I've had an 11.10 server up for several months now. Its got lxde installed and hosts a Windows 7 VM and runs Marsienne Prime from GIMPS in the background.
Over the past two days, each morning when I check the server, the hardware is running but I cannot rouse the machine. I'm not able to ssh into it either, getting the "no route to host" message. I've had to restart it each time.
I'm looking for clues as to why this could be happening. I've checked through most everything in /var/log, but I'm not seeing anything.
Where else should I look?