banned_9-26-2021
Somehow by transplanting my installation to another machine I got stuck with the wrong hostname
After changing it in /etc/hostname and looking around dhcpd, which was inactive originally, and after rebooting a few times, setting it with hostname -F /etc/hostname in console came the new name
Then I started X and on the shell there still was the old one.
I don't know how and when but it changed itself after messing with everything I could find.
So the question remains? How is the hostname set?