Hello everybody, 

I try to make the above  combination to work in my environment , and already 
spent several weeks + open a few threads with different sort of issues. So far, 
I can  say that it works only with workarounds , restarts, clear caches, etc , 
which is not the setup I can move in production with. 

I try to provide the latest update of the setup and the issues I am currently 
facing:

RedHat Idm with AD trust configured (non-posix)
Default Trust View configured which overrides the UID and GID of the AD users
The UID and GID do exist in Active Directory (the user and group have the same 
name) , although the group name is in different OU - I do not know if this is 
an issue or not

On the client, some of the users are resolved, some not. If I manually run 
getent group <username> before running the id command, it does resolve the 
group and user. Without running getent group command, sometimes it resolves, 
sometimes not.  

I checked the logs on the client and server and the errors I noticed when 
running id <username> are:

on the client:
[ipa_s2n_exop_done] (0x0040): ldap_extended_operation result: No such 
object(32), (null)

on the server:
[nss] [nss_protocol_fill_initgr] (0x0080): Unable to find primary gid [2]: No 
such file or directory

It seems to be related to the magical primary GID which seems to be the source 
of all my issues, but I. have no idea how to fix it (the GID exist in AD and it 
is defined in the Default Trust View). I am considering even changing settings 
in AD, but I do not know what should I change. 

I tried to define as well all the AD groups (for which I do group override in 
Default Trust View) in IPA as posix groups with that specific GID . In that 
situation for some users the lookup failed first time but after the negative 
cache expired or sssd is restarted the lookup for the user and group works 
properly (situation was quite similar with the one in the thread 
https://lists.fedorahosted.org/archives/list/[email protected]/thread/VHTB3GR65L77SS7CS5H4GWHRMBIKQWXP/
 ).

For AD users which do not have attributes overwritten everything works 
properly. 
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