Ucs5 join dns error

[mbaumer]

Hi,
I hope this might help:

Domain join tool fails on ubuntu 20.04

Hi, i have a problem with the domain join tool to join ubuntu machines into my server. Ive got different ubuntu machines i like to join, they are somewhat vanilla Ubuntu 20.04.2 LTS. On the first machine i have to check the “Set UCS DC as DNS Server” and it wokred like a charm. However, on the next machine the tool started to fail "The domain join failed The UCS master name [MY NAME] could not be resolved. Could someone help me about this ? Probably something in the DNS/network manager. Be…