I have an apache HTTPD server that i keep running 24/7 . The problem is the server will sometimes freeze up entirely. The server is ubuntu 11.10 normal (not server) edition (i just can't work with a command prompt). It runs amazingly great, but if i leave it on for long periods of time, when I return to the computer and enter my password i cannot interact with anything at all . I'm certain the problem doesn't lie with ubuntu itself since ubuntu works great on my non-server computer, and im certain it's not overheating since i have multiple fans atttached to the thing. What else could it be?
I didn't explain well enough what exactly I mean by "the computer freezes up". I get to my desktop, and I can move my mouse, but i cannot interact with anything. I cannot click on anything, I cannot type on anything. I cannot do anything except force a shutdown. (Just pressing the power button doesn't bring up a visible dialog.)
System specs: 1.74Ghz Intel Pentium CPU, 2GB RAM, 250GB HDD.
Also, the system freezing is extremely unpredictable. It won't hang if i leave it running for a set amount of time, it only might hang if i leave it on for a while.