS X computer, you cannot use the status command, but you can monitor the daemon by using Activity Monitor:
In Finder, click Applications, click Utilities, and then click Activity Monitor.
In the list under Process Name, make sure netlogond appears. If the process does not appear in the list, you might need to start it.
To monitor the status of the process, in the list under Process Name, click the process, and then click Inspect.
The Likewise input-output service -- lwiod -- communicates over SMB with external SMB servers and internal processes.
You can check the status of lwiod on a Unix or Linux computer running the Likewise agent by executing the following command as the root user:
/opt/likewise/bin/lwsm status lwio
If the service is not running, execute the following command:
/opt/likewise/bin/lwsm start lwio
On a Mac OS X computer, you cannot use the status command, but you can monitor the daemon by using Activity Monitor:
In Finder, click Applications, click Utilities, and then click Activity Monitor.
In the list under Process Name, make sure lwiod appears. If the process does not appear in the list, you might need to start it.
To monitor the status of the process, in the list under Process Name, click the process, and then click Inspect.
The authentication daemon handles authentication, authorization, caching, and idmap lookups. For more information, see About the Likewise Agent.
You can restart the Likewise authentication daemon by executing the following command at the shell prompt:
/opt/likewise/bin/lwsm restart lsass
To stop the daemon, type this command:
/opt/likewise/bin/lwsm stop lsass
To start the daemon, type this command:
/opt/likewise/bin/lwsm start lsass
The Likewise DCE/RPC daemon helps route remote procedure calls between computers on a network by serving as an end-point mapper. For more information, see About the Likewise Agent.
You can restart the Likewise DCE/RPC daemon by executing the following command at the shell prompt:
/opt/likewise/bin/lwsm restart dcerpc
To stop the daemon, type this command:
/opt/likewise/bin/lwsm stop dcerpc
To start the daemon, type this command:
/opt/likewise/bin/lwsm start dcerpc
The netlogond daemon determines the optimal domain controller and global catalog and caches the data. For more information and a list of start-order dependencies, see About the Likewise Agent.
You can restart the Likewise network logon daemon by executing the following command at the shell prompt:
/opt/likewise/bin/lwsm restart netlogon
To stop the daemon, type this command:
/opt/likewise/bin/lwsm stop netlogon
To start the daemon, type this command:
/opt/likewise/bin/lwsm start netlogon
The Likewise input-output service -- lwiod -- communicates over SMB with SMB servers; authentication is with Kerberos 5.
You can restart the input-output service by executing the following command at the shell prompt:
/opt/likewise/bin/lwsm restart lwio
To stop the daemon, type this command:
/opt/likewise/bin/lwsm stop lwio
To start the daemon, type this command:
/opt/likewise/bin/lwsm start lwio
Logging can help identify and solve problems. There are debug logs for the following services in Likewise Open and Likewise Enterprise:
lsass, the authentication service. Generate a debug log for lsass when you need to troubleshoot authentication errors or failures.
PAM, the pluggable authentication modules used by Likewise. Create a debug log for PAM when you need to troubleshoot logon or authentication problems.
netlogon: Generate a debug log for netlogon, the site affinity service that detects the optimal domain controller and global catalog, when you need to troubleshoot problems with sending requests to domain controllers or getting information from the global catalog.
lwio: The input-output service that manages interprocess communication.
eventlog, the event collection service. Generate a debug log for eventlog to troubleshoot the collection and processing of security events.
lwreg, the Likewise registry service. Generate a debug log for lwreg to troubleshoot ill-fated configuration changes to the registry.
lwsm, the service manager.
The Mac OS X directory service plug-in
In addition, the following services are part of Likewise Enteprise only -- they are not relevant to troubleshooting problems with Likewise Open:
gpagent, the group policy agent. Generate a debug log for gpagent to troubleshoot the application or processing of group policy objects.
eventfwd, the event forwarding daemon. Generate a debug log to verify the service is properly receiving events and forwarding them to a collector server.
reapsysl, part of the data collection service. Capture a debug log for reapsysl to investigate the collection and processing of events.
lwsc, the smart card service. Gather logging information for the smart card service when card-insertion or card-removal behavior is other than expected.
lwpkcs11d, a daemon that aids in logging on and logging off with a smart card. Gather logging information about it when there is a problem logging on or logging off with a smart card.
The log messages are processed by syslog, typically through the daemon facility. Although the path and file name of the log vary by platform, they typically appear in a subdirectory of /var/log. Remember that when you change the log level of a Likewise service to debug, you must also add the following line to /etc/syslog.conf, save it, and then restart the syslog service by running service syslog restart at the command line:
*.debug /tmp/debug.log
Alternatively, you can use the logfile option to specify a location and name for the log file, as the procedure to generate an authentication debug log illustrates.
Log levels can be changed both temporarily and permanently. The following log levels are available for most Likewise services: debug, error, warning, info, verbose, and trace. The default is error. To troubleshoot, it is recommended that you change the level to debug. To conserve disk space, it is recommended that you set the log level back to error when you finish troubleshooting.
To temporarily change the log level, you can execute a command for the command line or you can stop the service and then start it up again, specifying the log level you want in the start command. To permanently change the log level, you must modify the service's entry in the Likewise registry.
You can quickly set the Likewise log level for the Likewise authentication daemon by executing the following command and replacing level with one of the available logging levels: error, warning, info, verbose, debug, trace.
Changing the log level on the fly is useful to isolate and capture information when a command or operation fails. If, for example, you run a command and it fails, you can change the log level and then run the command again to get information about the failure.
/opt/likewise/bin/lw-set-log-level newLevel
Example: /opt/likewise/bin/lw-set-log-level debug
When you change the log level with the lw-set-log-level command, the log level is changed only until the service or the computer restarts. You can use the following command to view the current log level of the authentication service:
/opt/likewise/bin/lw-set-log-level
Syslog messages are logged through the daemon facility. The default setting is error.
In /opt/likewise/bin, there are commands to change the log level of several other services:
Service | Logging Commands in /opt/likewise/bin |
netlogon | lwnet-get-log-info lwnet-set-log-level Example: |
Input-output | lwio-get-log-info lwio-set-log-level Example: |
Event forwarding | evtfwd-get-log-info evtfwd-set-log-level Example: |
Group policy | gp-set-log-level Example: |
System log reaper for the reporting services | rsys-get-log-info rsys-set-log-level Example: |
Debug Until the Service RestartsThe following example demonstrates how to change the log level to debug to help troubleshoot a Likewise service. The change is temporary: The service returns to the level specified in the registry when the service restarts. Although this example changes the log level for the site affinity service (netlogon), which detects the optimal domain controller and global catalog, you can use this method to change the log level for the following Likewise daemons: eventlogd, lsassd, lwiod, netlogond, gpagentd, reapsysld, eventfwdd. (See the topics on how to change the log level for the authentication service (lsass) or the group policy agent (gpagentd).)
As root, stop the site affinity service with the Likewise service manager:
/opt/likewise/bin/lwsm stop netlogon
As root, restart the site affinity daemon and specify the log level and the target log file:
/opt/likewise/sbin/netlogond --loglevel debug --logfile /tmp/netlogond.log --start-as-daemon
After you finish troubleshooting, use the kill command to stop the daemon and then start it again with the service manager to return the log level to its default:
/opt/likewise/bin/lwsm start netlogon
Note: Leaving the log level at info, debug or verbose might result in disk space issues.
The following example demonstrates how to change the log level to debug by modifying a daemon's arguments in the Likewise registry. You can modify the log level in the registry if you want to permanently change a daemon's log level or log file destination: The log level that you set persists after you restart the service or the computer.
Although the example permanently changes the log level for the authentication service, you can use this method to change the log level and log file location for the following Likewise daemons: eventlogd, lsassd, lwiod, netlogond, gpagentd, reapsysld, eventfwdd.
In the registry, the default setting for lsass looks like this, viewed here by using the registry shell's ls command combined with the path to the lsass key:
/opt/likewise/bin/lwregshell ls '[HKEY_THIS_MACHINE\Services\lsass]' [HKEY_THIS_MACHINE\Services\lsass] "Arguments"="/opt/likewise/sbin/lsassd --syslog" "Autostart"=dword:00000001 "Dependencies"="netlogon lwio lwreg rdr npfs" "Description"="Likewise Security and Authentication Subsystem" "Environment"="" "FdLimit"=dword:00000400 "Path"="/opt/likewise/sbin/lsassd" "Type"=dword:00000001
Notice that the default is logging target is syslog. You can change the value by executing the registry shell's set_value command from the command line, like this:
/opt/likewise/bin/lwregshell set_value '[HKEY_THIS_MACHINE\Services\lsass]' Arguments "/opt/likewise/sbin/lsassd --logfile /tmp/lsasslog.txt --loglevel debug"
The value of Arguments has been updated to the specified value:
/opt/likewise/bin/lwregshell ls '[HKEY_THIS_MACHINE\Services\lsass]' [HKEY_THIS_MACHINE\\Services\lsass] "Arguments" REG_SZ "/opt/likewise/sbin/lsassd --logfile /tmp/lsasslog.txt --loglevel debug" "Autostart" REG_DWORD 0x00000001 (1) "Dependencies" REG_SZ "netlogon lwio lwreg rdr npfs" "Description" REG_SZ "Likewise Security and Authentication Subsystem" "Environment" REG_SZ "" "FdLimit" REG_DWORD 0x00000400 (1024) "Path" REG_SZ "/opt/likewise/sbin/lsassd" "Type" REG_DWORD 0x00000001 (1)
After you modify a registry setting for a Likewise service, you must refresh the corresponding service with the Likewise Service Manager for the changes to take effect.
Note: Permanently changing the log level to info, debug or verbose will likely result in issues with disk space over time.
To help troubleshoot problems with joining a domain, you can use the command-line utility's logfile option with the join command. The logfile option captures information about the attempt to join the domain on the screen or in a file. When an attempt to join a domain fails, a log is generated by default at /var/log/likewise-join.log.
To display the information in the terminal, execute the following command; the dot after the logfile option denotes that the information is to be shown in the console:
domainjoin-cli --logfile . join domainName userName
To save the information in a log file, execute the following command:
domainjoin-cli --logfile path join domainName userName
Example:
domainjoin-cli --logfile /var/log/domainjoin.log join likewisedemo.com Administrator
You can specify the level of logging for the Likewise authentication daemon's interaction with PAM. Running the authentication daemon in debug mode can help troubleshoot the lookup of a user or group ID as well as help solve other authentication problems.
The following log levels are available: debug, error, warning, info, verbose, and trace. The default is error. To troubleshoot, it is recommended that you change the level to debug.
The log messages are processed by syslog. Although the path and file name of the log vary by platform, they typically appear in a subdirectory of /var/log. Alternatively, you can use the logfile option to specify a location and name for the log file, as the following procedure demonstrates:
As root, stop the authentication service.
As root, restart the authentication service and specify the log level and the target log file:
/opt/likewise/sbin/lsassd --loglevel debug --logfile /tmp/lsassd.log --start-as-daemon
After you finish troubleshooting, use the kill command to stop the daemon and then start it again with the service manager to return the log level to its default.
Note: Leaving the log level at info, debug or verbose might result in disk space issues over time.
You can set the level of reporting in the PAM debug log for the Likewise authentication daemon on a Linux or Unix computer. PAM stands for pluggable authentication modules.
The log levels are disabled, error, warning, info, and verbose. The logged data is sent to your system's syslog message repository for security and authentication. The location of the repository varies by operating system. Here are the typical locations for a few platforms:
Ubuntu: /var/log/auth.log
Red Hat: /var/log/secure
Solaris: /var/log/authlog
Mac OS X: /var/log/secure.log
The following procedure demonstrates how to change the value of the PAM key's LogLevel entry with the lwconfig command-line utility.
First, use the details option to list the values that the DomainManagerIgnoreAllTrusts setting accepts:
/opt/likewise/bin/lwconfig --details PAMLogLevel Name: PAMLogLevel Description: Configure PAM lsass logging detail level Type: string Current Value: "disabled" Acceptable Value: "disabled" Acceptable Value: "error" Acceptable Value: "warning" Acceptable Value: "info" Acceptable Value: "verbose" Current Value is determined by local policy.
Now, as root change the setting to error so that Likewise will log PAM errors:
/opt/likewise/bin/lwconfig PAMLogLevel error
Finally, confirm that the change took effect:
/opt/likewise/bin/lwconfig --show PAMLogLevel string error local policy
For more information on the arguments of lwconfig, run the following command:
/opt/likewise/bin/lwconfig --help
To troubleshoot logon failures on a Mac OS X computer, you can generate a debug-level directory service log. For information on turning on debug-level logs, see Enabling Directory Service Debug Logging on the Apple support web site.
Using the killall -USR1 command that Apple suggests, however, puts the directory service into debug logging mode for only about 5 minutes. Instead, try using the following commands:
sudo touch /Library/Preferences/DirectoryService/.DSLogDebugAtStart sudo killall DirectoryService
Reproduce the error and then scan the logs named DirectoryService.debug.log in /Library/Logs/DirectoryService. Look for messages containing the string LWEDS, which indicates that they are produced by the Likewise directory service plug-in.
Examine the logs from the time the user entered a password. If the logs suggest that there may be a networking issue, obtain a tcpdump from the time the password is entered until you notice the logon failure:
tcpdump -s0 -wnetwork.pcap
When you are done troubleshooting, turn off debug logging and restart the directory service by issuing the following commands:
sudo rm /Library/Preferences/DirectoryService/.DSLogDebugAtStart sudo killall DirectoryService
You can generate a group policy agent debug log for Likewise Enterprise by running these commands in this order as root:
/opt/likewise/bin/lwsm stop gpagent /opt/likewise/sbin/gpagentd --loglevel debug --logfile /tmp/gpagentd.log --start-as-daemon
When you are done logging the information, use the kill command to stop the service and return the log level to its default setting. Then start the group policy daemon with the Likewise service manager:
/opt/likewise/bin/lwsm start gpagent
Execute the following command in a separate session to dump network traffic as the root user and interrupt the trace with CTRL-C:
tcpdump -s 0 -i eth0 -w trace.pcap
The result should look something like this:
tcpdump: listening on eth0 28 packets received by filter 0 packets dropped by kernel
To check the version number of the Likewise agent, execute the following command:
cat /opt/likewise/data/VERSION
Another option is to execute the following command:
/opt/likewise/bin/lw-get-status
You can check the version and build number of the Likewise agent from a Windows administration workstation that is connected to your domain controller:
In Active Directory Users and Computers, right-click the Linux, Unix, or Mac computer that you want, and then click Properties.
Click the Operating System tab. The build number is shown in the Service pack box.
On Linux distributions that support RPM -- for example, Red Hat Enterprise Linux, Fedora, SUSE Linux Enterprise, OpenSUSE, and CentOS -- you can determine the version and build number of the agent (5.0.0.xxxx in the examples below) by executing the following command at the shell prompt:
rpm -qa | grep likewise
The result shows the build version after the version number:
likewise-sqlite-5.0.0-1.26353.3513 likewise-libxml2-5.0.0-1.26353.3513 likewise-netlogon-5.0.0-1.26353.3513 likewise-openldap-5.0.0-1.26353.3513 likewise-pstore-5.0.0-1.26353.3513 likewise-passwd-5.0.0-1.26353.3513 likewise-domainjoin-5.0.0-1.26353.3513 likewise-lsass-5.0.0-1.26353.3513 likewise-krb5-5.0.0-1.26353.3513 likewise-base-5.0.0-1.26353.3513 likewise-rpc-5.0.0-1.26353.3513
On Unix computers and Linux distributions that do not support RPM, the command to check the build number varies by platform:
You can determine the fully qualified domain name of a computer running Linux, Unix, or Mac OS X by executing the following command at the shell prompt:
ping -c 1 `hostname`
The command is different on HP-UX:
ping `hostname` -n 1
On Sun Solaris, you can find the FQDN by executing the following command (the computer's configuration can affect the results):
FQDN=`/ usr/lib/mail/ sh/ check-hostname|cut - d" " -f7`;echo $FQDN
See Also
If you are using local firewall settings, such as iptables, on a computer running the Likewise agent, make sure the following ports are open for outbound traffic.
Note: The Likewise agent is a client only; it does not listen on any ports.
|
Port |
Protocol |
Use |
|
53 |
UDP/ TCP |
DNS |
|
88 |
UDP/TCP |
Kerberos 5 |
|
123 |
UDP |
NTP |
|
137 |
UDP |
NetBIOS Name Service |
|
139 |
TCP |
NetBIOS Session (SMB) |
|
389 |
UDP/TCP |
LDAP |
|
445 |
TCP |
SMB over TCP |
|
464 |
UDP/TCP |
Machine password changes (typically after 30 days) |
|
3268 |
TCP |
Global Catalog search |
Tip: To view the firewall rules on a Linux computer using iptables, execute the following command:
iptables - nL
For Likewise to work correctly, the /etc/nsswitch.conf file must be readable by user, group, and world. The following symptoms indicate that you should check the permissions of nsswitch.conf:
Running the id command with an AD account as the argument (example: id likewisedemo.com\kathy) works when it is executed as root, but when the same command is executed by the AD user, it returns only a UID and GID without a name.
On HP-UX, running the whoami command with an AD user account returns “Intruder alert.”
After SSH is upgraded, run the following command as root to make sure that the sshd_config file is set up properly to work with Likewise:
domainjoin-cli configure --enable ssh
After upgrading an operating system or installing a kernel patch, you should rerun the domain-join command to make sure that the files related to the operating system, such as PAM and nsswitch, are configured properly to work with Likewise. Re-executing the domain-join command also updates the operatingSystemVersion value and the operatingSystemServicePack value in Active Directory so the Likewise reporting tool reflects the correct version numbers.
Another suggestion, nearly universal in scope, is to apply updates to test systems before you apply updates to production systems, giving you the opportunity to identify and resolve potential issues before they can affect production machines.
Likewise Enterprise is compatible with Small Business Server 2003. However, because the server locks down several user account values by default, you must create a group in Active Directory for your Unix computers, add each Likewise client computer to it, and configure the group to read all user information.
On other versions of Windows Server, the user account values are available by default. If, however, you use an AD security setting to lock them down, they will be unavailable to the Likewise agent.
