I have successfully joined a CentOS 7 server to a Windows Server 2012R2 domain: domain1.local. This domain hosts test server objects that we've created for experimentation.

domain1.local is the trusting party to another Windows Server 2012R2 domain: ent.com The Trust Type is "Forest" and it is transitive.

For Windows servers, users in ent.com can access objects in domain1.local without any sort of problem. My CentOS server authenticate users in ent.com, though.

I joined the domain1.local domain on CentOS as follows:

realm join -U 'administrator@DOMAIN1.LOCAL' -v and am able to get information for users and groups that exist in DOMAIN1.LOCAL using things like id and kinit.

My assumption is that it has something to do with the way the trust is set up and how I've joined my CentOS server to the domain, but I'm not exactly sure what I need to do.

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