I need to upgrade a windows server 2003 machine to at least 2003 R2. I'd like to upgrade it all the way to 2008 R2. I just wanted to verify, 2008 R2 can join 2003 domains right? The other servers are 2003.


As long as your existing domain is at least at Windows server 2000 native domain functional level and 2008 is only going to be a member server & not a domain controller, you should be good.


We have two 2003 R2 DC servers and a few months ago I added a 2008 R2 DC, that works fine. Our functional level is 2003.


Sure can. The R2 machine is going to be a role server, and not a DC correct?

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