To find Unix account information, the Likewise agent requires that the AD computer account for the machine running Likewise can access the attributes in the following table.
|
Attribute |
Requirement |
|
uid |
Required when you use Likewise Enterprise in schema mode. |
|
uidNumber |
Required when you use Likewise Enterprise in schema mode. |
|
gidNumber |
Required when you use Likewise Enterprise in schema mode. |
|
userAccountControl |
Required for schema mode and non-schema mode. It is also required for unprovisioned mode, which means that you have not created a Likewise cell in Active Directory, as will be the case if you are using Likewise Open. |
In Active Directory Users and Computers, create a group named Unix Computers.
Add each Likewise client computer to the group.
In the console tree, right-click the domain, choose Delegate Control, click Next, click Add, and then enter the group named Unix Computers.
Click Next, select Delegate the following common tasks, and then in the list select Read all user information.
Click Next, and then click Finish.
On the target Unix, Linux, or Mac computer, restart the Likewise agent to reinitialize the computer account’s logon to Active Directory and to get the new information about group membership.
Run /opt/likewise/lw-enum-users to verify that you can read user information.
See Also
If there is no group in a cell that can serve as the user's primary GID -- for instance, because the default primary group, domain users, has been removed from the cell -- the Likewise Settings tab for a user in ADUC will not display the user or group settings, as shown in the screen shot below. To display the settings, enable a group that the user is a member of.

When you use Likewise to set an Active Directory alias for a user, the user can have a file-ownership conflict under the following conditions if the user logs on with the AD account:
The AD alias is the same alias as the original local account name.
The home directory assigned to the user in Active Directory is the same as the local user's home directory.
The owner UID-GID of the AD account is different from that of the local account.
To avoid such conflicts, by default Likewise includes the short AD domain name in each user's home directory. If the conflict nevertheless occurs, there are two options to resolve it:
Make sure that the UID assigned to the user's AD alias is the same as that of the user's local account. See Specify a User's ID and Unix or Linux Settings.
Log on as root and use the chown command to recursively change the ownership of the local account's resources to the AD user alias.
Log on the computer as root and execute the following commands:
cd <users home directory root>
chown –R <AD user UID>:<AD primary group ID> *.*
Or: chown –R <short domain name>\\<account name>:<short domain name>\\<AD group name> *.*
See Also
Symptom: A local directory is in the home directory path and the home directory path does not match the path specified in Active Directory or in /etc/password.
Example: /home/local/DOMAIN/USER instead of /home/DOMAIN/USER
The shell might also be different from what is set in Active Directory -- for example, /bin/ksh instead of /bin/bash.
Problem: The computer is not in a Likewise cell in Active Directory.
Solution: Make sure the computer is in a Likewise cell. For more information, see Associate a Cell with an OU or a Domain, or create a default cell.
A default cell handles mapping for computers that are not in an OU with an associated cell. The default cell can contain the mapping information for all your Linux and Unix computers. For instance, a Linux or Unix computer can be a member of an OU that does not have a cell associated with it. In such a case, the home directory and shell settings are obtained from the nearest parent cell or the default cell. If there is no parent cell and no default cell, the computer will not receive its shell and home directory paths from Active Directory.
See Also
The /opt/likewise/bin/lw-get-status command shows whether the domain or the Likewise AD provider is offline. The results of the command include information useful for general troubleshooting.
/opt/likewise/bin/lw-get-status
Here's an example of the information the command returns:
[root@rhel5d bin]# /opt/likewise/bin/lw-get-status
LSA Server Status:
Compiled daemon version: 6.1.272.54796
Packaged product version: 6.1.272.54796
Uptime: 15 days 21 hours 24 minutes 1 seconds
[Authentication provider: lsa-activedirectory-provider]
Status: Online
Mode: Un-provisioned
Domain: LIKEWISEDEMO.COM
Forest: likewisedemo.com
Site: Default-First-Site-Name
Online check interval: 300 seconds
[Trusted Domains: 1]
[Domain: LIKEWISEDEMO]
DNS Domain: likewisedemo.com
Netbios name: LIKEWISEDEMO
Forest name: likewisedemo.com
Trustee DNS name:
Client site name: Default-First-Site-Name
Domain SID: S-1-5-21-3190566242-1409930201-3490955248
Domain GUID: 71c19eb5-1835-f345-ba15-0595fb5b62e3
Trust Flags: [0x000d]
[0x0001 - In forest]
[0x0004 - Tree root]
[0x0008 - Primary]
Trust type: Up Level
Trust Attributes: [0x0000]
Trust Direction: Primary Domain
Trust Mode: In my forest Trust (MFT)
Domain flags: [0x0001]
[0x0001 - Primary]
[Domain Controller (DC) Information]
DC Name: w2k3-r2.likewisedemo.com
DC Address: 192.168.92.20
DC Site: Default-First-Site-Name
DC Flags: [0x000003fd]
DC Is PDC: yes
DC is time server: yes
DC has writeable DS: yes
DC is Global Catalog: yes
DC is running KDC: yes
[Authentication provider: lsa-local-provider]
Status: Online
Mode: Local system
Domain: RHEL5D
The following Microsoft default domain policies and default domain controller policies can cause a Likewise client to fail to join a domain or to fail to enumerate trusts:
Access this computer from the network. Users and computers that interact with remote domain controllers require the access-this-computer-from-network user right. Users, computers, and service accounts can lose the user right by being removed from a security group that has been granted the right. Removing the administrators group or the authenticated users group from the policy can cause domain join to fail. Microsoft says, "There is no valid reason for removing Enterprise Domain Controllers group from this user right." For more information, see http://support.microsoft.com/kb/823659.
Deny access to this computer from the network. Including the domain computers group in the policy, for instance, causes domain-join to fail.

The symptoms of a user-right problem can include the following:
An attempt to join the domain is unsuccessful.
The Likewise authentication service, lsass, does not start.
The /opt/likewise/bin/lw-get-status command shows the domain or the AD provider as offline.
You can pin down the issue by using the ldp.exe tool to check whether you can access AD by using the machine account and machine password. Ldp.exe is typically included in the support tools (suptools.msi) for Windows and located on the Windows installation CD (Support folder, Tools subfolder). You might also be able to download the support tools that contain ldp.exe from the Microsoft web site.
To resolve a user-right issue, you can use group policy modeling in the GPMC to find the offending policy and then modify it with the GPOE.
On the Likewise client, run the /opt/likewise/bin/lw-lsa ad-get-machine password command as root to get the machine password stored in Active Directory:
/opt/likewise/bin/lw-lsa ad-get-machine password Machine Password Info: DNS Domain Name: LIKEWISEDEMO.COM NetBIOS Domain Name: LIKEWISEDEMO Domain SID: S-1-5-21-3190566242-1409930201-3490955248 SAM Account Name: RHEL5D$ FQDN: rhel5d.likewisedemo.com Join Type: 1 Key Version: 0 Last Change Time: 129401233790000000 Password: i(2H2e41F7tHN275
On a Windows administrative workstation that can connect to AD, start ldp.exe and connect to the domain. (See the LDP UI article for more information.)
In LDP, on the Connection menu, click Bind, and then use the Likewise client's SAM account name and machine password from the output of the lw-lsa ad-get-machine password command to bind to the directory.
If the attempt to bind with the machine account and the machine password fails because of invalid credentials, as shown in the LDP output below, go to the Group Policy Management Console and use group policy modeling to try to identify the policy causing the problem.

In the GPMC, run the group policy modeling tool to pinpoint the offending policy and then modify the policy to grant the correct level of user right to the computer or user. For more information, see Group Policy Modeling.
In the following screen shot, for example, the cause of the problem is that the deny-access-to-this-computer-from-the-network default domain policy contains the domain computers group.

When you turn on selective authentication for a trusted domain, Likewise can fail to look up users in the trusted domain because the machine account is not allowed to authenticate with the domain controllers in the trusted domain. Here's how to grant the machine account access to the trusted domain:
In the domain the computer is joined to, create a global group and add the computer's machine account to the group.
In the trusted domain, in Active Directory Users and Computers, select the Domain Controllers container and open Properties.
On the Security tab, click Advanced, click Add, enter the global group, and then click OK.
In the Permission Entry box, under Apply onto, select Computer objects. Under Permissions, find Allowed to Authenticate and enable it. Click OK and then click Apply in the Advanced Security Settings box.
If you have already joined the Likewise client computer to the domain, restart the Likewise authentication service:
/opt/likewise/bin/lwsm restart lsass
There are certain conditions under which you might need to clear the cache so that a user's ID is recognized on a target computer.
By default, the user's ID is cached for 4 hours. If you change a user's UID for a Likewise cell with Likewise Enterprise, during the 4 hours after you change the UID you must clear the cache on a target computer in the cell before the user can log on. If you do not clear the cache after changing the UID, the computer will find the old UID until the cache expires.
There are three Likewise Enterprise group policies that can affect the cache time:
The Cache Expiration Time, which stores UID-SID mappings, user/group enumeration lists, getgrnam() and getpwnam(), and so forth. Its default expiration time is 4 hours.
The ID Mapping Cache Expiration Time, which caches the mapping tables for SIDs, UIDs, and GIDs. Its default is 1 hour. This policy applies only to Likewise Enterprise 4.1 or earlier.
The ID Mapping Negative Cache Expiration Time, which stores failed SID-UID-GID lookups to prevent an overload of resolution requests. Its default is 5 minutes. This policy applies only to Likewise Enterprise 4.1 or earlier.
Tip: While you are deploying and testing Likewise, set the cache expiration time of the Likewise agent's cache to a short period of time, such as 1 minute.
To delete all the users and groups from the Likewise AD provider cache on a Linux or Unix computer, execute the following command with superuser privileges:
/opt/likewise/bin/lw-ad-cache --delete-all
You can also use the command to enumerate users in the cache, which may be helpful in troubleshooting. Here's an example:
[root@rhel5d bin]# ./lw-ad-cache --enum-users TotalNumUsersFound: 0 [root@rhel5d bin]# ssh likewisedemo.com\\hab@localhost Password: Last login: Tue Aug 11 15:30:05 2009 from rhel5d.likewisedemo.com [LIKEWISEDEMO\hab@rhel5d ~]$ exit logout Connection to localhost closed. [root@rhel5d bin]# ./lw-ad-cache --enum-users User info (Level-0): ==================== Name: LIKEWISEDEMO\hab Uid: 593495196 Gid: 593494529 Gecos: <null> Shell: /bin/bash Home dir: /home/LIKEWISEDEMO/hab TotalNumUsersFound: 1 [root@rhel5d bin]#
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-ad-cache --help
On a Mac OS X computer, clear the cache by running the following command with superuser privileges in Terminal:
dscacheutil -flushcache
To clear the cache when Likewise is caching credentials in its SQLite database and the entries in the cache are corrupted, use the following procedure for your type of operating system.
Stop the Likewise authentication daemon by executing the following command as root:
/opt/likewise/bin/lwsm lsass stop
Clear the AD-provider cache and the local-provider cache by removing the following two files:
rm -f /var/lib/likewise/db/lsass-adcache.db
rm -f /var/lib/likewise/db/lsass-local.db
Important: Do not delete the other .db files in the /var/lib/likewise/db directory.
Start the Likewise authentication daemon:
/opt/likewise/bin/lwsm lsass start
In Terminal, stop the Likewise authentication daemon by executing the following command as sudo:
/opt/likewise/bin/lwsm lsass stop
Clear the AD-provider cache and the local-provider cache by removing the following two files:
sudo rm -f /var/lib/likewise/db/lsass-adcache.db
sudo rm -f /var/lib/likewise/db/lsass-local.db
Important: Do not delete the other .db files in the /var/lib/likewise/db directory.
Restart the Likewise authentication daemon:
/opt/likewise/bin/lwsm lsass start
Stop the Likewise authentication daemon by executing the following command as root:
/opt/likewise/bin/lwsm stop lsass
Clear the AD-provider cache and the local-provider cache by removing the following two files:
rm -f /var/lib/likewise/db/lsass-adcache.db
rm -f /var/lib/likewise/db/lsass-local.db
Important: Do not delete the other .db files in the /var/lib/likewise/db directory.
Start the Likewise authentication daemon:
/opt/likewise/bin/lwsm start lsass
The following resources can help troubleshoot time synchronization and other Kerberos issues:
Kerberos Authentication Tools and Settings:
Authentication Errors Caused by Unsynchronized Clocks:
Kerberos Technical Supplement for Windows:
The Kerberos Network Authentication Service (V5) RFC:
Troubleshooting Kerberos Errors:
http:// www.microsoft.com/technet/prodtechnol/windowsserver2003/technologies/security/tkerberr.mspx
Kerberos and LDAP Troubleshooting Tips:
When an AD machine account password changes two or more times during the lifetime of a domain user's credentials, the computer's entry that matches the Kerberos service ticket is dropped from the Kerberos key table. Even though the service ticket has not expired, an action that depends on the entry, such as reading the event log or using single sign-on, will fail.
To avoid issues with Kerberos key tables, keytabs, and single sign-on, the machine password expiration time must be at least twice the maximum lifetime for user tickets, plus a little more time to account for the permitted clock skew.
The expiration time for a user ticket is set by using an Active Directory group policy called Maximum lifetime for user ticket. The default user ticket lifetime is 10 hours; the default Likewise machine password lifetime is 30 days.
The machine account password can change more frequently than the user's AD credentials under the following conditions:
Joining a domain two or more times.
Setting the expiration time of the machine account password group policy to be less than twice the maximum lifetime of user tickets. For more information, see Set the Machine Account Password Expiration Time.
Setting the local machine-password-lifespan for the lsass service in the Likewise registry to be less than twice the maximum lifetime for user tickets.
If a computer's entry is dropped from the Kerberos key table, you must remove the unexpired service tickets from the user’s credentials cache by reinitializing the cache. Here's how:
On Linux and Unix, reinitialize the credentials cache by executing the following command with the account of the user who is having the problem:
/opt/likewise/bin/kinit
On Mac, you must run both the native kinit command and the Likewise kinit command with the account of the user who is having the problem. (You must run both commands because the native ssh client uses the native credentials cache while the Likewise processes, such as those that access the event log, use the MIT credentials cache.)
/opt/likewise/bin/kinit
kinit
When you are working in a network with a disjoint namespace in which the Active Directory domain name is different from the DNS domain suffix for computers, you may need to modify the domain_realm section of /etc/krb5.conf on your target computer even though your DNS A and PTR records are correct for both DNS domains and can be found both ways.
The following error, in particular, indicates that you might have to modify your krb5.conf file before single sign-on (with SSH, for example) will work:
KRB ERROR BAD OPTION
Assume your computer's Active Directory domain is bluesky.likewisedemo.com
and your computer's FQDN is somehostname.green.likewisedemo.com and you have already created the following entries in DNS:
_kerberos._tcp.green.likewisedemo.com 0 100 389 ad2.bluesky.likewisedemo.com _kerberos._udp.green.likewisedemo.com 0 100 389 ad2.bluesky.likewisedemo.com
Meantime, on the target computer, the [domain_realm] entry of your /etc/krb5.conf file looks like this:
[domain_realm] .bluesky.likewisedemo.com = BLUESKY.LIKEWISEDEMO.COM bluesky.likewisedemo.com = BLUESKY.LIKEWISEDEMO.COM
To resolve the error, add the following two lines to the [domain_realm] entry of your /etc/krb5.conf file:
.green.likewisedemo.com = BLUESKY.LIKEWISEDEMO.COM green.likewisedemo.com = BLUESKY.LIKEWISEDEMO.COM
After adding the two lines above, the complete [domain_realm] entry now looks like this:
[domain_realm] .bluesky.likewisedemo.com = BLUESKY.LIKEWISEDEMO.COM bluesky.likewisedemo.com = BLUESKY.LIKEWISEDEMO.COM .green.likewisedemo.com = BLUESKY.LIKEWISEDEMO.COM green.likewisedemo.com = BLUESKY.LIKEWISEDEMO.COM
Finally, make sure that you have a correct .k5login file and then try to log on again.
If connectivity to your DNS servers is tenuous or becomes unavailable, name resolution can time out, delaying the logon process. Because Active Directory is heavily dependent on a well-functioning DNS system, you should work to resolve your DNS issues.
If you cannot fix your DNS system, however, you can as a last resort set up a caching-forwarding name server on the Likewise client to eliminate the logon delay. For instance, you can set up a BIND server on each Linux or Unix computer on which you are running Likewise. Then you can configure BIND as a local caching resolver and add your nameserver addresses to the forwarder list, leaving /etc/resolv.conf with only the local loopback address:
search likewisedemo.com nameserver 127.0.0.1
For instructions on how to set up BIND, see the BIND documentation.
For instructions on how to generate a PAM debug log, see the section on Logging.
After leaving the screen saver on a Gnome desktop that is running the Gnome Display Manager, or GDM, you might see a pop-up notification saying that network authentication is required or that network credentials are required. You can ignore the notification. The GDM process that tracks the expiration time of a Kerberos TGT might not recognize the updated expiration time of a Kerberos TGT after it is refreshed by Likewise.
By default, the configuration file for PAM system authentication – /etc/pam.d/system-auth – on Red Hat Enterprise Linux 5 and CentOS 5 contains the following line, which blocks a user with a UID value less than or equal to 500 from logging on to a computer running the Likewise agent. The symptom is a login failure with a never-ending password prompt.
auth requisite pam_succeed_if.so uid >= 500 quiet
Solution: Either delete the line from /etc/pam.d/system-auth or modify it to allow users with UIDs lower than 500:
auth requisite pam_succeed_if.so uid >= 50 quiet
For more information on the PAM test of account characteristics, see http://www.kernel.org/pub/linux/libs/pam/Linux-PAM-html/sag-pam_succeed_if.html.
SUSE Linux Enterprise Desktop 11 includes Likewise Enterprise. When a user gains access to SLED 11 through Nomad -- a remote desktop using RDP protocol with session management -- the default home directory specified in /lib/security/pam_lsass.so is ignored. To correct the issue, change /etc/pam.d/xrdp-sesman to include the following line:
session sufficient /lib/security/pam_lsass.so
SUSE Linux Enterprise Desktop 11 includes Likewise Enterprise. Novell has issued a PAM update (pam-config-0.68-1.22) for SLED 11 that modifies the common-session-pc file to include the following entry:
session optional pam_gnome_keyring.so auto_start_if=gdm
Because the PAM update makes a backup of the file and replaces it with the modified version, the changes that Likewise had made to the file are no longer present, which blocks new AD users from logging on. The following error messages may appear:
Could not update ICEauthority file /home/john/.ICEauthority There is a problem with the configuration server. (/user/lib/gconf/2/gconf-sanity-check-2 exited with status 256)
Solution: After you update PAM, run the following command as root:
/opt/likewise/bin/domainjoin-cli configure --enable pam
Or, you can make the changes manually: Open the backed up version of the common-session-pc file, add the following line to it, and then use it to overwrite the new version of the common-session-pc file:
session optional pam_gnome_keyring.so auto_start_if=gdm
By default, AIX is not configured to support long user and group names, which might present a conflict when you try to log on with a long Active Directory username. On AIX 5.3 and AIX 6.1, the symptom is that group names, when enumerated through the groups command, are truncated.
