After updating to 4.3.0, we no longer seem able to login to our MSSQL databases. They are hosted on a Win10 machine joined to an AD (originally taken over by UCS). The Event Viewer log on the MSSQL server show the following error messages: Login failed. The login is from an untrusted domain and c…

Ok, it looks like the firewall of the UCS 4.3 Samba/AD DCs is blocking TCP ports dynamically allocated by Samba 4.7. In our lab we found that similar issues with other services (RDP and share access) could be fixed by the following adjustment, so we would suggest to check if this also fixes the issu…

MSSQL Server access fails to authenticate using kerberos after 4.3 upgrade

UCS - Univention Corporate Server

Moritz_Bunkus April 4, 2018, 11:31am 2

Hey,

other users seem to have the same or a similar issue (thread is in German):

So far we haven’t been able to pin it down, nor do we have a workaround at this point.

Kind regards,
mosu