Greetings. I have a Web and Exchange server that I want to move behind an ISA 2004 Firewall. The two servers have public addresses that are associated with their own DNS records. Example:
mail.domain.com = XXX.XXX.XXX.XXX
web.domain.com = XXX.XXX.XXX.XXX
Currently these servers have two NIC's one public and one private. The ISA server is a third server. My question is, once I move these two servers behind the ISA where do I put the public IP addresses? Do I need to add them to the ISA servers and keep only internal IP on the servers or do I keep them on each server and redirect traffic there. I'd like for ISA to control the traffic going to these boxes. What would be my best and mosrt secure option?