To increase the max username length on AIX 5.3, use the following syntax:
# chdev -l sys0 -a max_logname=MaxUserNameLength+1
Example:
# chdev -l sys0 -a max_logname=255
This command allocates 254 characters for the user and 1 for the terminating null.
The safest value to which you can set max_logname is 255.
You must reboot for the changes to take effect:
# shutdown –Fr
Note: AIX 5.2 does not support increasing the maximum user name length.
When you update AIX, the authentication of users, groups, and computers might fail because the AIX upgrade process overwrites changes that Likewise makes to system files.
Specifically, upgrading AIX to version 6.1tl3 overwrites /lib/security/methods.cfg, so you must manually add the following code to the last lines of the file after you finish upgrading:
LSASS: program = /usr/lib/security/LSASS
To locate the Likewise service manager process on a Mac OS X computer, execute the following command in Terminal:
sudo launchctl list | grep likewise
On a Mac computer, the name of the daemon for the service manager is as follows:
com.likewisesoftware.lwsmd
On FreeBSD, user names that are longer than 16 characters, including the domain name, exceed the FreeBSD username length limit. Attempts to connect by ssh, for example, to a FreeBSD computer with a user name that exceeds the limit can result in the following notification:
bvt-fbs72-64# ssh testuser1@localhost Password: Connection to localhost closed by remote host. Connection to localhost closed.
The log for sshd, meanwhile, might show an error that looks something like this:
Oct 7 18:22:57 vermont02 sshd[66387]: setlogin(LIKEWISEDEMO\adm.kathy): Invalid argument Oct 7 18:25:02 vermont02 sshd[66521]: setlogin(LIKEWISEDEMO\adm.kathy): Invalid argument
Although testuser1 is less than 16 characters, when you use the id command to check the account,
something longer than 16 characters is returned:
[root@bvt-fbs72-64 /home/testuser]# id testuser1 uid=1100(BVT-FBS72-64\testuser1) gid=1801(BVT-FBS72-64\testgrp) groups=1801(BVT-FBS72-64\testgrp)
The result of the id command exceeds the FreeBSD username length limit.
There are several solutions: set the default domain, change the user name to 16 characters or less, or with Likewise Enterprise use aliases. Keep in mind, though, that aliases will not solve the problem in relation to the Likewise local provider.
If you are investigating a process that is crashing on Solaris 10 or Solaris Sparc 10, but a core dump is not being generated, it's probably because per-process core dumps are turned off. You can use the coreadm command to manage the core dumps. The settings are saved in the /etc/coreadm.conf file.
A configuration for core dumps with the per-process option turned off looks like this:
# coreadm
global core file pattern:
global core file content: default
init core file pattern: core
init core file content: default
global core dumps: disabled
per-process core dumps: disabled
global setid core dumps: disabled
per-process setid core dumps: disabled
global core dump logging: disabled
You'll need per-process core dumps, though, to troubleshoot a process that is terminating unexpectedly. To turn on core dumps for a process, execute the following command as root:
coreadm -e process
For more information, see Core Dump Management on the Solaris OS and the man page for coreadm.
Table of Contents
This chapter presents an overview of the commands in /opt/likewise/bin. Most of the commands are intended to be run as root. Additional troubleshooting information, some of which involves command-line utilities, is in Troubleshooting the Agent.
The group policy commands for Likewise Enterprise are not included in this chapter; they are in Troubleshooting the Group Policy Agent. The commands for managing the event log are in Monitoring Events with the Event Log.
For an overview of commands such as rpm and dpkg that can help you manage Likewise on Linux and Unix platforms, see Package Management Commands.
The Likewise Service Manager lets you track and troubleshoot all the Likewise services with a single command-line utility. You can, for instance, check the status of the services and start or stop them. The service manager is the preferred method for restarting a service because it automatically identifies a service's dependencies and restarts them in the right order. In addition, you can use the service manager to set the logging destination and the log level.
To list the status of the services, run the following command with superuser privileges at the command line:
/opt/likewise/bin/lwsm list
Example:
[root@rhel5d bin]# /opt/likewise/bin/lwsm list lwreg running (standalone: 1920) dcerpc running (standalone: 2544) eventlog running (standalone: 2589) lsass running (standalone: 2202) lwio running (standalone: 2191) netlogon running (standalone: 2181) npfs running (io: 2191) pvfs stopped rdr running (io: 2191) srv stopped srvsvc stopped
To restart the lsass service, run the following command with superuser privileges:
/opt/likewise/bin/lwsm restart lsass
After you change a setting in the registry, you must use the service manager to force the service to begin using the new configuration by executing the following command with super-user privileges. This example refreshes the lsass service:
/opt/likewise/bin/lwsm refresh lsass
To view information about the lsass service, including its dependencies, run the following command:
/opt/likewise/bin/lwsm info lsass
Example:
[root@rhel5d bin]# /opt/likewise/bin/lwsm info lsass Service: lsass Description: Likewise Security and Authentication Subsystem Type: executable Autostart: no Path: /opt/likewise/sbin/lsassd Arguments: '/opt/likewise/sbin/lsassd' '--syslog' Dependencies: netlogon lwio lwreg rdr npfs
To view all the service manager's commands and arguments, run the following command:
/opt/likewise/bin/lwsm --help
To quickly change an end-user setting in the registry for the Likewise agent, you can run the lwconfig command-line tool as root:
/opt/likewise/bin/lwconfig
For more information, see Modify Settings with the lwconfig Tool.
You can access and modify the Likewise registry by using the registry shell -- lwregshell. The shell works in a way that is similar to BASH. You can view a list of the commands that you can execute in the shell by entering help:
/opt/likewise/bin/lwregshell \> help
You can also manage the registry by executing the registry's commands from the command line. For more information, see Configuring the Likewise Services with the Registry.
Executing the following command exports the contents of the Likewise registry to the editor specified by your EDITOR environment variable. You can use the lw-edit-reg command to quickly view the contents of the registry and make changes to the settings. Then, you can launch the registry shell and import the modified file so that your changes take effect.
/opt/likewise/bin/lw-edit-reg
If you have not set a default editor, the script searches for an available editor in the following order: gedit, vi, friends, emacs.
On platforms without gedit, an error may occur. You can correct the error by setting the EDITOR environment variable to an available editor, such as vi:
export EDITOR=vi
You can set the Likewise log level for the Likewise authentication daemon by executing the following command and replacing level with one of the available logging levels: error, warning, info, verbose, debug, trace.
/opt/likewise/bin/lw-set-log-level level
Example: /opt/likewise/bin/lw-set-log-level debug
The log level is changed only until the authentication service (lsass) or the computer restarts. Syslog messages are logged through the daemon facility. The default setting is error.
After you change the hostname of a computer, you must also change the name in the Likewise local provider database so that the local Likewise accounts use the correct prefix. To do so, execute the following command as root, replacing hostName with the name that you want:
/opt/likewise/bin/lw-set-machine-name hostName
On a Unix or Linux computer that is joined to an Active Directory domain, you can check a domain user's or group's information by either name or ID. These commands can verify that the client can locate the user or group in Active Directory.
Execute the following command, replacing domain\\username with the full domain user name or the single domain user name of the user that you want to check:
/opt/likewise/bin/lw-find-user-by-name domain\\username
Example: /opt/likewise/bin/lw-find-user-by-name likewisedemo\\hab
You can optionally specify the level of detail of information that is returned. Example:
/opt/likewise/bin/lw-find-user-by-name --level 2 likewisedemo\\hab User info (Level-2): ==================== Name: LIKEWISEDEMO\hab UPN: hab@likewisedemo.com Uid: 593495196 Gid: 593494529 Gecos: Jurgen Habermas Shell: /bin/sh Home dir: /home/LIKEWISEDEMO/hab LMHash length: 0 NTHash length: 0 Local User: NO Account disabled: FALSE Account Expired: FALSE Account Locked: FALSE Password never expires: TRUE Password Expired: FALSE Prompt for password change: YES
For more information, execute the following command:
/opt/likewise/bin/lw-find-user-by-name --help
To find a user by UID, execute the following command, replacing UID with the user's ID:
/opt/likewise/bin/lw-find-user-by-id UID
Example:
/opt/likewise/bin/lw-find-user-by-id 593495196
/opt/likewise/bin/lw-find-group-by-name domain\\username
Example:
/opt/likewise/bin/lw-find-group-by-name likewisedemo.com\\dnsadmins
/opt/likewise/bin/lw-find-group-by-id GID
Example:
[root@rhel4d bin]# /opt/likewise/bin/lw-find-group-by-id 593494534 Group info (Level-0): ==================== Name: LIKEWISEDEMO\schema^admins Gid: 593494534 SID: S-1-5-21-382349973-3885793314-468868962-518
Tip: To view this command's options, type the following command:
/opt/likewise/bin/lw-find-group-by-id --help
On a Linux, Unix, or Mac OS X computer that is joined to a domain, you can find a user in Active Directory by his or her security identifier (SID). To find a user by SID, execute the following command as root, replacing SID with the user's security identifier:
/opt/likewise/bin/lw-find-by-sid SID
Example:
[root@rhel4d bin]# /opt/likewise/bin/lw-find-by-sid S-1-5-21-382349973-3885793314-468868962-1180 User info (Level-0): ==================== Name: LIKEWISEDEMO\hab SID: S-1-5-21-382349973-3885793314-468868962-1180 Uid: 593495196 Gid: 593494529 Gecos: Jurgen Habermas Shell: /bin/ sh Home dir: /home/ LIKEWISEDEMO/ hab
Tip: To view the command's options, type the following command:
/opt/likewise/bin/lw-find-by-sid --help
To find the groups that a user is a member of, execute the following command followed by either the user's name or UID:
/opt/likewise/bin/lw-list-groups-for-user
Example: /opt/likewise/bin/lw-list-groups-for-user 593495196
Here's the command and its result for the user likewisedemo\\hab:
[root@rhel5d bin]# ./lw-list-groups-for-user likewisedemo\\hab Number of groups found for user 'likewisedemo\hab' : 2 Group[1 of 2] name = LIKEWISEDEMO\enterprise^admins (gid = 593494535) Group[2 of 2] name = LIKEWISEDEMO\domain^users (gid = 593494529)
Tip: To view this command's options, type the following command:
/opt/likewise/bin/lw-list-groups-for-user --help
On a Linux, Unix, or Mac OS X computer that is joined to a domain, you can enumerate the groups in Active Directory and view their members, GIDs, and SIDs:
/opt/likewise/bin/lw-enum-groups --level 1
The Likewise agent enumerates groups in the primary domain. Groups in trusted domains and linked cells are not enumerated. NSS membership settings in the registry do not affect the result of the command.
Tip: To view the command's options, type the following command:
/opt/likewise/bin/lw-enum-groups --help
On a Linux, Unix, or Mac OS X computer that is joined to a domain, you can enumerate the users in Active Directory and view their members, GIDs, and SIDs:
/opt/likewise/bin/lw-enum-users
The Likewise agent enumerates users in the primary domain. Users in trusted domains and linked cells are not enumerated. NSS membership settings in the registry do not affect the result of the command.
Tip: To view the command's options, type the following command:
/opt/likewise/bin/lw-enum-users --help
To view full information about the users, include the level option when you execute the command:
/opt/likewise/bin/lw-enum-users --level 2
Example result for a one-user batch:
User info (Level-2): ==================== Name: LIKEWISEDEMO\sduval UPN: SDUVAL@LIKEWISEDEMO.COM Generated UPN: NO Uid: 593495151 Gid: 593494529 Gecos: Shelley Duval Shell: /bin/sh Home dir: /home/LIKEWISEDEMO/sduval LMHash length: 0 NTHash length: 0 Local User: NO Account disabled: FALSE Account Expired: FALSE Account Locked: FALSE Password never expires: FALSE Password Expired: FALSE Prompt for password change: NO
Likewise includes two authentication providers:
A local provider
An Active Directory provider
If the AD provider is offline, you will be unable to log on with your AD credentials. To check the status of the authentication providers, execute the following command as root:
/opt/likewise/bin/lw-get-status
A healthy result should look like this:
LSA Server Status:
Agent version: 5.4.0
Uptime: 22 days 21 hours 16 minutes 29 seconds
[Authentication provider: lsa-local-provider]
Status: Online
Mode: Local system
[Authentication provider: lsa-activedirectory-provider]
Status: Online
Mode: Un-provisioned
Domain: likewisedemo.com
Forest: likewisedemo.com
Site: Default-First-Site-Name
An unhealthy result will not include the AD authentication provider or will indicate that it is offline. If the AD authentication provider is not listed in the results, restart the authentication daemon.
If the result looks like the line below, check the status of the Likewise daemons to make sure they are running.
Failed to query status from LSA service. The LSASS server is not responding.
To check the status of the daemons, run the following command as root:
/opt/likewise/bin/lwsm list
This command retrieves the Active Directory domain to which the computer is connected. The command's location is as follows:
/opt/likewise/bin/lw-lsa ad-get-machine account
This command lists the domain controllers for a target domain. You can delimit the list in several ways, including by site. The command's location is as follows:
/opt/likewise/bin/lw-get-dc-list
Example usage:
[root@rhel5d bin]# ./lw-get-dc-list likewisedemo.com Got 1 DCs: =========== DC 1: Name = 'steveh-dc.likewisedemo.com', Address = '192.168.100.132'
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-get-dc-list --help
This command displays the name of the current domain controller for the domain you specify. The command can help you select a domain controller. The command's location is as follows:
/opt/likewise/bin/lw-get-dc-name DomainName
To select a domain controller, run the following command as root until the domain controller you want is displayed. Replace DomainName with the name of your domain:
/opt/likewise/bin/lw-get-dc-name DomainName --force
This command displays the time of the current domain controller for the domain that you specify. The command can help you determine whether there is a Kerberos time-skew error between a Likewise client and a domain controller. The command's location is as follows:
/opt/likewise/bin/lw-get-dc-time
Example:
[root@rhel5d bin]# ./lw-get-dc-time likewisedemo.com DC TIME: 2009-09-08 14:54:18 PDT
This command displays the logging status of the Likewise authentication service. The location of the command is as follows:
/opt/likewise/bin/lw-get-log-info
Example output:
[root@rhel5d bin]# ./lw-get-log-info Current log settings: ================= LSA Server is logging to syslog Maximum allowed log level: error
This command displays local security events from the Likewise event log. For information about using the log, see Monitoring Events. The location of the command is as follows:
/opt/likewise/bin/lw-get-metrics
Example output:
[root@rhel5d bin]# ./lw-get-metrics Failed authentications: 3 Failed user lookups by name: 34 Failed user lookups by id: 0 Failed group lookups by name: 0 Failed group lookups by id: 0 Failed session opens: 32 Failed session closures: 33 Failed password changes: 0 Unauthorized access attempts: 0
To view the command's options, execute the following command:
/opt/likewise/bin/lw-get-metrics --help
You can print out the machine account name, machine account password, SID, and other information by running the following command as root.
/opt/likewise/bin/lw-lsa ad-get-machine account domainDNSName
Example: /opt/likewise/bin/lw-lsa ad-get-machine account likewisedemo.com
After you change a setting in the registry for the Likewise agent, you must force the agent to load the change by executing the following command with super-user privileges:
/opt/likewise/bin/lw-refresh-configuration
This command turns on trace markers in the messages logged by the lwiod and
lsassd daemons. You can use the command to obtain more debugging information than that provided by the log level for debugging.
/opt/likewise/bin/lw-lsa trace-info
Example usage:
/opt/likewise/bin/lw-lsa trace-info --set user-group-queries:0,authentication:1 --get user-group-administration
To view this command's options, type the following command:
/opt/likewise/bin/lw-lsa trace-info --help
This command registers an IP address for the computer in DNS. The command is useful when you want to register A and PTR records for your computer and the DHCP server is not registering them.
/opt/likewise/bin/lw-update-dns
Here's an example of how to use it to register an IP address:
/opt/likewise/bin/lw-update-dns --ipaddress 192.168.100.4 --fqdn corp.likewisedemo.com
If your system has multiple NICs and you are trying to register all their IP addresses in DNS, run the command once with multiple instances of the ipaddress option:
/opt/likewise/bin/lw-update-dns --fqdn corp.likewisedemo.com --ipaddress 192.168.100.4 --ipaddress 192.168.100.7 --ipaddress 192.168.100.9
To troubleshoot, you can add the loglevel option with the debug parameter to the command:
/opt/likewise/bin/lw-update-dns --loglevel debug --fqdn corp.likewisedemo.com --ipaddress 192.168.100.4 --ipaddress 192.168.100.7
For more information on the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-update-dns --help
This command manages the Likewise cache for Active Directory users and groups on Linux and Unix computers. The command's location is as follows:
/opt/likewise/bin/lw-ad-cache
You can use the command to clear the cache. The command's arguments can delete from the cache a user, a group, or all users and groups. The following example demonstrates how to delete all the users and groups from the cache:
/opt/likewise/bin/lw-ad-cache --delete-all
Tip: To reclaim disk space from SQLite after you clear the cache when you are using the non-default SQLite caching option, execute the following command as root, replacing fqdn with your fully qualified domain name:
/opt/likewise/bin/sqlite3 /var/lib/likewise/db/lsass-adcache.db.fqdn vacuum
You can also use the lw-ad-cache command to enumerate users in the cache, which may be helpful in troubleshooting. Example:
[root@rhel5d bin]# ./lw-ad-cache --enum-users TotalNumUsersFound: 0 [root@rhel5d bin]# ssh likewisedemo.com\\hab@localhost Password: Last login: Tue Aug 11 15:30:05 2009 from rhel5d.likewisedemo.com [LIKEWISEDEMO\hab@rhel5d ~]$ exit logout Connection to localhost closed. [root@rhel5d bin]# ./lw-ad-cache --enum-users User info (Level-0): ==================== Name: LIKEWISEDEMO\hab Uid: 593495196 Gid: 593494529 Gecos: <null> Shell: /bin/bash Home dir: /home/LIKEWISEDEMO/hab TotalNumUsersFound: 1 [root@rhel5d bin]#
To view all the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-ad-cache --help
On a Mac OS X computer, clear the cache by running the following command with superuser privileges in Terminal:
dscacheutil -flushcache
domainjoin-cli is the command-line utility for joining or leaving a domain. For instructions on how to use it, see Join Active Directory with the Command Line.
