One other point as you have a Firewall in place. You might have to do some
port mapping, so if a DNS query comes to the Firewall, then you should
program the Firewall to pass it through to the appropriate server address.
Same for SMTP and POP3, which in your case will be the same address as the
DNS server.
It depends on what sort of Firewall you have - if its a combo
Router/Firewall, then you'll have to do that. If its a standalone Firewall
you might have to direct DNS and Mail calls to the servers if they are in
the DMZ
Thanks for the suggestions. I am not changing the setup of anything, just
the IP address. I currently have mail set up on the DMZ. I was planning on
just keeping the exact same configuration but with the new IP addresses.
