I'm running an Ubuntu 10.04 (x64) as a web/mysql server.
The server became unresponsive to SSH, Ping, HTTP etc. and the technician with physical access to the machine sent me this screengrab here:
from the connected monitor before he rebooted (and the situation is fixed). I'm not sure what log this information is kept in as I can't find the text after checking the logs after reboot.
Can anyone help me to investigate what happened to try and ensure it doesn't happen again?