This command is the Likewise NIS ypcat function for group passwd and netgroup maps.
/opt/likewise/bin/lw-ypcat
Example usage:
/opt/likewise/bin/lw-ypcat -d likewisedemo.com -k map-name
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-ypcat --help
This command is the Likewise NIS ypmatch function for group passwd and netgroup maps.
/opt/likewise/bin/lw-ypmatch
Example usage:
/opt/likewise/bin/lw-ypmatch -d likewisedemo.com -k key-name map-name
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-ypmatch --help
Likewise Enterprise includes a tool to modify objects in Active Directory from the command line of a Linux, Unix, or Mac OS X computer. Located at /opt/likewise/bin/lw-adtool, the tool has two interrelated functions:
Query and modify objects in Active Directory.
Find and manage objects in Likewise cells.
You can view a list of these two categories by executing the following command:
/opt/likewise/bin/lw-adtool --help -a
Here's what the ouput of the command looks like:
[root@rhel5d bin]# ./lw-adtool --help -a List of Actions Generic Active Directory actions: -------------------------------- add-to-group - add a domain user/group to a security group. delete-object - delete an object. disable-user - disable a user account in Active Directory. enable-user - enable a user account in Active Directory. lookup-object - retrieve object attributes. move-object - move/rename an object. new-computer - create a new computer object. new-group - create a new global security group. new-ou - create a new organizational unit. new-user - create a new user account. remove-from-group - remove a user/group from a security group. reset-user-password - reset user's password. search-computer - search for computer objects, print DNs. search-group - search for group objects, print DNs. search-object - search for any type of objects using LDAP filter. search-ou - search for organizational units, print DNs search-user - search for users, print DNs. Likewise cell management actions: -------------------------------- add-to-cell - add user/group to a Likewise cell. delete-cell - delete a Likewise cell. edit-cell - modify Likewise cell properties. edit-cell-group - modify properties of a cell's group. edit-cell-user - modify properties of a cell's user. link-cell - link Likewise cells. lookup-cell - retrieve Likewise cell properties. lookup-cell-group - retrieve properties of cell's group. lookup-cell-user - retrieve properties of cell's user. new-cell - create a new Likewise cell. remove-from-cell - remove user/group from a Likewise cell. search-cells - search for Likewise cells. unlink-cell - unlink Likewise cells.
To get information about the options for each action, use the following syntax:
/opt/likewise/bin/lw-adtool --help -a <ACTION>
Here's an example with the information that is returned:
/opt/likewise/bin/lw-adtool --help -a new-user
Usage: lw-adtool [OPTIONS] (-a |--action) new-user <ARGUMENTS>
new-user - create a new user account.
Acceptable arguments ([X] - required):
--dn=STRING DN/RDN of the parent container/OU containing the
user. (use '-' for stdin input)
--cn=STRING Common name (CN) of the new user. (use '-' for
stdin input)
--logon-name=STRING Logon name of the new user. (use '-' for stdin
input) [X]
--pre-win-2000-name=STRING Pre Windows-2000 logon name.
--first-name=STRING First name of the new user.
--last-name=STRING Last name of the new user.
--description=STRING Description of the user.
--password=STRING User's password. (use '-' for stdin input)
--no-password-expires The password never expires. If omitted - user
must change password on next logon.
--account-enabled User account will be enabled. By default it is
disabled on creation
Privileges: When you run the tool, you must use an Active Directory account with privileges that allow you to perform the command's action. The level of privileges that you need is set by Microsoft Active Directory and is typically the same as performing the corresponding action in Microsoft Active Directory Users and Computers. For example, to add a user to a security group, you must be a member of a security group, such as the enterprise administrators security group, that has privileges to perform the action.
For more information on Active Directory privileges, permissions, and security groups, see the following references on the Microsoft Technet web site: Active Directory Privileges, Active Directory object permissions, Active Directory Users, Computers, and Groups, Securing Active Directory Administrative Groups and Accounts.
Options There are short and long options. You separate arguments from options with either space or equal sign. If you are not sure about the results of an action you want to execute, run it in read-only mode first (-r). Also it can be useful to set log level to TRACE (-l 5) to see all the execution steps the tool is taking. Authentication SSO by default if the machine is domain-joined. Otherwise, KRB5 via a cached ticket, keytab file, or name/password (unless secure authentication is turned-off (--no-sec)) Name resolution In most cases you can reference objects by FQDN, RDN, UPN, or just names that make sense for a specific action. Use “-“ if you want the tool to read values from stdin. This allows you to combine commands via pipes, e.g. search and lookup actions. Multi-forest support You can reference object from a name context (forest) different from the one you are currently connected to, provided that there is a proper trust relation between them. In this way, for instance, you can add a user that lives in one forest to a cell defined in another forest.
Creating a New Cell: When you create a new cell, the tool adds the default primary group (domain users) to the cell. If you are adding a user to the cell and the user has a primary group different from the default group, which is an atypical case, you must add the primary group to the cell, too. The tool does not do it automatically.
Adding Users or Groups Across Domains: If you are adding a user or group to a cell, and the user or group is in a domain different from the one hosting the cell, you must use an account that has write permissions in the cell domain and at least read permissions in the domain hosting the user or group. If, for example, you want to add a user such as CORP\kathy, whose primary group is, say, domain users, to a cell in a domain named CORPQA, two conditions must be met: First, you must be authenticated to the CORPQA domain as a user with administrative rights in the CORPQA domain; second, your user account must exist in the CORP domain with at least read permissions for the CORP domain. Further: Since in this example the primary group of CORP\kathy is CORP\domain users, you must add CORP\domain users to the cell in the CORPQA domain, too.
Automating Commands with a Service Account: To run the tool under a service account, such as a cron job, avoid using krb5 tickets for authentication, especially those cached by the Likewise authentication service in the /tmp directory. The tickets may expire and the tool will not renew them. Instead, it is recommended that you create an entry for the service account in a keytab file and use the keytab file for authentication.
Working with a Default Cell: The tool uses the default cell only when the value of the dn parameter is the root naming context, such as when you use an expression like --dn DC=corp,DC=likewise,DC=com to represent corp.likewise.com.
To view the tool's options and to see examples of how to use them, execute the following command:
/opt/likewise/bin/lw-adtool --help
[root@rhel5d bin]# ./lw-adtool --help
Usage: lw-adtool [OPTIONS] <ACTION> [ACTION_ARGUMENTS]
HELP OPTIONS
-u, --usage Display brief usage message
-?, --help Show this message, help on all actions (-a), or help
on a specific action (-a <ACTION>).
-v, --version Print program version and exit.
COMMON OPTIONS
-l, --log-level=LOG_LEVEL Acceptable values: 1 (error), 2(warning), 3(info),
4(verbose) 5 (trace) (Default: warning).
-q, --quiet Suppress printing to stdout. Just set the return code.
print-dn option makes an exception.
-t, --print-dn Print DNs of the objects to be looked up, modified or
searched for.
-r, --read-only Do not actually modify directory objects when
executing actions.
CONNECTION OPTIONS
-s, --server=STRING Active Directory server to connect to.
-d, --domain=STRING Domain to connect to.
-p, --port=INT TCP port number
-m, --non-schema Turn off schema mode
AUTHENTICATION OPTIONS
-n, --logon-as=STRING User name or UPN.
-x, --passwd=STRING Password for authentication. (use '-' for stdin input)
-k, --keytab=STRING Full path of keytab file, e.g. /etc/krb5.keytab
-c, --krb5cc=STRING Full path of krb5 ticket cache file, e.g.
/tmp/krb5cc_foo@likewisedemo.com
-z, --no-sec Turns off secure authentication. Simple bind will be
used. Use with caution!
ACTION
-a, --action[=<ACTION>] Action to execute. Type '--help -a' for a list of
actions, or '--help -a <ACTION>' for information on a
specific action.
Try '--help -a' for a list of actions.
In some of the examples below, the command is broken into two lines and the line break is marked by a back slash (\). In such cases, the back slash is not part of the command.
Create OU in a root naming context: lw-adtool -a new-ou --dn OU=TestOu Create OU in DC=department,DC=company,DC=com: lw-adtool -a new-ou --dn OU=TestOu,DC=department,DC=company,DC=com Create Likewise cell in OU TestOU setting the default login shell property to /bin/ksh: lw-adtool -a new-ou --dn OU=TestOu --default-login-shell=/bin/ksh Create a new account for user TestUser in OU=Users,OU=TestOu: lw-adtool -a new-user --dn OU=Users,OU=TestOu --cn=TestUserCN --logon-name=TestUser --password=$PASSWD Enable the user account: lw-adtool -a enable-user --name=TestUser Reset user's password reading the password from TestUser.pwd file: cat TestUser.pwd | lw-adtool -a reset-user-password --name=TestUser --password=- --no-password-expires Create a new group in OU=Groups,OU=TestOu: lw-adtool -a new-group --dn OU=Groups,OU=TestOu --pre-win-2000-name=TestGrooup --name=TestGroup Look up "description" attribute of an OU specified by name with a wildcard: lw-adtool -a search-ou --name='*RootOu' -t | lw-adtool -a lookup-object --dn=- --attr=description Look up "unixHomeDirectory" attribute of a user with samAccountName TestUser: lw-adtool -a search-user --name TestUser -t | lw-adtool -a lookup-object --dn=- --attr=unixHomeDirectory Look up "userAccountControl" attribute of a user with CN TestUserCN: lw-adtool -a search-user --name CN=TestUserCN -t | lw-adtool -a lookup-object --dn=- --attr=userAccountControl Look up all attributes of an AD object using filter-based search: lw-adtool -a search-object --filter '(&(objectClass=person)(displayName=TestUser))' -t | lw-adtool -a lookup-object Add user TestUser to group TestGroup: lw-adtool -a add-to-group --user TestUser --to-group=TestGroup Add group TestGroup2 to group TestGroup: lw-adtool -a add-to-group --group TestGroup2 --to-group=TestGroup Remove user TestUser from group TestGroup: lw-adtool -a remove-from-group --user TestUser --from-group=TestGroup Rename AD object OU=OldName and move it to a new location: lw-adtool -a move-object --from OU=OldName,DC=department,DC=company,DC=com \ --to OU=NewName,OU=TestOU,DC=department,DC=company,DC=com Add group TestGroup to Likewise cell in TestOU: lw-adtool -a add-to-cell --dn OU=TestOU,DC=department,DC=company,DC=com --group=TestGroup Remove user TestUser from Likewise cell in TestOU: lw-adtool -a remove-from-cell --dn OU=TestOU,DC=department,DC=company,DC=com --user=TestUser Search for cells in a specific location: lw-adtool -a search-cells --search-base OU=department,DC=country,DC=company,DC=com Link cell in OU=TestOU1 to the default cell in DC=country: lw-adtool -a link-cell --source-dn OU=TestOU1,DC=department,DC=company,DC=com \ --target-dn DC=country,DC=company,DC=com Unlink cell in OU=TestOU1 from the default cell in DC=country: lw-adtool -a unlink-cell --source-dn OU=TestOU1,DC=department,DC=company,DC=com \ --target-dn DC=country,DC=company,DC=com Change the default login shell property of Likewise cell in TestOU: lw-adtool -a edit-cell --dn OU=TestOU --default-login-shell=/bin/csh Find cells linked to Likewise cell in OU=TestOU,DC=department,DC=company,DC=com: lw-adtool -a lookup-cell --dn OU=TestOU --linked-cells Look up login shell property of user TestUser in cell created in TestOU: lw-adtool -a lookup-cell-user --dn OU=TestOU --user TestUser --login-shell Change login shell property of user TestUser in cell created in TestOU: lw-adtool -a edit-cell-user --dn OU=TestOU --user TestUser --login-shell=/usr/bin/ksh Delete a cell object and all its children if any (--force): lw-adtool -a delete-object --dn OU=TestOU --force Search for Likewise cells in root naming context containing user TestUser: lw-adtool -a search-cells --user TestUser
The commands prefaced with lwio are included as part of the Likewise-CIFS technology preview. These commands are not covered under your support contract.
The lwio-copy command-line utility lets you copy files across computers running different operating systems. You can, for example, copy files from a Linux computer to a Windows computer.
There two prerequisites to use lwio-copy: The lwiod daemon must be running, and the rdr driver -- /opt/likewise/lib/librdr.sys.so
-- must be available as specified by the registry. By default, the rdr driver is available.
The location of the tool is as follows:
/opt/likewise/bin/lwio-copy
To view the tool's arguments, execute the following command on your Unix, Linux, or Mac computer:
/opt/likewise/bin/lwio-copy --help
The lwio-refresh command reloads the configuration for the lwio daemon, lwiod. When you modify the daemon's configuration, the changes take effect only after you run the lwio-refresh command or after you reboot the computer.
The location of the tool is as follows:
/opt/likewise/bin/lwio-refresh
Example usage:
/opt/likewise/bin/lwio-refresh
This command sets the logging status of the Likewise SMB file server to one of six levels: error, warning, info, verbose, debug, or trace.
To troubleshoot connection problems with lwiod and its redirector, set the log level of lwiod to debug.
The location of the tool is as follows:
/opt/likewise/bin/lwio-set-log-level
Example usage:
/opt/likewise/bin/lwio-set-log-level debug
This command displays the logging status of the Likewise SMB file server. The location of the tool is as follows:
/opt/likewise/bin/lwio-get-log-info
Example output:
[root@rhel5d bin]# ./lwio-get-log-info Current log settings: ================= SMB Server is logging to syslog Maximum allowed log level: error
The Likewise local authentication provider for local users and groups includes a full local authentication database. With functionality similar to the local SAM authentication database on every Windows computer, the local authentication provider lets you create, modify, and delete local users and groups on Linux, Unix, and Mac OS X computers by using the following commands.
To execute the commands that modify local accounts, you must use either the root account or an account that has membership in the local administrators group. The account can be an Active Directory account if you manually add it to the local administrators group. For example, you could add the Domain Administrators security group from Active Directory to the local administrators group, and then use an account with membership in the Domain Administrators security group to execute the commands.
This command adds a user to the local authentication database. The command's location is as follows:
/opt/likewise/bin/lw-add-user
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-add-user --help
This command adds a group member to the local authentication database. The command's location is as follows:
/opt/likewise/bin/lw-add-group
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-add-group --help
This command deletes a user from the local authentication database. The command's location is as follows:
/opt/likewise/bin/lw-del-user
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-del-user --help
This command deletes a group from the local authentication database. The command's location is as follows:
/opt/likewise/bin/lw-del-group
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-del-group --help
This command modifies a user's account settings in the local authentication database, including an account's expiration date and password. You can also enable a user, disable a user, unlock an account, or remove a user from a group. The command's location is as follows:
/opt/likewise/bin/lw-mod-user
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-mod-user --help
This command adds members to or removes members from a group in the local authentication database. The command's location is as follows:
/opt/likewise/bin/lw-mod-group
Here's an example that demonstrates how to add domain accounts to a local group:
/opt/likewise/bin/lw-mod-group --add-members DOMAIN\\Administrator BUILTIN\\Administrators
To view the command's syntax and arguments, execute the following command:
/opt/likewise/bin/lw-mod-group --help
Likewise includes several command-line utilities for working with Kerberos. It is recommended that you use these Kerberos utilities, located in /opt/likewise/bin, to manage those aspects of Kerberos authentication that are associated with Likewise. For complete instructions on how to use the Kerberos commands, see the man page for the command.
The kdestroy utility destroys the user's active Kerberos authorization tickets obtained through Likewise. Destroying the user's tickets can help solve logon problems.
Note: This command destroys only the tickets in the Likewise Kerberos cache of the user account that is used to execute the kdestroy command; tickets in other Kerberos caches, including root, are not destroyed. To destroy another user's cache, use the command with its - c option.
To destroy a user's Likewise Kerberos tickets, execute the following command with the user's account:
/opt/likewise/bin/kdestroy
Tip: To view this command's options, type the following command:
/opt/likewise/bin/kdestroy -
On a target Linux or Unix computer, you can see a list of Kerberos tickets by executing the following command:
/opt/likewise/bin/klist
The command lists the location of the credentials cache, the expiration time of each ticket, and the flags that apply to the tickets. For more information, see the man page for klist.
Because Likewise includes its own Kerberos 5 libraries (in /opt/likewise/lib), you must use the Likewise klist command by either changing directories to /opt/likewise/bin or including the path in the command.
Example:
-sh-3.00$ /opt/likewise/bin/klist
Ticket cache: FILE:/tmp/krb5cc_593495191
Default principal: hoenstiv@LIKEWISEDEMO.COM
Valid starting Expires Service principal
07/22/08 16:07:23 07/23/08 02:06:39 krbtgt/LIKEWISEDEMO.COM@LIKEWISEDEMO.COM
renew until 07/23/08 04:07:23
07/22/08 16:06:39 07/23/08 02:06:39 host/rhel4d.LIKEWISEDEMO.COM@
renew until 07/23/08 04:07:23
07/22/08 16:06:39 07/23/08 02:06:39 host/rhel4d.LIKEWISEDEMO.COM@LIKEWISEDEMO.COM
renew until 07/23/08 04:07:23
07/22/08 16:06:40 07/23/08 02:06:39 RHEL4D$@LIKEWISEDEMO.COM
renew until 07/23/08 04:07:23
Note: To address Kerberos issues, see Troubleshooting Kerberos Errors at http://www.microsoft.com/technet/prodtechnol/windowsserver2003/technologies/security/tkerberr.mspx.
