> I wish to add a secondary DNS server. Adding the IP address to the DNS > section in system-config-network appears to work, but after saving the > config and rebooting, the newly-added IP address has vanished. > > So, what am I doing wrong? <snip> Check the zone file. If the address isn't there then the procedure you used didn't work, also make sure the process you used updated the serial number in the zone file. When I ran DNS servers I used a Perl script to update the serial number and most of the zone file updates, including adding authoritative DNS servers, was accomplished via manual editing. I have never used the RedHat whiz bang scripts so on your precise question I can be no help. dlg