We have a PIX firewall and we want to use 1 DNS server. The DNS server is behind the firewall. When we do a DNS command, it returns the external IP address. We need it to give us the internal IP address so that we can access the server. If we try to access with the external IP address, it doesn't work. We have added the alias commands to the firewall but that doesnt' fix the problem because the request doesn't run through the firewall.