This command obtains and caches an initial ticket-granting ticket for a principal. The command's location is as follows:
/opt/likewise/bin/kinit
To view the command's options and arguments, execute the following command:
man kinit
The kpasswd command changes a Kerberos principal's password on a Linux or Unix computer. (On a Mac computer, use the Mac OS X graphical user interface to change a Kerberos principal's password.) The command's location is as follows:
/opt/likewise/bin/kpasswd
To view the command's options and arguments, execute the following command:
man kpasswd
This command invokes a shell from which you can read, write, or edit entries in a Kerberos keytab. The command's location is as follows:
/opt/likewise/bin/ktutil
To view the command's options and arguments, execute the following command:
man ktutil
You can use ktutil to add a keytab file to a non-default location. When you join a domain, Likewise initializes a Kerberos keytab by adding the default_keytab_name setting to krb5.conf and setting it to /etc/krb5.keytab. If the keytab file referenced in krb5.conf does not exist, the Likewise domain-join utility changes the setting to /etc/krb5.conf.
You can set the keytab file to be in a location that is different from the default. To do so, you must pre-create the keytab file in the location you want
and set a symlink to it in /etc/krb5.keytab. Then, you must set the default_keytab_name in /etc/krb5.conf to point to either the symlink or the real file. The result is that
the keytab file will already exist and the Likewise domain-join utility will not modify its location setting.
The keytab's format does not let you create a keytab file without a keytab, but you can use ktutil to manually create one with a place-holder entry. When Likewise adds your computer to the domain, a correct entry will be added to the file.
/opt/likewise/bin/ktutil ktutil: addent -password -p nonexistent@nonexistent -k 1 -e RC4-HMAC Password for nonexistent@nonexistent: ktutil: wkt /var/OtherPlace/etc/krb5.keytab ktutil: quit
This command acquires a service ticket for the specified Kerberos principals and prints out the key version numbers of each. The command's location is as follows:
/opt/likewise/bin/kvno
To view the command's options and arguments, execute the following command:
man kvno
The commands and scripts listed in this section are not for end users. It is recommended that you do not use them.
ConfigureLogin is used by domainjoin-cli. It is recommended that you do not execute the ConfigureLogin command manually.
gpcron is used by the application. It is recommended that you do not execute it manually.
gpcron.sh is used by the application. It is recommended that you do not execute it manually.
The group policy agent -- gpagentd -- uses this script to restart the automount service after applying automount policy settings. The script applies different commands to restart the automount service on different operating systems, such as AIX, HP-UX, and Linux.
This section covers the command-line tools that are on a Windows computer running Likewise Enterprise. The commands are in C:\Program Files\Likewise\Enterprise.
Lwopt.exe lets you manage options for Likewise Enterprise from the command-line of a Windows administrative workstation connected to Active Directory. You can, for example, set an option to use sequential IDs instead of hashed IDs. In addition, after you set the option to use sequential IDs, you can set the initial UID number for a cell.
C:\Program Files\Likewise\Enterprise>lwopt
lwopt - configures local Windows options for Likewise
Usage: lwopt OPTIONS
OPTIONS:
--status Show current configuration status
--narrowsearch Only search the default cell on the local domain
--widesearch Search the default cell across all domains and
two-way forest trusts
--sequential Use sequential IDs instead of hased IDs
--hashed Use hashed IDs
--foreignaliases Allow the use of aliases for users and groups
from other domains.
--noforeignaliases Disallow the use of aliases for users and groups
from other domains.
--usegc Use the Global Catalog to speed up searches (default)
--ignoregc Do not use the Global Catalog to speed up searches
--startUID=# Sets the initial UID number for a cell (if --sequential)
--startGID=# Sets the initial GID number for a cell (if --sequential)
--minID=# Sets minimum UID and GID number configurable through
the UI
--cell=LDAPPATH Identifies the cell whose initial IDs (if --sequential)
Example: LDAP://somedc/ou=anou,dc=somecom,dc=com
--enableloginnames Sets the default login names to all the users enabled
in all the cells.
--disableloginnames Disable the enable default login names option to all
users enabled in all the cells.
--help Displays this usage information
If the --startUID or --startGID options are set, the --cell option must also
be set.
Table of Contents
The Likewise Event Log records and categorizes information about authentication transactions, authorization requests, network events, and other security events on Linux, Unix, and Mac OS X computers. Monitoring events such as failed logon attempts and failed sudo attempts can help prevent unauthorized access to commands, applications, and sensitive resources.
The events are stored in a SQLite database, which is included when you install the Likewise agent. The database is at /var/lib/likewise/db/lwi_events.db
and its libraries are at /opt/likewise/lib/. For viewing and modifying the database, Likewise includes a command-line utility at /opt/likewise/bin/sqlite3. For information about SQLite and instructions on how to use the command-line utility, see http://www.sqlite.org/.
The event log records the following events: daemon initializations, successful logins, failed logins, denied sudo attempts, the application of new group policy objects, offline-online transitions and other network connectivity events, and a periodic heartbeat that identifies whether the computer is active.
Likewise includes methods by which you can specify which user and group accounts have read or write access permissions to the event log. The typical methods for setting permissions are the local Likewise configuration registry and Likewise Enterprise group policy objects administered from Active Directory. You can filter events in the event log and you can decide which event categories to log.
Event logging is turned off by default. You can turn on event logging by editing the registry or by using a group policy. Then, you can configure the options for the log in the registry or manage them with the corresponding group policies. Keep in mind that group policies are available only with Likewise Enterprise; Likewise Open does not apply group policies.
After you modify the settings in the registry, you must restart the event log daemon with the root account for the changes to take effect:
/opt/likewise/bin/lwsm refresh eventlogd
For information about managing the event log with the registry, see the chapter on configuring the Likewise agent with the registry. For information about managing the event log with group policies, see the chapter on Likewise group policies.
On a Linux, Unix, or Mac OS X computer, you view the local Likewise Event Log by using the eventlog command-line utility with the root account:
/opt/likewise/bin/lw-eventlog-cli
To view the command's arguments, execute the following command:
/opt/likewise/bin/lw-eventlog-cli -h
You can gain access to the event log by using either localhost or the virtual loopback interface of the computer, which is typically assigned to the address 127.0.0.1.
To view a summary of events, execute the following command with the root account:
/opt/likewise/bin/lw-eventlog-cli -s - localhost
Example output:
========================================
Event Record: (392/396) (392 total)
========================================
Event Record ID......... 392
Event Table Category.... System
Event Type.............. Information
Event Date.............. 2010-02-16
Event Time.............. 07:37:58 AM
Event Source............ Likewise LSASS
Event Category.......... Service
Event Source ID......... 1004
Event User.............. SYSTEM
Event Computer.......... glennc-mbp
Event Description....... Likewise authentication service provider configuration settings have been reloaded.
Authentication provider: lsa-activedirectory-provider
Current settings are...
Cache reaper timeout (secs): 2592000
Cache entry expiry (secs): 14400
Space replacement character: '^'
Domain separator character: '\'
Enable event log: true
Logon membership requirements:
CORP\GLENNC-MBP_Users
CORP\EnterpriseTeam
Log network connection events: false
Create K5Login file: true
Create home directory: true
Sign and seal LDAP traffic: false
Assume default domain: false
Sync system time: true
Refresh user credentials: true
Machine password sync lifetime: 2592000
Default Shell: /bin/sh
Default home directory prefix: /Users
Home directory template: %H/local/%D/%U
Umask: 18
Skeleton directory: System/Library/User Template/Non_localized, /System/Library/User Template/English.lproj
Cell support: Invalid
Trim user membership: true
NSS group members from cache only: false
NSS user members from cache only: false
NSS enumeration enabled: true
Domain Manager check domain online (secs): 300
Domain Manager unknown domain cache timeout (secs): 3600
========================================
Or, with the following command, you can view the event log in table format:
/opt/likewise/bin/lw-eventlog-cli -t - localhost
Example:
[root@rhel5d bin]# su likewisedemo\\hab [LIKEWISEDEMO\hab@rhel5d bin]$ sudo blah Password: Sorry, try again. Password: Sorry, try again. Password: sudo: 2 incorrect password attempts [LIKEWISEDEMO\hab@rhel5d bin]$ exit [root@rhel5d bin]# /opt/likewise/bin/lw-eventlog-cli -t - localhost Id:| Type | Time | Source | Category | Event | User 83 | Information | 02:11:29 PM | Likewise LSASS | Service | 1004 | SYSTEM 84 | Success Audit | 02:13:07 PM | Likewise LSASS | Login/Logoff | 1201 | LIKEWISEDEMO\hab 85 | Failure Audit | 02:13:30 PM | Likewise LSASS | Login/Logoff | 1205 | LIKEWISEDEMO\hab 86 | Failure Audit | 02:13:33 PM | Likewise LSASS | Login/Logoff | 1205 | LIKEWISEDEMO\hab 87 | Failure Audit | 02:13:39 PM | Likewise LSASS | Login/Logoff | 1205 | LIKEWISEDEMO\hab 88 | Success Audit | 02:14:57 PM | Likewise LSASS | Login/Logoff | 1220 | LIKEWISEDEMO\hab [root@rhel5d bin]#
You can also use SQL filters to query the event log by event type, source ID, and a variety of other field names. Example:
[root@rhel5d bin]# /opt/likewise/bin/lw-eventlog-cli -s "(EventType = 'Failure Audit') AND (EventSourceId = 1205)" localhost
Event Record: (1/3) (1 total)
========================================
Event Record ID......... 85
Event Table Category.... Security
Event Type.............. Failure Audit
Event Date.............. 2009-07-29
Event Time.............. 02:13:30 PM
Event Source............ Likewise LSASS
Event Category.......... Login/Logoff
Event Source ID......... 1205
Event User.............. LIKEWISEDEMO\hab
Event Computer.......... rhel5d
Event Description....... Logon Failure:
Authentication provider: lsa-activedirectory-provider
Reason: Unknown username or bad password
User Name: LIKEWISEDEMO\hab
Login phase: User authenticate
Event Data.............. Error: The password is incorrect for the given username [error code: 32789]
========================================
The Event Type field is typically one of the following:
SUCCESS_AUDIT_EVENT_TYPE "Success Audit" FAILURE_AUDIT_EVENT_TYPE "Failure Audit" INFORMATION_EVENT_TYPE "Information" WARNING_EVENT_TYPE "Warning" ERROR_EVENT_TYPE "Error"
The Event Source is typically one of the following values:
Likewise LSASS,
Likewise GPAGENT,
Likewise DomainJoin,
Likewise NETLOGON,
System Log.
Each source defines its own list of Event Source Id values. Here's a list of events categorized by source.
======================================== EventSource = “Likewise LSASS” LSASS_EVENT_INFO_SERVICE_STARTED 1000 LSASS_EVENT_ERROR_SERVICE_START_FAILURE 1001 LSASS_EVENT_INFO_SERVICE_STOPPED 1002 LSASS_EVENT_ERROR_SERVICE_STOPPED 1003 LSASS_EVENT_INFO_SERVICE_CONFIGURATION_CHANGED 1004 // Logon events LSASS_EVENT_SUCCESSFUL_LOGON_AUTHENTICATE 1200 LSASS_EVENT_SUCCESSFUL_LOGON_CREATE_SESSION 1201 LSASS_EVENT_SUCCESSFUL_LOGON_CHECK_USER 1203 LSASS_EVENT_FAILED_LOGON_UNKNOWN_USERNAME_OR_BAD_PASSWORD 1205 LSASS_EVENT_FAILED_LOGON_TIME_RESTRICTION_VIOLATION 1206 LSASS_EVENT_FAILED_LOGON_ACCOUNT_DISABLED 1207 LSASS_EVENT_FAILED_LOGON_ACCOUNT_EXPIRED 1208 LSASS_EVENT_FAILED_LOGON_MACHINE_RESTRICTION_VIOLATION 1209 LSASS_EVENT_FAILED_LOGON_TYPE_OF_LOGON_NOT_GRANTED 1210 LSASS_EVENT_FAILED_LOGON_PASSWORD_EXPIRED 1211 LSASS_EVENT_FAILED_LOGON_NETLOGON_FAILED 1212 LSASS_EVENT_FAILED_LOGON_UNEXPECTED_ERROR 1213 LSASS_EVENT_FAILED_LOGON_ACCOUNT_LOCKED 1214 LSASS_EVENT_FAILED_LOGON_CHECK_USER 1215 LSASS_EVENT_LOGON_PHASE_AUTHENTICATE 1 LSASS_EVENT_LOGON_PHASE_CREATE_SESSION 2 LSASS_EVENT_LOGON_PHASE_CHECK_USER 3 // Logoff events LSASS_EVENT_SUCCESSFUL_LOGOFF 1220 // User password change events LSASS_EVENT_SUCCESSFUL_PASSWORD_CHANGE 1300 LSASS_EVENT_FAILED_PASSWORD_CHANGE 1301 LSASS_EVENT_SUCCESSFUL_USER_ACCOUNT_KERB_REFRESH 1302 LSASS_EVENT_FAILED_USER_ACCOUNT_KERB_REFRESH 1303 // Machine password change events LSASS_EVENT_SUCCESSFUL_MACHINE_ACCOUNT_PASSWORD_UPDATE 1320 LSASS_EVENT_FAILED_MACHINE_ACCOUNT_PASSWORD_UPDATE 1321 LSASS_EVENT_SUCCESSFUL_MACHINE_ACCOUNT_TGT_REFRESH 1322 LSASS_EVENT_FAILED_MACHINE_ACCOUNT_TGT_REFRESH 1323 // Account management events LSASS_EVENT_ADD_USER_ACCOUNT 1400 LSASS_EVENT_DELETE_USER_ACCOUNT 1401 LSASS_EVENT_ADD_GROUP 1402 LSASS_EVENT_DELETE_GROUP 1403 // Lsass provider events LSASS_EVENT_SUCCESSFUL_PROVIDER_INITIALIZATION 1500 LSASS_EVENT_FAILED_PROVIDER_INITIALIZATION 1501 LSASS_EVENT_INFO_REQUIRE_MEMBERSHIP_OF_UPDATED 1502 LSASS_EVENT_INFO_AUDITING_CONFIGURATION_ENABLED 1503 LSASS_EVENT_INFO_AUDITING_CONFIGURATION_DISABLED 1504 // Runtime warnings LSASS_EVENT_WARNING_CONFIGURATION_ID_CONFLICT 1601 LSASS_EVENT_WARNING_CONFIGURATION_ALIAS_CONFLICT 1602 // Network events LSASS_EVENT_INFO_NETWORK_DOMAIN_ONLINE_TRANSITION 1700 LSASS_EVENT_WARNING_NETWORK_DOMAIN_OFFLINE_TRANSITION 1701 ======================================== EventSource = “Likewise DomainJoin” DOMAINJOIN_EVENT_INFO_JOINED_DOMAIN 1000 DOMAINJOIN_EVENT_ERROR_DOMAIN_JOIN_FAILURE 1001 DOMAINJOIN_EVENT_INFO_LEFT_DOMAIN 1002 DOMAINJOIN_EVENT_ERROR_DOMAIN_LEAVE_FAILURE 1003 ======================================== EventSource = “Likewise GPAGENT” GPAGENT_EVENT_INFO_SERVICE_STARTED 1000 GPAGENT_EVENT_ERROR_SERVICE_START_FAILURE 1001 GPAGENT_EVENT_INFO_SERVICE_STOPPED 1002 GPAGENT_EVENT_ERROR_SERVICE_STOPPED 1003 GPAGENT_EVENT_INFO_SERVICE_CONFIGURATION_CHANGED 1004 // GPAgent policy update events GPAGENT_EVENT_POLICY_UPDATED 1100 GPAGENT_EVENT_POLICY_UPDATE_FAILURE 1101 // GPAgent policy processing issue events GPAGENT_EVENT_INFO_POLICY_PROCESSING_ISSUE_RESOLVED 1200 GPAGENT_EVENT_ERROR_POLICY_PROCESSING_ISSUE_ENCOUNTERED 1201 ======================================== EventSource = “Likewise NETLOGON” // Netlogon service events LWNET_EVENT_INFO_SERVICE_STARTED 1000 LWNET_EVENT_ERROR_SERVICE_START_FAILURE 1001 LWNET_EVENT_INFO_SERVICE_STOPPED 1002 LWNET_EVENT_ERROR_SERVICE_STOPPED 1003 LWNET_EVENT_INFO_SERVICE_CONFIGURATION_CHANGED 1004 ======================================== EventSource = “System Log” Syslog entries are parsed by the reapsysld daemon to create Likewise eventlog entries for the following: Text console logon failure 1 Text console logon success 2 SSH logon failure 3 SSH logon success 4 SUDO bad password 5 SUDO access denied 6 SUDO success 7 SSH with AD account failure 8 SSH with AD account success 9 Text console login with AD account failure 10 Text console login with AD account success 11
Table of Contents
When you leave a domain, Likewise reverses most Likewise-specific settings that were made to a computer's configuration when it was joined to the domain. Likewise also reverses any changes that you manually made to /etc/likewise/lsassd.conf or to the Likewise registry. Changes to the nsswitch module, however, are preserved until you uninstall Likewise, when they are reversed. Before you leave a domain, you can execute the following command to view the changes that will take place:
domainjoin-cli leave --advanced --preview domainName
Example:
[root@rhel4d likewise]# domainjoin-cli leave --advanced --preview likewisedemo.com
Leaving AD Domain: LIKEWISEDEMO.COM
[X] [S] ssh - configure ssh and sshd
[X] [N] pam - configure pam.d/pam.conf
[X] [N] nsswitch - enable/disable Likewise nsswitch module
[X] [N] stop - stop daemons
[X] [N] leave - disable machine account
[X] [N] krb5 - configure krb5.conf
[F] keytab - initialize kerberos keytab
Key to flags
[F]ully configured - the system is already configured for this step
[S]ufficiently configured - the system meets the minimum configuration
requirements for this step
[N]ecessary - this step must be run or manually performed.
[X] - this step is enabled and will make changes
[ ] - this step is disabled and will not make changes
For information on advanced commands for leaving a domain, see Join Active Directory with the Command Line.
When you leave a domain, the computer's account in Active Directory is not disabled and not deleted. If, however, you include the user name as part of the leave command, the computer's account is disabled but not deleted. You can include the user name as part of the leave command as follows; you will be prompted for the password of the user account:
domainjoin-cli leave userName
Example: domainjoin-cli leave brsmith
On the Linux or Unix computer that you want to remove from the Active Directory domain, use a root account to run the following command:
/opt/likewise/bin/domainjoin-cli leave
To leave a domain on a Mac OS X computer, you must have administrative privileges on the Mac.
In Finder, click Applications.
