My headless Ubuntu (11.10) crashed. When I plug in keyboard and monitor, I see an non-interactive cursor (no blink) on a black screen. SSh, telnet don't work from other machines. Ping works.
I have restarted the machine. How could I check the log files of the last session, so I can know more about this crash?
/var/log
ls -lta /var/log
will give you an idea of which files are new.