well, configure the network in RH is easy...
i have the german version of rh9, so i only can tell you the german terms used.. but the menu is straight forward.. so will find the settings easy..
in the terminal start
redhat-config-network
then a menu will pop-up
in the first tab your network cards will be listed...
select the network card and press 'bearbeiten' ('edit')
then you can assign an ip adress or resolve an ip adress from an dhcp server.
when you have finished with the settings press 'OK'
back in the first menu, there is a tab called DNS, where you can setup your dns config.
ignore it if you selected to resolve your ip from an dhcp server.
finished