In the list of applications, double-click Utilities, and then double-click Directory Access.
On the Services tab, click the lock
and enter an administrator name and password to unlock it.
In the list, click Likewise, and then click Configure.
Enter a name and password of a local machine account with administrative privileges.
On the menu bar at the top of the screen, click the Likewise Domain Join Tool menu, and then click Join or Leave Domain.
Click Leave.
Execute the following command with an account that allows you to use sudo:
sudo /opt/likewise/bin/domainjoin-cli leave
On a Linux computer, you can uninstall the domain join GUI from the command line by running the following command as root. The command applies only to Linux computers on which you installed the domain-join GUI as a separate component. In Likewise 6.0 or later, the domain-join GUI is included in the main installation for Linux platforms and cannot be uninstalled separately.
/opt/likewise/setup/djgtk/uninstall
Important: Before uninstalling the agent, you must leave the domain and uninstall the domain-join GUI if you installed it as a separate component. Then execute the uninstall command from a directory other than likewise so that the uninstall program can delete the likewise directory and all its subdirectories -- for example, execute the command from the root directory.
If you installed the agent on a Linux or Unix computer by using the shell script, you can uninstall the Likewise agent from the command line by using the same shell script with the uninstall option. (To uninstall the agent, you must use the shell script with the same version and build number that you used to install it.) For example, on a Linux computer running glibc, change directories to the location of Likewise and then run the following command as root, replacing the name of the script with the version you installed:
./LikewiseOpen-6.0.0.94-linux-oldlibc-i386-rpm.sh uninstall
For information about the script's options and commands, execute the following command:
./LikewiseOpen-6.0.0.8011-linux-i386-rpm.sh help
On a Linux or Unix computer, you can uninstall the Likewise agent from the command line if you originally installed the agent with the BitRock installer, an installer for previous versions of Likewise.
To uninstall the agent on a Linux computer running Likewise Enterprise, run the following command as root:
/opt/likewise/setup/lwise/uninstall
To uninstall the agent on a Linux computer running Likewise Open, run the following command as root:
/opt/likewise/setup/lwiso/uninstall
On a Mac OS X computer, you must uninstall the Likewise agent by using Terminal. Before uninstalling the agent, you should leave the domain.
Log on the Mac by using a local account with privileges that allow you to use sudo.
Open a Terminal window: In Finder, on the Go menu, click Utilities, and then double-click Terminal.
At the Terminal shell prompt, execute the following command:
sudo /opt/likewise/bin/macuninstall.sh
Table of Contents
When you log on a Linux, Unix, or Mac OS X computer by using your Active Directory domain credentials, Likewise initializes and maintains a Kerberos ticket granting ticket (TGT). The TGT lets you log on other computers joined to Active Directory or applications provisioned with a service principal name and be automatically authenticated with Kerberos and authorized for access through Active Directory. In a transparent process, the underlying Generic Security Services (GSS) system requests a Kerberos service ticket for the Kerberos-enabled application or server. The result: single sign-on.
To gain access to another computer, you can use various protocols and applications:
SSH (how to configure single sign-on for SSH)
rlogin
rsh
Telnet
FTP
Firefox (for browsing of intranet sites)
LDAP queries against Active Directory
HTTP with an Apache HTTP Server
Since Microsoft Windows 2000 was released, Active Directory's primary authentication protocol has been Kerberos. When a user logs on to a Windows computer that is joined to a domain, the operating system uses the Kerberos protocol to establish a key and to request a ticket for the user. Active Directory serves as the Kerberos key distribution center, or KDC.
Likewise configures Linux and Unix computers to interact with Active Directory in a similar way. When a user logs on a Linux and Unix computer joined to a domain, Likewise requests a ticket for the user. The ticket can then be used to implement SSO with other applications.
Likewise fosters the use of the highly secure Kerberos 5 protocol by automating its configuration on Linux and Unix computers. To ensure that the Kerberos authentication service is properly configured, Likewise does the following:
Ensures that DNS is properly configured to resolve names associated with Active Directory (AD).
Performs secure, dynamic DNS updates to ensure that Linux and Unix computer names can be resolved with AD-integrated DNS servers.
Configures Kerberos. In an environment with multiple KDCs, Likewise makes sure that Kerberos selects the right server.
Configures SSHD to support SSO through Kerberos by using GSSAPI.
Creates a keytab for the computer in the following way: When you join a Linux or Unix computer to AD, Likewise creates a machine account for the computer. Likewise then automatically creates a keytab for the SPN and places it in the standard system location (typically /etc/krb5.keytab).
Creates a keytab for the user during logon. On most systems, the user keytab is placed in the /tmp directory and named krb5cc_UID, where UID is the numeric user ID assigned by the system.
When you install Likewise on a Linux, Unix, or Mac OS X computer and join it to Active Directory, Likewise prepares it for single sign-on by creating a keytab for the computer. However, when you use Likewise to implement SSO with other applications or services, you will likely have to configure the application to use GSSAPI and Kerberos 5 authentication and you will likely have to provision each application user for external Kerberos authentication. At the very least, you will have to provision your application with a service principal name in Active Directory. A service principal name, or SPN, is the name with which a client uniquely identifies an instance of a service. Kerberos then uses the SPN to authenticate a service.
Note: Configuring an external application for SSO with Kerberos is beyond the scope of the Likewise documentation; for more information, see the vendor's manual for your application.
The following process outlines the steps for setting up an application or service to use Likewise for single sign-on. For a detailed example of how to configure an application for SSO, see Configure Apache for SSO. For examples of how to create a service account in AD, register an SPN for the service account, and create a keytab for the SPN, see creating a Kerberos service principal and keytab file for SSO on the IBM web site.
Create a service account for the application in Active Directory.
Associate a service principal name, or SPN, with the service account in Active Directory; see the overview of setspn.exe on Microsoft TechNet.
Create a keytab for the SPN with the ktpass utility.
Place the keytab in the appropriate location on the Linux or Unix computer.
Configure the authentication module to get its Kerberos key from the generated keytab.
Configure the authentication module to determine appropriate roles by examining Active Directory group membership.
Configure an application to restrict access to Active Directory authenticated users in certain roles.
Test SSO by accessing restricted web sites from a Windows client running Microsoft Internet Explorer or Mozilla Firefox. Repeat this step on Linux and Unix using Firefox.
If your Active Directory account is not working with SSH, make sure that UsePAM is enabled in sshd_config and make sure that your sshd is linked to the PAM libraries.
1. Determine which sshd is running by executing the following command:
bash-3.2# ps -ef | grep sshd
root 8199 1 0 Feb 6 ? 0:00 /opt/ssh/sbin/sshd
root 2987 8199 0 Mar 3 ? 0:04 sshd: root@notty
root 24864 8199 0 12:16:25 ? 0:00 sshd: root@pts/0
root 2998 8199 0 Mar 3 ? 0:05 sshd: root@notty
root 24882 24880 0 12:16:54 pts/0 0:00 grep sshd
2. Either use lsof to find out which conf file it is reading, or start it up with debugging to figure out the default path. Example:
username@computer:~$ /usr/sbin/sshd -dd -t
debug2: load_server_config: filename /etc/ssh/sshd_config
debug2: load_server_config: done config len = 664
debug2: parse_server_config: config /etc/ssh/sshd_config len 664
debug1: sshd version OpenSSH_5.1p1 Debian-3ubuntu1
Could not load host key: /etc/ssh/ssh_host_rsa_key
Could not load host key: /etc/ssh/ssh_host_dsa_key
3. Verify that UsePAM is enabled in the config file. As a best practice, make a backup copy of the configuration file before you change it.
4. Run ldd on sshd to make sure it links with libpam. Example from an IA64 HP system:
bash-3.2# ldd /opt/ssh/sbin/sshd
libpam.so.1 => /usr/lib/hpux64/libpam.so.1
libdl.so.1 => /usr/lib/hpux64/libdl.so.1
libnsl.so.1 => /usr/lib/hpux64/libnsl.so.1
libxnet.so.1 => /usr/lib/hpux64/libxnet.so.1
libsec.so.1 => /usr/lib/hpux64/libsec.so.1
libgssapi_krb5.so => /usr/lib/hpux64/libgssapi_krb5.so
libkrb5.so => /usr/lib/hpux64/libkrb5.so
libpthread.so.1 => /usr/lib/hpux64/libpthread.so.1
libc.so.1 => /usr/lib/hpux64/libc.so.1
libxti.so.1 => /usr/lib/hpux64/libxti.so.1
libxti.so.1 => /usr/lib/hpux64/libxti.so.1
libm.so.1 => /usr/lib/hpux64/libm.so.1
libk5crypto.so => /usr/lib/hpux64/libk5crypto.so
libcom_err.so => /usr/lib/hpux64/libcom_err.so
libk5crypto.so => /usr/lib/hpux64/libk5crypto.so
libcom_err.so => /usr/lib/hpux64/libcom_err.so
libdl.so.1 => /usr/lib/hpux64/libdl.so.1
bash-3.2#
To use PuTTY to connect to a Linux or Unix machine from a Windows machine and then connect to a second Linux or Unix, you must configure PuTTY to allow ticket forwarding and you must set the base Linux or Unix computer in Active Directory to be trusted for delegation.
Important: The following procedure assumes that you are using a GSSAPI-enhanced version of PuTTY, such as PuTTY by Likewise Software, which you can download at http://likewise.com/download/Likewise_PuTTY.zip. The procedure also assumes that there are DNS entries for all three computers and that you use host names to connect to the target computers. If DNS search domains are properly setup on your client systems, you can use short host names.
In the PuTTY Configuration dialog, select Allow GSSAPI (Kerberos 5) ticket delegation. (With some versions of PuTTY, the option is named Allow Kerberos 5 ticket forwarding (SSH 1/2).)
Select Attempt GSSAPI (Kerberos 5) auth (SSH-2 only). With some versions of PuTTY, the option is named Attempt GSSAPI/Kerberos 5 authentication.
This procedure assumes the base Linux or Unix computer is joined to Active Directory with Likewise. To perform this procedure, you must be a member of the Domain Administrators security group or the Enterprise Administrators security group, or you must have been delegated authority.
Windows Server 2003 R2
In Active Directory Users and Computers, in the console tree, click Computers.
In the details pane, right-click the computer that you want, and then click Properties.
On the Delegation tab, click Trust this computer for delegation to specified services only:

Confirm that Use Kerberos only is selected.
Click Add and, in Add Services, click Users and Computers.
In Enter the object names to select, type the name of the user or computer that the computer will be trusted to delegate for, and then click OK.
In Add Services, click the service or services that will be trusted for delegation and then click OK.
Windows 2000
In Active Directory Users and Computers, in the console tree, click Computers.
In the details pane, right-click the computer that you want, and then click Properties.
On the General tab, select Trust computer for delegation:

There is a known bug with some versions of Red Hat and CentOS that prevents SSO from working with SSH, SSHD, and PuTTY. The following versions are known to be affected:
CentOS 5
Red Hat Enterprise Linux 5
The system incorrectly concatenates the Kerberos ticket's service principal name on the target Linux computer. For example, in the final entry of the results of the klist command below, the full name of the service principal is cut off after the @ symbol:
[LIKEWISEDEMO\fanthony@centos52 ~]$ /opt/likewise/bin/klist
Ticket cache: FILE:/tmp/krb5cc_1689257039
Default principal: fanthony@LIKEWISEDEMO.COM
Valid starting Expires Service principal
07/31/08 09:25:13 07/31/08 19:25:31 krbtgt/LIKEWISEDEMO.COM@LIKEWISEDEMO.COM
renew until 08/07/08 09:25:13
07/31/08 09:25:31 07/31/08 19:25:31 CENTOS52$@LIKEWISEDEMO.COM
renew until 08/07/08 09:25:13
07/31/08 09:30:04 07/31/08 19:25:31 host/centos52.likewisedemo.com@renew until 08/07/08 09:25:13
To determine whether you need to implement the solution below on your Red Hat or CentOS computer, execute the following series of tests:
Connect to your target machine with SSH by using PUTTY and a valid Active Directory user. Be sure to use the FQDN of the host.
Execute the following command:
/opt/likewise/bin/klist
The results should look like this:
LIKEWISEDEMO\fanthony@centos52 ~]$ klist
Ticket cache: FILE:/tmp/krb5cc_1689257039
Default principal: fanthony@LIKEWISEDEMO.COM
Valid starting Expires Service principal
07/31/08 09:25:13 07/31/08 19:25:31 krbtgt/LIKEWISEDEMO.COM@LIKEWISEDEMO.COM
renew until 08/07/08 09:25:13
07/31/08 09:25:31 07/31/08 19:25:31 CENTOS52$@LIKEWISEDEMO.COM
renew until 08/07/08 09:25:13SSH again to the same host and when prompted for the password, type CNTL+C.
Execute the klist command again:
/opt/likewise/bin/klist
Check the results to determine whether there is an incorrectly concatenated service principal, as there is in the following output:
[LIKEWISEDEMO\fanthony@centos52 ~]$ klist
Ticket cache: FILE:/tmp/krb5cc_1689257039
Default principal: fanthony@LIKEWISEDEMO.COM
Valid starting Expires Service principal
07/31/08 09:25:13 07/31/08 19:25:31 krbtgt/LIKEWISEDEMO.COM@LIKEWISEDEMO.COM
renew until 08/07/08 09:25:13
07/31/08 09:25:31 07/31/08 19:25:31 CENTOS52$@LIKEWISEDEMO.COM
renew until 08/07/08 09:25:13
07/31/08 09:30:04 07/31/08 19:25:31 host/centos52.likewisedemo.com@
renew until 08/07/08 09:25:13On Red Hat Enterprise Linux 5, make sure that the reverse PTR host definitions are defined in DNS.
On the target Linux computer, add the following line to /etc/krb5.conf under the [domain_realm] entry of the file:
.yourdomainname.com = YOURDOMAINNAME.COM
Example:
[domain_realm]
.likewisedemo.com = LIKEWISEDEMO.COMRestart SSHD by running the following command at the shell prompt:
/sbin/service sshd restart
For single sign-on with SSH to work on Red Hat Enterprise Linux 5 and AIX, reverse PTR host definitions must be set in DNS.
On AIX 5.3, client-side SSH is not set up by default. Here's how to configure it so that it will work with Likewise.
On your AIX 5.3 computer, make sure the network authentication service, version 1.4.0.8, is installed; example:
-bash-3.00$ lslpp -l | grep krb krb5.client.rte 1.4.0.8 COMMITTED Network Authentication Service
If it is not installed, obtain it from the IBM AIX web site at http://www.ibm.com/developerworks/aix/library/au-nas_relatedtech/index.html and install it.
After joining an Active Directory domain with Likewise, append the following lines to the end of /etc/krb5/krb5.conf:
[domain_realm] .demo.likewise.com = DEMO.LIKEWISE.COM demo.likewise.com = DEMO.LIKEWISE.COM
Make sure that /etc/krb5/krb5.conf links to /etc/krb5.conf.
Also make sure that /etc/krb5/krb5.keytab links to /etc/krb5.keytab.
Make a backup of the credentials directory by executing the following command as root:
mv /var/krb5/security/creds /var/krb5/security/creds_old
As root, make a symbolic link to the /tmp directory so that the AIX Kerberos libraries can access the directory in which Likewise stores its credential caches:
ln -s /tmp /var/krb5/security/creds
Open /etc/environment -- which contains the list of environmental variables that are set when a user logs on -- and add the following line to the end of it:
KRB5_CONFIG=/var/lib/likewise/krb5-affinity.conf:/etc/krb5.conf
If you are logged on the machine whose environmental variable you changed, you must log off and log on again for the change to take effect.
This section describes how to configure Likewise and the Apache HTTP Server to provide single sign-on authentication through Active Directory with Kerberos 5. The instructions assume that you know how to administer Active Directory, the Apache HTTP Server, and computers running Linux.
Single sign-on for the Apache HTTP server uses the Simple and Protected GSS-API Negotiation Mechanism, or SPNEGO, to negotiate authentication with Kerberos. SPNEGO is an Internet standard documented in RFC 2478 and is commonly referred to as the negotiate authentication protocol. The Likewise mod_auth_kerb module lets an Apache web server running on a Linux or Unix system authenticate and authorize users based on their Active Directory domain credentials.
Important: This topic assumes that you have installed either Likewise Open 5.0 or later or Likewise Enterprise 5.0 or later, build 3946 or later, on the Linux computer running your Apache HTTP Server and that you have joined the server to Active Directory. With build 3946, Likewise 5.0 began to include the Apache mod_auth_kerb module in /opt/likewise/apache; the Likewise version of the mod_auth_kerb module is required to set up your Apache HTTP Server for single sign-on.
To check whether your build of Likewise Enterprise or Likewise Open includes mod_auth_kerb, confirm that the following components exist:
/opt/likewise/apache/2.0/mod_auth_kerb.a
/opt/likewise/apache/2.0/mod_auth_kerb.so
/opt/likewise/apache/2.2/mod_auth_kerb.a
/opt/likewise/apache/2.2/mod_auth_kerb.so• Likewise Open 5.0 or later or Likewise Enterprise 5.0 or later, build 3946 or later.
• The Linux or Unix computer that is hosting the Apache web server is joined to Active Directory.
• An Apache HTTP Server 2.0 or 2.2 that supports dynamically loaded modules. To check whether your Apache web server supports dynamically loaded modules, execute the following command and verify that mod_so.c appears in the list of compiled modules:
httpd -l
Compiled in modules: core.c prefork.c http_core.c mod_so.c
For Apache installations that are compiled from the source code, make sure that --enable-module=so is specified when ./configure is executed:
./configure --enable-module=so
• Your Kerberos libraries must support SPNEGO. For example, MIT Kerberos libraries that are version 1.5 and later support SPNEGO; earlier versions do not. Make sure your Kerberos libraries support SPNEGO by running ldd:
which httpd
/usr/sbin/httpd
ldd /usr/sbin/httpdIn the results, find the line that references libgssapi:
libgssapi_krb5.so.2 => /usr/lib/libgssapi_krb5.so.2 (0x00231000)
Finally, query the version number of the library and make sure it is 1.5 or later:
rpm -qif /usr/lib/libgssapi_krb5.so.2
Name : krb5-libs Relocations: (not relocatable)Version : 1.5Vendor: Red Hat, Inc. Release : 17 Build Date: Tue 16 Jan 2007 10:01:00 AM PST Install Date: Fri 14 Dec 2007 09:09:44 AM PST Build Host: ls20-bc1-13.build.redhat.com Group : System Environment/Libraries Source RPM: krb5-1.5-17.src.rpm Size : 1333337 License: MIT, freely distributable. Signature : DSA/SHA1, Wed 17 Jan 2007 10:57:33 AM PST, Key ID 5326810137017186 Packager : Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla> URL : http://web.mit.edu/kerberos/www/ Summary : The shared libraries used by Kerberos 5. Description : Kerberos is a network authentication system. The krb5-libs package contains the shared libraries needed by Kerberos 5. If you are using Kerberos, you need to install this package. [root@rhel5d sbin]#
The following instructions demonstrate how to configure Likewise and Apache for SSO on a Red Hat Enterprise Linux 5 computer. The steps vary by operating system and by Apache version. Ubuntu, in particular, uses apache2 instead of httpd for commands, the name of the daemon, the configuration directory, the name of the configuration file, and so forth.
