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tomfontanillaFlag for United States of America

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Adding Windows 2008 R2 as, domain controller to Windows 2003 domain

I have 1 Window Server 2003 R2 64 bit SP2 and Window Server 2003 Standard E. 32 bit SP2. I would like to add new Window Server 2008 R2, and make it as the primary domain controller. I would then like to install DNS and DHCP on this new server, and point our exchange 2007 (no SP installed), SSL/VPN, Spam Firewall, and Firewall to this new Widow Server 2008 R2.
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Anuroopsundd
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You will require to do adprep /forestprep  for adding 2008 DC to your existing 2003 Domain.
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Impossible.  You cannot make the 2008 R2 server the Primary Domain Controller (PDC) because such a thing doesn't exist in Active Directory.

You CAN install 2008 R2 as a domain controller - the act of doing so should install DNS for you - and subsequently make it a global catalog, FSMO master, and DHCP server.

Why on earth would you be running Exchange 2007 with a service pack?  You should be fully patched - this is EXTREMELY unwise and dangerous.

Active Directory is a MULTIPLE MASTER system and whichever DC answers first is the DC that the service requesting DC services uses.  You can set the GC that Exchange uses - see http://www.windowsitpro.com/article/tips/q-how-can-i-specify-the-global-catalog-gc-that-i-want-my-microsoft-exchange-server-system-to-use-
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CarlosDominguez
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Leew,

I inherited this infrastructure with lots of issues 3 months ago, I fixing it as I go. That being said, I will try Carlos opinion.

Keep in mind my goal here is to replace one of the Window server 2003 as the master operator, and use it as DRP DC off site.

Carlos,

Thanks for the info,  I will review the link.

http://technet.microsoft.com/en-us/library/upgrade-domain-controllers-to-windows-server-2008-r2(v=ws.10).aspx
I neglected to mention adprep but if you want good advice in general you need to understand the terminology and the technology.
Thank you Carlos.