I have installed RedHat 7.3 Server to replace the old RedHat 6.2. The replacement went well and the new 7.3 worked fine for about a month. Then it started to act strangely.
It crashes randomly. When the system crashes I can ping it, but no other traffic goes through. Apache, sendmail, ssh, bind don't response. It must be rebooted. On the console it also acts strangely because no one can login or see what is wrong.
I have looked at the log files and there is nothing I could relate to a crash. When the system crashes it stops to write anything into log files.
The systems runs Apache with mod_ssl, mod_php; sendmail and other standard programs included in RedHat distribution.
The only programs that are somehow suspicious (not from RedHat distribution) are some program for e-store and RealMedia Server.
When the system crashed for the second time I took another computer, took the disks from the server and put them in another computer to eliminate hardware problem. The first computer was some duron processor the second one that now worked for a month is som athlon. It worked nearly for a month and now it crashed two times in three days.
I have installed the newest patches with up2date utility from RedHat.
The computer has RealNetworks networks cards with "dmfe" driver. This cards with the same driver work fine in many another 6.2 and 7.2 servers.
Where to look for error? Should I install RedHat 7.2 which works fine on another Intel server for some time wihtout any problems. This is the first time I used AMD. Is it possible that the problem is in the processor? Maybe I should switch to Intel.
I have looked on internet to find any information if someone has the same problem. I have found nothing.