I just upgraded a Debian system from stretch to buster and systemd isn't starting the sshd daemon. I can start and stop the daemon via /etc/init.d/sshd [start|stop] but shortly after that, the daemon dies. journalctl reports this error near the end of my log Failed to connect to system bus. starting sshd via /usr/sbin/sshd -ddd works fine.
pam_systemd(sshd:session): Failed to connect to system bus: No such file or directory
I've had issues in the past with systemd and ssh and this seems like a different problem. I"ve added /usr/lib/tmpfiles.d/sshd.conf (which was missing) with this:
# cat /usr/lib/tmpfiles.d/sshd.conf
d /run/sshd 0755 root root
but when I run systemd-tmpfiles --create I get this error. It looks like this is saying something is wrong with the Nagios systemd configuration....which is screwing up sshd..? the directories /var/run/nagios and /run/nagios both exist. Anyone have an interpretation for this error message?
[/usr/lib/tmpfiles.d/nagios-nrpe-server.conf:2] Line references path below legacy directory /var/run/, updating /var/run/nagios → /run/nagios; please update the tmpfiles.d/ drop-in file accordingly.
