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Adding a second domain controller (W2K3 Server)

Posted on 2007-07-24
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Last Modified: 2008-05-31
I have a Windows 2003 SP1 server acting as my single domain controller, dns server, and DHCP server.  A second Windows 2003 SP1 server is my file and print server.

I would like to make that second server also a domain controller and DNS server (for redundancy).  Is it as simple as running dcpromo to make it an AD controller, then add DNS (throguh Manage Server)?  Will this require a reboot or can it be done during the day?

The domain is Windows 2003 Server if that matters.  
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Question by:shanepresley
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Kevin Hays earned 300 total points
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by:Kevin Hays
ID: 19557821
You can click on "create an additional domain controller" for instructions also.  The 2nd link apparently didn't do right when copied.

Kevin
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by:Lee W, MVP
Lee W, MVP earned 200 total points
ID: 19558731
Feel free to read the articles posted, but yes, this is generally that simple.  Run DCPROMO.  Would be best if you had DNS AD integrated - then there's no need to muck around with the zones in DNS to get it replicated.

As for a reboot, yes, this will require a reboot - when you make a machine a DC, you essentially remove all local accounts and to accomplish the change, a reboot is required.
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by:shanepresley
ID: 19560396
kshays, thanks!  I read both articles, and ran through the checklists.

leew, yes, my DNS is AD Integrated.  Thanks!

Related question, both servers are both SP1.   I plan to upgrade to SP2 after this change is made (two domain controllers).  I assume that shouldn't pose any difficulties?  It seems only R2 adds some differences?

Thanks
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by:Lee W, MVP
Lee W, MVP earned 200 total points
ID: 19561319
R2 modifies the schema, SP2 does not.  SP2 seems to be ok - but during it's initial release there were some issues (presumably fixed now).  As always, make backups before you upgrade/patch and know how to recover if something goes amiss.  And if you don't have a TechNet Plus Direct subscription, GET ONE.  It's $350 initial year and provides two MS Support incidents as well as TONS of software for learning and testing (NOT production).  Considering that each support call typically costs $245, this is a great deal - it gives you two calls at a discount AND the software.  Sales pitch over and no, I don't actually work for MS.

The point being having these calls as an option is great.... if your system goes down, why would you want to wait for someone here to post when MS might be able to answer much quicker.  At least call while posting - you can always hangup - the idea is getting your system running ASAP in the event of an outage.
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by:Kevin Hays
ID: 19561894
You should be fine.

I only wish I could get a technet direct subscription at work, but they just don't seem to think it's that important though :(  Otherwise if you can swing it get one for sure.  Like Leew suggested, it's worth it's weight in gold!
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by:shanepresley
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Thanks guys.  And sounds like a good idea -- I'll looking into the TechNet Plus Direct subscription.  
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by:shanepresley
ID: 19573412
Completed this today, worked fine.

Only small confusion I had was when I added the DNS role, it ran the DNS configuration wizard, which started to ask me about creating zones.  Luckily I cancelled out of it, and noticed that it had already updated my domain's DNS (since it was AD integrated).  

Thanks!
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by:Kevin Hays
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Awesome to hear that.

Anytime, Cheers

Kevin
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