I have an SSH server running 9.10 Karmic that suddenly won't connect to the Internet or to my other servers. (including the NIS/NFS server that it mounts /home from). I have tried pinging other devices but everything comes back as "host unreachable". I don't think that there are any problems with the actual connection to the computer itself (ie from the wall to the NIC).
The most descriptive thing I have found so far came when I tried an /etc/init.d/networking restart:
Does this ring any bells for anyone?
Restarting openntpd: invoke-rc.d: initscript openntpd, action "force-reload" failed.
run-part: /etc/network/if-up.d/openntpd exited with return code 1