37.3. Overriding Default Trust View attributes for an AD user on an IdM client with an ID view
You might want to override some POSIX attributes from the Default Trust View for an Active Directory (AD) user. For example, you might need to give an AD user a different GID on one particular IdM client. You can use an ID view to override a value from the Default Trust View for an AD user and apply it to a single host. This procedure explains how to set the GID for the ad_user@ad.example.com AD user on the client1.idm.example.com IdM client to 732001337.
Prerequisites
- You have root access to the IdM client system.
-
You are logged in as a user with the required privileges, for example the
adminuser.
Procedure
On the IdM server, create an ID view. For example, to create an ID view named example_for_client1:
$ ipa idview-add example_for_client1 --------------------------- Added ID View "example_for_client1" --------------------------- ID View Name: example_for_client1On the IdM server, sdd a user override to the example_for_client1 ID view. To override the user’s GID:
-
Enter the
ipa idoverrideuser-addcommand - Add the name of the ID view
- Add the user name, also called the anchor
-
Add the
--gidnumber=option:
$ ipa idoverrideuser-add example_for_client1 ad_user@ad.example.com --gidnumber=732001337 ----------------------------- Added User ID override "ad_user@ad.example.com" ----------------------------- Anchor to override: ad_user@ad.example.com GID: 732001337-
Enter the
On the IdM server, apply
example_for_client1to theclient1.idm.example.comIdM client:$ ipa idview-apply example_for_client1 --hosts=client1.idm.example.com ----------------------------- Applied ID View "example_for_client1" ----------------------------- hosts: client1.idm.example.com --------------------------------------------- Number of hosts the ID View was applied to: 1 ---------------------------------------------注記The
ipa idview-applycommand also accepts the--hostgroupsoption. The option applies the ID view to hosts that belong to the specified host group, but does not associate the ID view with the host group itself. Instead, the--hostgroupsoption expands the members of the specified host group and applies the--hostsoption individually to every one of them.This means that if a host is added to the host group in the future, the ID view does not apply to the new host.
On the IdM client, clear the entry for the
ad_user@ad.example.comuser from the SSSD cache on theclient1.idm.example.comIdM client. This removes stale data and allows the new override value to apply.# sssctl cache-expire -u ad_user@ad.example.com
Verification
SSHto the client system as ad_user@ad.example.com:# ssh ad_user@ad.example.com@client1.idm.example.comOn the client system, retrieve information for the
ad_user@ad.example.comuser to verify the GID reflects the updated value.[ad_user@ad.example.com@client1 ~]$ id ad_user@ad.example.com uid=702801456(ad_user@ad.example.com) gid=732001337(admins2) groups=732001337(admins2),702800513(domain users@ad.example.com)