5.10. Enabling the tracking of last successful Kerberos authentication for users in IdM


For performance reasons, Identity Management (IdM) running in Red Hat Enterprise Linux 8 does not store the time stamp of the last successful Kerberos authentication of a user. As a consequence, certain commands, such as ipa user-status, do not display the time stamp.

Prerequisites

  • You have obtained the ticket-granting ticket (TGT) of an administrative user in IdM.
  • You have root access to the IdM server on which you are executing the procedure.

Procedure

  1. Display the currently enabled password plug-in features:

    # ipa config-show | grep "Password plugin features"
      Password plugin features: pass:quotes[AllowNThash], pass:quotes[KDC:Disable Last Success]

    The output shows that the KDC:Disable Last Success plug-in is enabled. The plug-in hides the last successful Kerberos authentication attempt from being visible in the ipa user-status output.

  2. Add the --ipaconfigstring=feature parameter for every feature to the ipa config-mod command that is currently enabled, except for KDC:Disable Last Success:

    # ipa config-mod --ipaconfigstring='AllowNThash'

    This command enables only the AllowNThash plug-in. To enable multiple features, specify the --ipaconfigstring=feature parameter separately for each feature.

  3. Restart IdM:

    # ipactl restart
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