It would help if we knew exactly what you are dealing with.
Can you try to find out what distro+version, also model/make of server and NIC.
Not sure what cmds would be for RH that old, but try these or similar
Code:
uname -a
cat /etc/*release*
dmesg
cat /var/log/dmesg
cat /var/log/boot.log
cat <wherever the ifcfg-eth0 file is)
You get the general idea...
This page may help a bit
https://en.wikipedia.org/wiki/Red_Ha...ersion_history