Recently I've setup a Ubuntu Linux client for a UCS server, according to the manual https://docs.software-univention.de/domain-4.2.html#ext-dom-ubuntu .
It's working well: the domain users can logon to the client, and they can easily connect to shared folders on the UCS server or on other Windows-based computers in the domain.
However, what about the opposite direction? I would also like to share some folders on the Linux client. Unfortunately I didn't find any documentation on setting up Samba to do that.
It might be possible to treat the UCS server (which is running AD services) as a Windows server and have Samba join the AD domain, but I don't think that would play together well with the Linux integration used before..?