Important: Configuring web servers is complex. Before you deploy your configuration to a production web server, implement and test it in a test environment. More: Before you change your web server's configuration, read and understand the Apache HTTP Server documentation at http://httpd.apache.org/docs/ and the mod_auth_kerb documentation at http://modauthkerb.sourceforge.net/configure.html. Before you change a file, make a backup copy of it.
Determine whether your Apache server is 2.0 or 2.2 by running the following command:
httpd -v
Server version: Apache/2.2.3
Server built: Nov 29 2006 06:33:19Edit your Apache configuration file -- /etc/httpd/conf/httpd.conf -- to add a directive to load the Likewise auth_kerb_module for your version of Apache. Since my Red Hat computer is running Apache 2.2.3, I have added the 2.2 version of the module to the list after the other auth modules (which were already listed in the file):
LoadModule auth_basic_module modules/mod_auth_basic.so
LoadModule auth_kerb_module /opt/likewise/apache/2.2/mod_auth_kerb.soIn /etc/httpd/conf/httpd.conf, configure authentication for a directory and then restart the web server; example:
<Directory "/var/www/html/secure"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 AuthType Kerberos AuthName "Kerberos Login" KrbAuthRealms LIKEWISEDEMO.COM Krb5Keytab /etc/apache2/http.ktb Require valid-user </Directory>
Tip: You can require that a user be a member of a security group to access the Apache web server by replacing Require valid-user with Require group name-of-your-group, as shown in the example below. To control group access by requiring group membership, however, you must first install and load mod_auth_pam; for instructions on how to set up mod_auth_pam, see http://pam.sourceforge.net/mod_auth_pam/install.html. (Because mod_auth_pam is no longer maintained, you should consider using mod_authz_unixgroup instead; see the instructions later in this section.)
<Directory "/var/www/html/secure"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 AuthType Kerberos AuthName "Kerberos Login" KrbAuthRealms LIKEWISEDEMO.COM Krb5Keytab /etc/apache2/http.ktb Require group linuxfulladmins </Directory>
Configure your web server for Secure Socket Layer (SSL). For instructions, see the Apache HTTP Server documentation.
Important: If SSO fails and you have not turned on SSL, your server will prompt you for an ID and password -- which will be sent in clear text. SSL encrypts all data that passes between the client browser and the web server. SSL can also perform Basic Authentication in a secure fashion, providing a fallback mechanism in the event that Kerberos authentication fails. Using SSL is especially important if the protected web site also needs to be accessible from outside the corporate network. For more information, see http://modauthkerb.sourceforge.net/configure.html.
In Active Directory, create a user account for the Apache web server in the same OU (or, with Likewise Enterprise, cell) to which the Linux computer hosting the web server is joined. Set the password of the user account to never expire. In the examples that follow, the user account for my Apache web server is named httpUser.
On the domain controller, create an RC4-HMAC keytab for the Apache web server by using Microsoft's ktpass utility. For information on ktpass, see http://technet.microsoft.com/en-us/library/cc776746.aspx. The keytab that you must create can vary by Windows version.
Example:
C:\>ktpass /out keytabfile /princ HTTP/rhel5d.likewisedemo.com@LIKEWISEDEMO.COM /pass SkiAlta2008 /mapuser likewisedemo\httpUser /ptype KRB5_NT_PRINCIPAL
Targeting domain controller: steveh-dc.likewisedemo.com
Using legacy password setting method
Successfully mapped HTTP/rhel5d.likewisedemo.com to httpUser.
Key created.
Output keytab to keytabfile:
Keytab version: 0x502
keysize 80 HTTP/rhel5d.likewisedemo.com@LIKEWISEDEMO.COM ptype 0 (KRB5_NT_UNKNOWN) vno 3 etype 0x17 (RC4-HMAC) keylength 16 (0x2998807dc299940e2c6c81a08315c596)Note: On Windows 2000, do not specify the domain name as part of the /mapuser parameter; just enter the name of the user.
Use secure FTP or another method to transfer the keytab file to the Linux computer that hosts your Apache web server and place the file in the location specified in your <Directory> configuration in httpd.conf. For example, using the configuration shown in Step 3 above, the keytab file would be placed in /etc/apache2/http.ktb.
Set the permissions of the keytab file to be readable by the ID under which the Apache web server runs and no one else.
Important: The Kerberos keytab file is necessary to authenticate incoming requests. It contains an encrypted, local copy of the host’s key and, if compromised, might allow unrestricted access to the host computer. It is therefore crucial to protect it with file-access permissions.
Instead of using the mod_auth_pam, which is no longer maintained, you can require that a user be a member of a security group to access the Apache web server by using mod_authz_unixgroup. First, install mod_authz_unixgroup:
yum install httpd-devel wget http://mod-auth-external.googlecode.com/files/mod_authz_unixgroup-1.0.2.tar.gz tar -xzvf mod_authz_unixgroup-1.0.2.tar.gz cd mod_authz_unixgroup-1.0.2 apxs -c mod_authz_unixgroup.c apxs -i -a mod_authz_unixgroup.la
Then, in /etc/httpd/conf/httpd.conf, replace Require valid-user with AuthzUnixgroup on and Require group name-of-your-group:
<Directory "/var/www/html/secure"> ... KrbAuthRealms LIKEWISEDEMO.COM Krb5Keytab /etc/apache2/http.ktb AuthzUnixgroup on Require group linuxfulladmins </Directory>
For more information, see the documentation for mod_authz_unixgroup.
To set up Firefox for single sign-on, you must turn on the Simple and Protected GSS-API Negotiation Mechanism, or SPNEGO, to negotiate authentication with Kerberos.
Open Firefox.
In the Go box, type about:config, and then click Go.
In the Filter box, type uris.

Double-click network.negotiate-auth.trusted-uris, enter a comma-separated list of URL prefixes or domains that are permitted to engage in SPNEGO authentication with the browser, and then click OK. Example:

Double-click network.negotiate-auth.delegation-uris, enter a comma-separated list of the sites for which the browser may delegate user authorization to the server, and then click OK.
For more information on how to configure Firefox, see http://grolmsnet.de/kerbtut/firefox.html.
To negotiate with your web server through the GSSAPI by using NTLM as the preferred authentication protocol on a Mac OS X computer, you must also modify the GSS preferences as follows. To find the preferences, type gss into Firefox's filter box:
network.negotiate-auth.gsslib user set string /opt/likewise/lib/libgssapi_krb5.2.2.dylib network.negotiate-auth.using-native-gsslib user set boolean false

Here's how to configure Internet Explorer 7.0 to use SPNEGO and Kerberos. The settings for other versions of IE might vary; see your browser's documentation for more information.
Start Internet Explorer 7.0.
On the Tools menu, click Internet Options.
Click the Advanced tab and make sure that the Enable Integrated Windows Authentication box is selected:

Click the Security tab.
Select a zone -- for example, Local intranet -- and then click Custom level.
In the Settings list, under User Authentication, click Automatic logon with current user name and password for a trusted site, or Automatic logon only in Intranet zone for a site you added to IE's list of Intranet sites. For more information, see your browser's documentation.

Return to the Security tab for Internet Options and set your web server as a trusted site.
Restart Internet Explorer.
The following tools can help diagnose problems with Kerberos authentication.
The location of the Apache error logs is specified in the Apache configuration file under the ErrorLog directive. Here's an example directive from /etc/httpd/conf/httpd.conf on RHEL 5: ErrorLog logs/error_log
The Microsoft Kerbtray.exe utility, part of the Windows 2000 Resource Kit, can verify whether Internet Explorer obtained a Kerberos ticket for your web server. You can download the utility at the following URL:
http://www.microsoft.com/downloads/details.aspx?familyid=4E3A58BE-29F6-49F6-85BE-E866AF8E7A88&displaylang=en
You can use the klist utility in /opt/likewise/bin/klist to check the Kerberos keytab file on a Linux or Unix computer. The command shows all the service principal tickets contained in the keytab file so you can verify that the correct service principal names appear. Confirm that HTTP/myserver@MYDOMAIN.COM and HTTP/myserver.mydomain.com@MYDOMAIN.COM appear in the list. It is normal to see multiple entries for the same name.
Example:
klist -k krb5_myserver.keytabKeytab name: FILE:krb5_myserver.keytabKVNO Principal---- -------------------------------------------------------------------------- 6 HTTP/myserver@MYDOMAIN.COM 6 HTTP/myserver@MYDOMAIN.COM 6 HTTP/myserver@MYDOMAIN.COM 6 HTTP/myserver.mydomain.com@MYDOMAIN.COM 6 HTTP/myserver.mydomain.com@MYDOMAIN.COM 6 HTTP/myserver.mydomain.com@MYDOMAIN.COMIf your service principal names are incorrect, generate a new Kerberos keytab file.
Authentication problems can be difficult to diagnose. First, check all the configuration parameters, including the validity of the keytab file. Second, make sure none of the common problems listed in the following table are sabotaging authentication.
|
Problem |
Solution |
|
The system's clock is out of sync. |
The Kerberos standard requires that system clocks be no more than 5 minutes apart. Make sure that the system clocks on the Active Directory domain controller, the Linux or Unix web server, and the client are synchronized. |
|
The user accessing the web site is not on the |
If Kerberos ticket was obtained on the client or the user correctly entered his credentials during the Basic Authentication prompt, it might be because authentication worked but the authorization failed. If so, the Apache error_log will contain a line like this:
Add the user to the |
|
The user accessing the web site is logged on the wrong domain. |
If the client user is logged on a domain different from the domain of the web server, one of two things will happen:
|
|
Internet Explorer does not consider the URL to be part of the Local Intranet zone or the Trusted sites. |
This problem commonly occurs when the web site is accessed by using a URL that includes the full domain name, such as Try to access the web site by using only the server name, for example Or, you can add the URL to a list of Local Intranet sites or the trusted sites by changing your options in Internet Explorer. |
|
The service principal name of the web site is mapped to more than one object in the Active Directory. |
Although this problem is rare, it is difficult to diagnose because the error messages are vague. The problem can occur after the ktpass utility was used repeatedly to generate a Kerberos keytab file for the web server. To check for this problem, log on your Active Directory domain controller and open the Event Viewer. Look for an event of type=Error, source=KDC, and event ID=11. The text of the event will be similar to the message below:
To fix the problem, find the computer or user objects that were used to map the service principal name in Active Directory and then use the ADSI Edit to manually remove the “HTTP/myserver.mydomain.com” string from the servicePrincipalName object property. Below the table is a screen shot that provides an example of how to find an object named |
Problem: Because some operating systems, such as the 64-bit version of Red Hat Enterprise Linux 5, use an outdated version of /lib/libcom_err.so, the Likewise authentication agent cannot the locate the proper system library, leading to an error that looks like this:
httpd: Syntax error on line 202 of /etc/httpd/conf/httpd.conf: Cannot load /opt/likewise/apache/2.2/mod_auth_kerb.so into server: /opt/likewise/lib/libcom_err.so.3: symbol krb5int_strlcpy, version krb5support_0_MIT not defined in file libkrb5support.so.0 with link time reference
Solution: Force the httpd daemon to use the Likewise krb5 libraries by opening the startup script for the Apache HTTP Server
-- /etc/init.d/httpd -- and adding the path to the Likewise Kerberos libraries on the line that starts Apache. The line that starts the daemon can vary by operating system. Example on a 64-bit system:
LD_LIBRARY_PATH=/opt/likewise/lib64 LANG=$HTTPD_LANG daemon $httpd $OPTIONS
On a 32-bit system, the path would look like this:
/opt/likewise/lib
Note: This modification changes the version of the Kerberos libraries that are used by the Apache HTTP Server. The change might result in compatibility issues with other modules of Apache that use Kerberos.
To view sample code that shows you how to use Likewise for single sign-on with protocols such as FTP and Telnet, see Single Sign-On Examples.
Table of Contents
The Likewise registry is a hierarchical database that stores configuration information for Likewise daemons, authentication providers, drivers, and other services.
On Linux, Unix, and Mac computers, the Likewise services continually access the registry to obtain settings for their parameters. The Likewise authentication service, for example, queries the registry to determine which log level to use or which home directory template to apply to a user. In Likewise 5.4 or later, the registry replaces the text-based configuration files like lsassd.conf that were used in Likewise 5.3 or earlier.
When you install the Likewise agent on a Linux, Unix, or Mac computer but do not install Likewise Enterprise on a Windows administrative workstation connected to Active Directory, you cannot configure local Likewise settings with group policies. Instead, you must edit the local Likewise registry. You can access the registry and modify its settings by using the Likewise registry shell -- lwregshell -- in /opt/likewise/bin/.
This chapter describes the structure of the registry, demonstrates how to change a value in it, and lists the local Likewise configuration options. Most of the settings can be centrally managed with group policies when you use Likewise Enterprise; see About Group Policies in the Group Policy Administration Guide. If you modify a setting in the registry that is managed by a group policy, the change will not persist: It will be overwritten by the setting in the policy as soon as the group policy object is updated, which typically takes place once every 30 minutes. Likewise Open does not apply group policies.
The Likewise registry contains one predefined top-level, or root, key: HKEY_THIS_MACHINE. Within the root key, the structure of the registry is delineated by service into branches of keys, subkeys, and values. A key is similar to a folder; it can contain additional keys and one or more value entries. A value entry is an ordered pair with a name and a value. A subkey, similar to a subfolder, is simply a child key that appears under another key, the parent. A branch describes a key and all of its contents, including subkeys and value entries.
The upper level of the Likewise registry's hierarchical structure looks like this:
\> ls [HKEY_THIS_MACHINE] \> cd HKEY_THIS_MACHINE\ HKEY_THIS_MACHINE\> ls [HKEY_THIS_MACHINE\Services] HKEY_THIS_MACHINE\> cd Services\ HKEY_THIS_MACHINE\Services> ls [HKEY_THIS_MACHINE\Services\] [HKEY_THIS_MACHINE\Services\dcerpc] [HKEY_THIS_MACHINE\Services\eventlog] [HKEY_THIS_MACHINE\Services\lsass] [HKEY_THIS_MACHINE\Services\lwio] [HKEY_THIS_MACHINE\Services\lwreg] [HKEY_THIS_MACHINE\Services\netlogon] [HKEY_THIS_MACHINE\Services\npfs] [HKEY_THIS_MACHINE\Services\pvfs] [HKEY_THIS_MACHINE\Services\rdr] [HKEY_THIS_MACHINE\Services\srv] [HKEY_THIS_MACHINE\Services\srvsvc]
Each of the services corresponds to a Likewise daemon, driver, or other service. The subkeys within each service contain value entries. A value specifies the setting for an entry, often presented under the parameters key. The following output illustrates the hierarchy of keys, subkeys, and their value entries for the upper levels of the lsass service.
[HKEY_THIS_MACHINE\Services\lsass\]"Arguments" REG_SZ "/opt/likewise/sbin/lsassd --syslog"
"Dependencies" REG_SZ "netlogon lwio lwreg rdr npfs"
"Description" REG_SZ "Likewise Security and Authentication Subsystem" "Path" REG_SZ "/opt/likewise/sbin/lsassd"
"Type" REG_DWORD 0x00000001 (1)
[HKEY_THIS_MACHINE\Services\lsass\Parameters]
HKEY_THIS_MACHINE\Services\lsass> cd Parameters HKEY_THIS_MACHINE\Services\lsass\Parameters> ls [HKEY_THIS_MACHINE\Services\lsass\Parameters\] "EnableEventlog" REG_DWORD 0x00000000 (0)
"LogLevel" REG_SZ "error" "LogNetworkConnectionEvents" REG_DWORD 0x00000001 (1) [HKEY_THIS_MACHINE\Services\lsass\Parameters\NTLM]
[HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM] [HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers] [HKEY_THIS_MACHINE\Services\lsass\Parameters\RPCServers]
The key for the lsass service. Lsass is the Likewise authentication and security subsystem. | |
The value entry for the command that is run to start the service, including command-line arguments. For the | |
Other services that the service depends on. The Likewise Service Manager starts the dependencies before it starts the | |
The system path to the | |
The data type of the daemon. Its boolean value is set to the hexidecimal representation of 1, for true: It is turned on. Data types are discussed below. | |
The branch for the service's parameters. | |
The value entry for | |
The branch for the NTLM subkey. |
The lsass service is the primary location for configurations targeted at system administrators and end users. It contains nearly all the configuration options for the Likewise authentication and security service.
The following branches contain a minimal set of value entries, most of which are used by their corresponding service to function properly. It is recommended that you do not change them.
