I have an existing 2003 Server R2 box that is functioning as a domain controller and a file server.
I have a second 2003 Server R2 box that will be functioning as my Exchange box. It is the first instance of Exchange in the domain. Server R2 with SP2 is set up on this box. It's joined to the domain as a domain controller and DNS is configured on it. Replication works both ways. Exchange 2003 is installed with SP2.
I have an existing e-mail server - an old Linux box that's about to die. I'm not worried about migration... I'm going to manually move each user's e-mail over once the new server is up.
My real-world public MX record is set to the public IP of my router. Currently the router is NAT forwarding port 25 to my Linux e-mail server. I will be updating this to the Exchange server.
The internal FQDN of the Exchange box is: servername.domain.local
E-mail will be coming in on our public domain name: email@example.com
The domain.local and fulldomain.com are different. (It's not domain.local and domain.com)
When I telnet to the Exchange box using the internal IP, it shows servername.domain.local
However, when I briefly change the router NAT to forward to the Exchange server and then telnet to the public IP from an external connection, it still shows servername.domain.local
Obviously I need to set this so it shows as (mail?or servername).fulldomain.com (In this instance, should I just use the NetBIOS name of the mail server or is it best to use mail. ?)
Here's the question. Which DNS entries do I need to create? Sorry it took so many words to ask it but I wanted to provide a thorough background. (And make it easier for others to search for in the future.)
I'm hoping to get this box fully operational in the next day so any assistance is greatly appreciated.