38.4. Adding a new IdM ID range


In some cases, you may want to create a new IdM ID range in addition to the original one; for example, when a replica has run out of IDs and the original IdM ID range is depleted.

重要

Adding a new IdM ID range does not create new DNA ID ranges automatically. You must assign new DNA ID ranges to replicas manually as needed. For more information about how to do this, see assigning DNA ID ranges manually.

Procedure

  1. To create a new IdM ID range, use the ipa idrange-add command. You must specify the new range name, the first ID number of the range, the range size, and the first RID number of the primary and secondary RID range:

    # ipa idrange-add IDM.EXAMPLE.COM_new_range --base-id 5000 --range-size 1000 --rid-base 300000 --secondary-rid-base 1300000
    
    ipa: WARNING: Service dirsrv@IDM-EXAMPLE-COM.service requires restart on IPA server <all IPA servers> to apply configuration changes.
    ------------------------------------------
    Added ID range "IDM.EXAMPLE.COM_new_range"
    ------------------------------------------
      Range name: IDM.EXAMPLE.COM_new_range
      First Posix ID of the range: 5000
      Number of IDs in the range: 1000
      First RID of the corresponding RID range: 300000
      First RID of the secondary RID range: 1300000
      Range type: local domain range
  2. Restart the Directory Server service on all IdM servers in the deployment:

    # systemctl restart dirsrv@IDM-EXAMPLE-COM.service

    This ensures that when you create users with UIDs from the new range, they have security identifiers (SIDs) assigned.

  3. Optional: Update the ID range immediately:

    1. Clear the System Security Services Daemon (SSSD) cache:

      # sss_cache -E
    2. Restart the SSSD daemon:

      # systemctl restart sssd
      注記

      If you do not clear the SSSD cache and restart the service, SSSD only detects the new ID range when it updates the domain list and other configuration data stored on the IdM server.

Verification

  • You can check if the new range is set correctly by using the ipa idrange-find command:

    # ipa idrange-find
    ----------------
    2 ranges matched
    ----------------
      Range name: IDM.EXAMPLE.COM_id_range
      First Posix ID of the range: 882200000
      Number of IDs in the range: 200000
      Range type: local domain range
    
      Range name: IDM.EXAMPLE.COM_new_range
      First Posix ID of the range: 5000
      Number of IDs in the range: 1000
      First RID of the corresponding RID range: 300000
      First RID of the secondary RID range: 1300000
      Range type: local domain range
    ----------------------------
    Number of entries returned 2
    ----------------------------
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