Hi! has anyone installed Red Hat 5 and tried to edit /etc/resolv.conf? In all other previous releases we were able to modify this file by hand now it states it is being managed by network manager and do not edit? How can we manually edit this file without having it clear the configuration the contents of this file each time we restart or restart network services?

I've manually edited the /etc/resolv.conf on my FC5 system with no issues. I've not seen the message you mention.

I just did "man NetworkManager" and it appears to be related to DHCP. Are you using DHCP to get your network address? If so it would overwrite your /etc/resolv.conf based on the information provided by the DHCP server every time it got an address. My system has a static IP so that is likely the difference.

I did once do this on a Debian system that I was doing dhcp for IP. On that system I found the dhclient.conf had a line for superseding domain name provided from the DHCP server:
I didn't supersede the servers but looking at the man page it looks like that can be done with:
Where each comma separated ipaddress is the IP of one of your name servers.

The file is dhclient.conf and was in /etc on Debian. It doesn't exist on my FC box so I'm not sure if it would be there or in /etc/sysconfig/networking or /etc/sysconfig/network-scripts (these latter two being where Redhat/Fedora usually have networking related files - they don't exist on Debian). I have the man pages on the FC system but no conf file since I don't have it doing dhcp. If you do have it you can find a sample dhclient.conf with:
rpm -ql dhclient

Thanks for the reply, I figured it out it was an error on my behalf I forgot to specify bootproto=static in the /etc/sysconfig/networ-scripts/eth0 config file. Therefore everytime I was running a service network restart it would clear the /etc/resolv.conf file when it picked up a dynamic IP and DNS address. I appreciate you helping me clear up this dilema now on to registering.