Problem
Logging in through ssh with a key works flawless. But with password the logon is refused.
Environment
This happens only in special UCS environments where the package univention-samba-slave-pdc
is installed.
If you do not have this package installed (verify by dpkg -l| grep samba-slave-pdc
) this article does not match for your problem.
Password based authentication for ssh is not disabled and should work.
Solution
Restart the Heimdahl Kerberos server by:
/etc/init.d/heimdal-kdc stop
/etc/init.d/heimdal-kdc start