Hi Sumit,
Thank you for the answer. The same setup works without issues on all Ubuntu 18.04 systems
with sssd 1.16.1. I overwrite only the UID and the primary gid is generated automatically
by IPA (a long number).
The problem is with the Ubuntu 20 and sssd 2.2.3 , therefore I cannot enrol any Ubuntu 20
systems. I ended up with an unfunctional setup and I have no clue what/where to change
anything in order to have it working for both versions of Ubuntu and sssd.
Any help would be really appreciated.