[HKEY_THIS_MACHINE\Services\dcerpc] "Dependencies"="" "Description"="Likewise DCE/RPC Endpoint Mapper" "Path"="/opt/likewise/sbin/dcerpcd" [HKEY_THIS_MACHINE\Services\lwreg] "Dependencies"="" "Description"="Likewise Registry Service" "Path"="/opt/likewise/sbin/lwregd" [HKEY_THIS_MACHINE\Services\npfs] "Dependencies"="lwio" "Description"="Likewise Named Pipe Filesystem" "Path"="/opt/likewise/lib/libnpfs.sys.so" [HKEY_THIS_MACHINE\Services\pvfs] "Dependencies"="lwio" "Description"="Likewise POSIX VFS Filesystem" "Path"="/opt/likewise/lib/libpvfs.sys.so" [HKEY_THIS_MACHINE\Services\rdr] "Dependencies"="lwio" "Description"="Likewise CIFS Redirector" "Path"="/opt/likewise/lib/librdr.sys.so" [HKEY_THIS_MACHINE\Services\srv] "Dependencies"="lwio pvfs npfs lsass" "Description"="Likewise CIFS Server" "Path"="/opt/likewise/lib/libsrv.sys.so" [HKEY_THIS_MACHINE\Services\srvsvc] "Dependencies"="dcerpc lwio srv npfs" "Description"="Likewise Server Service" "Path"="/opt/likewise/sbin/srvsvcd"
The Likewise registry employs four data types to store values. The values of data types are case sensitive. The following table lists the data types that are defined and used by Likewise. The maximum size of a key is 255 characters (absolute path).
| Name | Data Type | Description |
| Binary Value | REG_BINARY | A sequence of bytes. Displayed in the registry shell in hexadecimal format. The maximum size is 1024 bytes. |
| DWORD Value | REG_DWORD | Data represented by a 32-bit integer. Parameters and services are typically set as this data type. The values are displayed in the registry shell in hexadecimal and decimal format. When a parameter is turned off, it is set to 0; when a parameter is turned on, it is set to 1. |
| Multi-String Value | REG_MULTI_SZ | A multiple string. Values that include lists or multiple values typically use this data type. Values are strings in quotation marks separated by spaces. In an import of a Likewise registry file, the multi-string values typically contain an sza: prefix. In an export of the registry, the multi-string values typically contain an hex(7): prefix. The maximum size of a REG_MULTI_SZ is 1024 bytes, total, not each string in the multi string. There are, however, null bytes between strings that contribute to the count, so the actual byte count is slightly less. |
| String Value | REG_SZ | A text string. The maximum size of a REG_SZ value is 1023 characters (1024 bytes, including the null terminator). |
To quickly change an end-user setting in the registry that is not managed by a group policy, you can run the lwconfig command-line tool as root:
/opt/likewise/bin/lwconfig
The syntax to change the value of a setting is as follows, where setting is replaced by the registry entry that you want to change and value by the new value that you want to set:
/opt/likewise/bin/lwconfig setting value
Here's an example of how to use lwconfig to change the AssumeDefaultDomain setting:
[root@rhel5d bin]# ./lwconfig --detail AssumeDefaultDomainName: AssumeDefaultDomain Description: Apply domain name prefix to account name at logon Type: boolean Current Value: false Accepted Values: true, false Current Value is determined by local policy. [root@rhel5d bin]# ./lwconfig AssumeDefaultDomain true
[root@rhel5d bin]# ./lwconfig --show AssumeDefaultDomain
boolean true local policy
Use the | |
Set the value to | |
Use the |
To view the registry settings that you can change with lwconfig, execute the following command:
/opt/likewise/bin/lwconfig --list
You can also import and apply a number of settings with a single command by using the --file option combined with a text file that contains the settings that you want to change followed by the values that you want to set. Each setting-value pair must be on a single line. For example, the contents of my flat file, named newRegistryValuesFile and saved to the desktop of my Red Hat computer, looks like this:
AssumeDefaultDomain true RequireMembershipOf "likewisedemo\\support" "likewisedemo\\domain^admins" HomeDirPrefix /home/ludwig LoginShellTemplate /bash/sh
To import the file and automatically change the settings listed in the file to the new values, I would execute the following command as root:
/opt/likewise/bin/lwconfig --file /root/Desktop/newRegistryValuesFile
Here's another example of how to use lwconfig to find a setting and change it. Let's say you want to view the available trust settings because you know there are inaccessible trusts in your Active Directory network and you want to set Likewise to ignore all the trusts before you try to join a domain.
To do so, use grep with the list option:
/opt/likewise/bin/lwconfig --list | grep -i trust
The results will look something like this:
DomainManagerIgnoreAllTrusts DomainManagerIncludeTrustsList DomainManagerExcludeTrustsList
Next, use the details option to list the values that the DomainManagerIgnoreAllTrusts setting accepts:
[root@rhel5d bin]# ./lwconfig --details DomainManagerIgnoreAllTrusts Name: DomainManagerIgnoreAllTrusts Description: When true, ignore all trusts during domain enumeration. Type: boolean Current Value: false Accepted Values: true, false Current Value is determined by local policy.
Now change the setting to true so that Likewise will ignore trusts when you try to join a domain.
[root@rhel5d bin]# ./lwconfig DomainManagerIgnoreAllTrusts true
Finally, check to make sure the change took effect:
[root@rhel5d bin]# ./lwconfig --show DomainManagerIgnoreAllTrusts boolean true local policy
In the example output that shows the setting's current values, local policy is listed -- meaning that the policy is managed locally through lwconfig because a Likewise Enterprise group policy is not managing the setting. You cannot locally modify a setting that is managed by a group policy.
For more information on the arguments of lwconfig, run the following command:
/opt/likewise/bin/lwconfig --help
You can access and modify the registry by using the registry shell -- lwregshell -- in /opt/likewise/bin. The shell works in a way that is similar to BASH. You can navigate the registry's hierarchy with the following commands:
cd ls pwd
You can view a list of commands that you can execute in the shell by entering help:
/opt/likewise/bin/lwregshell
\> help
usage: regshell [--file | -f] command_file.txt
add_key [[KeyName]]
list_keys [[keyName]]
delete_key [KeyName]
delete_tree [KeyName]
cd [KeyName]
pwd
add_value [[KeyName]] "ValueName" Type "Value" ["Value2"] [...]
set_value [[KeyName]] "ValueName" "Value" ["Value2"] [...]
list_values [[keyName]]
delete_value [[KeyName]] "ValueName"
set_hive HIVE_NAME
import file.reg
export [[keyName]] file.reg
upgrade file.reg
exit | quit | ^D
Type: REG_SZ | REG_DWORD | REG_BINARY | REG_MULTI_SZ
REG_DWORD and REG_BINARY values are hexadecimal
Note: cd and pwd only function in interactive mode
Note: HKEY_THIS_MACHINE is the only supported hive
\>
Note: In the unlikely event that you want to restore all the registry's default values, you must leave the domain, stop all the Likewise services, manually delete /var/lib/likewise/db/registry.db, and then reinstall Likewise.
You can change a value in the registry by executing the set_value command with the shell. The following procedure demonstrates how to change the value of the PAM key's LogLevel entry. The procedure to change other keys is similar. After you modify a registry setting for a Likewise service, you must refresh the corresponding service with the Likewise Service Manager for the changes to take effect.
With the root account, start lwregshell:
/opt/likewise/bin/lwregshell
Change directories to the location of the PAM key and list its current settings:
[root@rhel5d bin]# ./lwregshell \> cd HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM> ls [HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM\] "DisplayMotd" REG_DWORD 0x00000001 (1) "LogLevel" REG_SZ "error" "UserNotAllowedError" REG_SZ "Access denied"
Execute the set_value command with the name of the value as the first argument and the new value as the second argument:
HKEY_THIS_MACHINE\services\lsass\Parameters\PAM> set_value LogLevel debug
List the key's value entries to confirm that the value was changed:
HKEY_THIS_MACHINE\services\lsass\Parameters\PAM> ls [HKEY_THIS_MACHINE\services\lsass\Parameters\PAM\] "DisplayMotd" REG_DWORD 0x00000001 (1) "LogLevel" REG_SZ "debug" "UserNotAllowedError" REG_SZ "Access denied"
Exit the shell:
HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM> quit
After you change a setting in the registry, you must use the Likewise Service Manager -- lwsm -- to force the service to begin using the new configuration. Because we changed a configuration of the lsass service, we must refresh it by executing the following command with super-user privileges:
/opt/likewise/bin/lwsm refresh lsass
This section shows you how to modify several common Likewise settings by using the registry shell: the default domain, the home directory, and the shell.
As root or with sudo, start the registry shell:
/opt/likewise/bin/lwregshell
Change directories to the following location:
cd HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory
Change the shell to, for example, bash:
set_value LoginShellTemplate /bin/bash
For more information, see Set the Home Directory and Shell for Domain Users.
Set the option to use the default domain:
set_value AssumeDefaultDomain 1
Leave the shell:
quit
After you change a setting in the registry, you must use the Likewise Service Manager -- lwsm -- to force the service to begin using the new configuration. Because we changed a configuration of the lsass service, we must refresh it by executing the following command with super-user privileges:
/opt/likewise/bin/lwsm refresh lsass
Here's how the string of commands looks in the registry shell:
[root@rhel5d docs]# /opt/likewise/bin/lwregshell \> cd HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory> set_value AssumeDefaultDomain 1 HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory> set_value LoginShellTemplate /bin/bash HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory> quit [root@rhel5d docs]# /opt/likewise/bin/lwsm refresh lsass
You can also change a value in the registry by executing the set_value command from the command line. The following code block demonstrates how to change the value of the PAM key's LogLevel entry without using the shell. After you modify a registry setting for a Likewise service, you must refresh the corresponding service with the Likewise Service Manager for the changes to take effect.
/opt/likewise/bin/lwregshell ls '[HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM\]' [HKEY_THIS_MACHINE\\Services\lsass\Parameters\PAM] "DisplayMotd" REG_DWORD 0x00000001 (1) "LogLevel" REG_SZ "error" "UserNotAllowedError" REG_SZ "Access denied" /opt/likewise/bin/lwregshell set_value '[HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM\]' LogLevel debug /opt/likewise/bin/lwregshell ls '[HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM\]' [HKEY_THIS_MACHINE\\Services\lsass\Parameters\PAM] "DisplayMotd" REG_DWORD 0x00000001 (1) "LogLevel" REG_SZ "debug" "UserNotAllowedError" REG_SZ "Access denied"
When you're unsure where to find a setting that you want to change, you can export the registry's structure to a file and then search the file for the value entry's location.
Important: You must export the registry as root.
With the root account, start lwregshell:
/opt/likewise/bin/lwregshell
In the shell, execute the export command with the root key as the first argument and a target file as the second argument:
export HKEY_THIS_MACHINE\ lwregistry.reg
The file is exported to your current directory unless you specify a path.
In a text editor such as vi, open the file to which you exported the registry and search for the entry that you are want to find.
This section lists value entries in the registry's lsass branch.
There is a LogLevel value entry under several keys, including lsass/Parameters and PAM. Although the default value is typically error, you can change it to any of the following values: disabled, error, warning, info, verbose.
Locations
[HKEY_THIS_MACHINE\Services\lsass\Parameters]
[HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM]
Value Entry
LogLevel
Example with default value:
"LogLevel"="error"
You can capture information about authentication transactions, authorization requests, and other security events by turning on event logging. For information about managing and viewing events, see Monitoring Events with the Event Log.
Note: With Likewise Enterprise, you can manage this setting by using a Likewise group policy; see Turn on Event Logging with a GPO.
Location
[HKEY_THIS_MACHINE\Services\lsass\Parameters]
Value Entry
EnableEventlog
Example with default value:
"EnableEventlog"=dword:00000000
After you turn on event logging, network connection events are logged by default. On laptop computers, computers with a wireless connection, or other computers whose network status might be in flux, you can turn off event logging so that the event log is not inundated with connectivity events.
Note: With Likewise Enterprise, you can manage this setting by using a Likewise group policy; see Turn Off Logging of Network Events.
Location
[HKEY_THIS_MACHINE\Services\lsass\Parameters]
Value Entry
LogNetworkConnectionEvents
Example with default value:
"LogNetworkConnectionEvents"=dword:00000001
With Likewise Open and Likewise Enterprise, you can require that a user be a member of a group to log on a computer, or you can limit logon to only the users that you specify. With Likewise Enterprise, you can also restrict logon rights with a Likewise group policy; see Allow Logon Rights in the Group Policy Administrators Guide. Likewise checks require_membership_of information in both the authentication phase and the account phase.
Location
[HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory]
Value Entry
RequireMembershipOf
Notes
Add each user or group to the value entry by using an NT4-style name (the short domain name with the group name) or an Active Directory security identifier (SID). Aliases are not supported. The entries must be in the form of a list of quoted entries: Each entry must be enclosed in quotation marks. A slash character must be escaped by being preceded by a slash. Example:
"RequireMembershipOf"="likewisedemo\\support" "likewisedemo\\domain^admins" "likewisedemo\\joe" "S-1-5-21-3447809367-3151979076-456401374-513"
Only the users that you specify and the users who are members of the groups that you specify are allowed to log on the computer.
You can set Likewise to display an error message when a user attempts to log on a computer without the right to access it. With Likewise Enterprise, you can manage this setting by using a Likewise group policy; see Display a Message of the Day at Logon in the Likewise Enterprise guide.
Location
[HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM]
Value Entry
UserNotAllowedError
Notes
Add the text of the error message that you want to display to the value of the entry. Example with default value:
"UserNotAllowedError"="Access denied"
You can set Likewise to display a message of the day. It appears after a user logs on but before the logon script executes to give users information about a computer. The message can, for instance, remind users of the next scheduled maintenance window.
With Likewise Enterprise, you can manage this setting by using a Likewise group policy; see Display a Message of the Day at Logon in the Likewise Enterprise guide.
Location in registry:
[HKEY_THIS_MACHINE\Services\lsass\Parameters\PAM]
Value Entry
DisplayMotd
Example with the value set to 1, or true, to display a message:
"DisplayMotd"=dword:00000001
The default domain separator character is set to \. So, by default, the Active Directory group DOMAIN\Administrators appears as DOMAIN\administrators on target Linux and Unix computers. The Likewise authentication daemon renders all names of Active Directory users and groups lowercase.
You can, however, replace the slash that acts as the separator between an Active Directory domain name and the SAM account name with a character that you choose by modifying the DomainSeparator value entry in the registry.
The following characters cannot be used as the separator:
alphanumeric characters -- letters and digits
@
#
And not the character that you used for the space-replacement setting; for more information, see Change the Replacement Character for Spaces.
Location
[HKEY_THIS_MACHINE\Services\lsass\Parameters]
Value Entry
DomainSeparator
Example entry with default value:
"DomainSeparator"="\\"
Notes
In the default value, the slash character is escaped by the slash that precedes it.
The default replacement character is set to ^. So, by default, the Active Directory group DOMAIN\Domain Users appears as DOMAIN\domain^users on target Linux and Unix computers. You can, however, replace the spaces in Active Directory user and group names with a character that you choose by editing the SpaceReplacement value entry in the registry.
With Likewise Enterprise, you can manage this setting with a Likewise group policy; see Replace Spaces in Names with a Character in the Likewise Enterprise guide.
Location
[HKEY_THIS_MACHINE\Services\lsass\Parameters]
Value Entry
SpaceReplacement
Example with default value:
"SpaceReplacement"="^"
Notes
The following characters cannot be used as the separator:
whitespace -- spaces and tabs
alphanumeric characters -- letters and digits
@
\
#
The Likewise authentication daemon renders all names of Active Directory users and groups lowercase.
With Likewise Open and Likewise Enterprise, you can specify whether a joined computer synchronizes its time with that of the domain controller. By default, when a computer is joined to a domain without using the notimesync command-line option, the computer's time is synchronized with the domain controller's when there is a difference of more than 60 seconds but less than the maximum clock skew, which is typically 5 minutes. With Likewise Enterprise, you can manage this setting by using a Likewise group policy; see Turn Off System Time Synchronization with a GPO in the Likewise Enterprise guide.
Location
[HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory]
Value Entry
SyncSystemTime
Example with default value:
"SyncSystemTime"=dword:00000001
If your Active Directory environment has only one domain, you can set Likewise to assume the default domain, liberating users from typing the domain name before their user or group name each time they log on a computer or switch users. With Likewise Enterprise, you can manage this setting by using a Likewise group policy; see Prepend Domain Name for AD Users and Groups in the Likewise Enterprise guide.
Location
[HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory]
Value Entry
AssumeDefaultDomain
Example with default value:
"AssumeDefaultDomain"=dword:00000000
When you install Likewise on a Linux, Unix, or Mac computer but not on Active Directory, you cannot associate a Likewise cell with an organizational unit, and thus you have no way to define a home directory or shell in Active Directory for users who log on the computer with their domain credentials. To set the home directory and shell for a Linux, Unix, or Mac computer that is using Likewise Open or Likewise Enterprise without cell, edit the value entry in registry.
If you use Likewise Enterprise to set the shell and home directory both in Active Directory and in the registry, the settings in Active Directory take precedence.
After you change the home directory or shell in the registry, you must clear the Likewise authentication cache, log off, and then log on before your changes will take effect.
In the lsass branch, there are two keys that contain value entries for the home directory and shell. One is for the local provider, the other is for the Active Directory provider. Locations:
[HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory]
[HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\Local]
The following value entries for the home directory and shell, shown with their default settings, appear under both the Active Directory and Local provider keys:
"LoginShellTemplate"="/bin/sh" "HomeDirTemplate"="%H/local/%D/%U" "HomeDirPrefix"="/home" "CreateHomeDir"=dword:00000001
Under the key for a provider, modify the value of the following entry to set the shell that you want:
LoginShellTemplate
Example with default value:
"LoginShellTemplate"="/bin/sh"
Note: /bin/bash might not be available on all systems.
You can modify the HomeDirTemplate value entry to set the home directory that you want by using three variables:
|
Variable |
Description |
|
|
The default user name. It is required. |
|
|
The default domain name. It is optional. |
|
|
The default home directory. It is optional. If used, it must be set as an absolute path. This value, if used, is typically the first variable in the sequence. |
| The hostname of the computer. It is optional. |
Here's an example with all four variables set: %H/%L/%D/%U
Example with default value:
"HomeDirTemplate"="%H/local/%D/%U"
In the example above, the HomeDirTemplate is using the %H variable for the HomeDirPrefix to set the user's home directory. In the example, the HomeDirPrefix is not preceded by a slash because the slash is included in the default HomeDirPrefix to ensure that the path is absolute. By default, the %H variable automatically changes to be compatible with the operating system to generate a home directory path. On Solaris, for example, the %H variable maps to /export/home. On Mac OS X it maps to /Users; on Linux, it maps to /home.
Optionally, you can set the HomeDirPrefix by changing the prefix to the path that you want. However, the HomeDirPrefix must be an absolute path -- so you must precede it with a slash. Example with default value:
"HomeDirPrefix"="/home"
You must use the default user name variable (%U). You may specify the default domain name by using the domain name variable (%D), but it is not required.
All the users who log on the computer by using their Active Directory domain credentials will have the shell and home directory that you set under the Providers\ActiveDirectory key. All the users who log on the compu