My firewall is experiencing severe problems but fortunately it is still passing packets to the web server. Eventually it may die which will cut off access to the web server. I can't look at it until after work today so if it dies, please hang in there.
It isn't good when this is what you get at the shell:
[ray@ennek bin]$ sh
sh-2.05$ ls
sh: /bin/ls: Input/output error
sh-2.05$ csh
sh: /bin/csh: Input/output error
sh-2.05$ mv
sh: /bin/mv: Input/output error
sh-2.05$ exit
exit
[ray@ennek bin]$ ls
bash: /bin/ls: Input/output error
[ray@ennek bin]$ mv
bash: /bin/mv: Input/output error
Well, I was right. The firewall died around 5:30.
Turned out to be the CPU fan. It just decided to quit working and the machine overheated. I replaced the fan and everything seems to be fine now.