Here's a somewhat common scenario; you're running Exchange 2003. You'd like to be running Exchange 2007. Perhaps you'd like a firewall? Maybe you want Exchange 2007 AND a firewall on the same server.
What to choose, what to choose. Actually your choices are simple. Exchange 2003 only runs on 32-bit Server 2003 or Server 2000. If you want Exchange 2007 you need a 64-bit OS. If you want ISA 2006 you need a 32-bit Server 2003. If you want ISA's successor Forefront TMG your only option is 64-bit Server 2008. Oh, and Forefront TMG is still in beta.
Best practices aside, it's quite common for smaller organizations to cram as many services onto a single server as possible, and that's a bit more difficult now.
Many of you looking at this are probably asking yourselves "Boy, how did Corey create such a breathtakingly awesome Venn diagram". Well wonder no more, I make my diagrams in Photoshop bitches.
Tags: Exchange, Firewall, ISA, Microsoft, Windows
