Chapter 17. Authentication and Interoperability

The System Security Services Daemon (SSSD) currently uses the IdM LDAP tree by default. As a consequence, it is not possible to assign sudo rules to non-POSIX groups. To work around this problem, modify the /etc/sssd/sssd.conf file to set your domain to use the compat tree again:

[domain/EXAMPLE]
...
ldap_sudo_search_base = ou=sudoers,dc=example,dc=com

As a result, SSSD will load sudo rules from the compat tree and you will be able to assign rules to non-POSIX groups.

Note that Red Hat recommends to configure groups referenced in sudo rules as POSIX groups. (BZ#1336548)

When configuring a new Active Directory (AD) trust on a newly installed system, the ipa-adtrust-install utility might report that the winbindd service terminated unexpectedly. Otherwise, ipa-adtrust-install completes successfully.

If this problem occurs, restart the IdM services by using the ipactl restart command after running ipa-adtrust-install. This also restarts winbindd.

Note that the full extent of the functional impact of this problem is still unknown. Some trust functionality might not work until winbindd is restarted. (BZ#1399058)

When nslcd, the local LDAP name service daemon, is started before the network connection is fully up, the daemon fails to connect to an LDAP server. As a consequence, resolving user or group identities does not work. To work around this problem, start nslcd after the network connection is up. (BZ#1401632)