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UNAB Known Issues

This section describes known issues for UNAB.

uxconsole -register Returns Incorrect Active Directory Site Name

UNAB registration command returns an incorrect Active Directory server name if the Active Directory server is a member of a forest.

To workaround this issue, run uxconsole -register command with the -t site argument and specify the Active Directory site to that contains the DCs that UNAB uses to communicate with Active Directory.

Hot Fix for Microsoft Windows Server 2003 to Improve Performace

Valid on Windows Server 2003 SP1, Windows Server 2003 64 Bit

LDAP queries fails to return Active Directory queries results for extended search using LDAP_MATCHING_RULE_IN_CHAIN.

To workaround this issue, install the latest service pack for MIcrosoft Windows 2003 Server or disable the UNAB group update during log in by setting the wingrp_update_login token to no.

Note: For more information, see Microsoft Knowledge Base article 914828.

You Cannot Use the CA Access Control UNIX Attributes Plug-in to Set Empty GECOS Attributes

You cannot use the CA Access Control UNIX Attributes Plug-in to set an empty GECOS attribute to an Active Directory user.

Uxpreinstall Utility Fails to Verify Host Name Resolution

The uxpreinstall utility fails to verify the host name resolution after you install UNAB and before you register with Active Directory.

To work around this problem, use the -d argument to specify the Active Directory domain name. For example:

./uxpreinstall -d domain_name
Uxpreinstall Utility Reports Host Name Resolution Error

Valid on AIX

The uxpreinstall utility reports a host name resolution error when /etc/netsvc.conf file does not contain the DNS data source.

Uxconsole -manage -group is Case Sensitive

The group name in the -manage -group <groupname> command is case sensitive.

Incorrect Conflict Message During Users Migration

During the users migration process, an incorrect conflict message appears reporting a mismatch when comparing a UNIX user that is not assigned GECOS parameters with the corresponding Active Directory user account.

Telnet and rlogin Programs Not Displayed in Audit Records

Valid on Linux, HP-UX

The UNAB audit records do not display the telnet and rlogin login programs. In LInux, the UNAB audit records show "remote" instead of telnet or rlogin. On HP-UX the UNAB audit records show "login" instead of telnet or rlogin.

Core Dump When Registering Host with Active Directory

Valid on AIX 5.3

If the /etc/resolv.conf file does not contain the Active Directory server name, an attempt to register the host with Active Directory results in a core dump.

Interval between uxconsole -register and -deregister Commands

If you register then deregister a UNAB host in Active Directory, after you register the host, we recommend that you wait the time necessary for domain controller replication before you deregister the host.

Note: If you deregister a UNAB host, policies that were not distributed are deleted.

New Domain User Login May Fail on First Attempt

Valid for SSH

If you create a user in Active Directory and the new user immediately tries to log in to a UNAB endpoint, the first login attempt fails but subsequent login attempts succeed. The first login attempt fails because the user is not known to the endpoint. However, during the failed login process, uxauthd updates the local NSS storage with the user information. Subsequent login attempts succeed because the user is now known to the endpoint.

By default, uxauthd updates the user information in the NSS storage every hour. If the new user tries to log in to the endpoint after uxauthd updates the NSS storage, the login succeeds.

Rlogin Entries Logged Twice

Valid on Linux

If you log in to a host that has UNAB installed using rlogin, the login attempt appears in the audit twice.

Login Services Bypass PAM on SSO Login

Several login services bypass PAM on SSO login. The login policy is not applied and audit events are not generated.

Successful Login to Host Generates an Error Message

Valid for Linux, AIX, HP-UX

A limitation in the UNIX PAM flow results in logging a successful login to a UNAB host as an error message, indicating that account authentication failed in the syslog file.

"Given password does not match OS Password" Message When Issuing Check Login Command

Valid on Solaris, Linux, HP-UX

The "Given password does not match OS password" error message appears when you issue the checklogin command for Active Directory user that is not authorized to log in. This message is displayed instead of the actual login deny message.

Password Mismatch Message When Changing Password Using sepass

Valid on AIX 5.3

A password mismatch error message appears when a mapped user attempts to change an account password using sepass. Regardless of the error message, the account password is changed on Active Directory.

Active Directory User Cannot Change Password on Solaris

Due to Sun Solaris password limitations, users that are logging in to the UNIX host with Active Directory account, cannot change their account password using Solaris passwd tool. If the user must change the account password on the first login, the user must login from a system other than Solaris.

If UNAB is running on the UNIX host, use the following command to change the local account password:

passwd -r files username

If CA Access Control is running on the UNIX host, use the sepass utility to change the local account password.

Impersonating an Active Directory User Does Not Create Audit Record

If you impersonate an Active Directory user using su, the impersonation attempt is not audited.

sshd Program Name Appears in Audit Records of SFTP Sessions

The audit records of login sessions done using sftp program can display the sshd daemon in the program field and not the sftp program.

UNAB Entries Contain Blank Fields in Event Viewer

UNAB events are displayed in the Windows Event Viewer with blank fields.

FTP SSO Login of Enterprise Users Not Audited

Valid for Solaris

Kerberized FTP and telnet programs bypass the PAM stack and therefore, UNAB does not audit FTP and telnet SSO logins of enterprise users.

Duplicate Audit Records Produced for rlogin by Domain User on Linux SuSE Endpoints

Valid on Linux SuSE

If you implement UNAB in full integration mode on a Linux SuSE endpoint, and a domain user uses rlogin to log in to the endpoint, UNAB creates two audit records for the same login event.

Deregistering SSO Enabled UNAB Does Not Delete Records from Keytab File

When you deregister a UNAB host that was previously registered with SSO enabled, the computer object is removed from Active Directory, but the corresponding records are not deleted from the keytab file. If you attempt to register the UNAB host again, the Kerberos ticket is not created.

To overcome this problem, we recommend that you do not deregister UNAB hosts, or remove the keytab file if it is used by UNAB hosts only.

HP-UX Does Not Support @ Symbol in Passwords

Valid on HP-UX

Due to an HP-UX limitation, do not use the @ symbol in passwords on HP-UX endpoints.

HP-UX Does Not Support Fully Qualified Domain Name Login

Valid on HP-UX

You cannot log into a HP-UX host with a fully qualified domain name, for example: user@domain.