Dear experts, this is eating my brain! So many things could be solved, but now nobody can use the system any more at all.
This time it is no network problem (ssh login worked from/to any server) nor is it a CPU load issue. It started like this: About 8 users were able to login from their thin clients. Then repeted tries were necessary until login worked - otherwise after 3 or 4 seconds the login dialog reappeared without any message. From the teacher's PC (a workstation) I couldn't log in at all. So the problem seems to be either from tjener or from kde, as there was no error message. If I try to login as root using the RIGHT password, there is a message "no root logins allowed" whicht shows the authentification process is working. I scanned some files in /var/log for error messages: There was a message like: user "Lehrer" (teacher) -> kde authentification failed / logout Now, is it a ldap problem? Or is the link between kdm and ldap broken? As I didn't do any upgrades or updates when the error startet to occur, maybe there is a chance to reboot the servers and everything is ok. (I am at home now). Otherwise I could try to restore the backup from yesterday tommorrow... To avoid questions: yes, I did an apt-get upgrade on all servers an on the workstation without success. And the ltspserver is not the tjener. Thank you for any kind of fast help Greetings Ralf
