Re: DNS questions during Windows 2003 upgrade?
- From: "Ace Fekay [MVP]" <PleaseSubstituteMyActualFirstName&LastNameHere@xxxxxxxxxxx>
- Date: Wed, 6 Jul 2005 18:12:53 -0400
In news:AA315509-DC5C-4B38-9B15-2C65C253209F@xxxxxxxxxxxxx,
km <km@xxxxxxxxxxxxxxxxxxxxxxxxx> stated, which I then commented below:
> Am running a Windows 2000 AD (SP4) with 4 DCs in the root domain.
> Two of the DCs are DNS servers. I would like to upgrade this domain
> to Windows 2003.
>
> I have replacement hardware for the upgrade. I can build new Windows
> 2003 DCs in the root domain but am curious about how I should proceed
> with DNS? Do I need to DCPROMO with DNS installed on the Windows 2003
> DCs? Can they exist simultaneously? And what about transitioning
> from one box to the other? I don't want to point the clients to a
> new IP address...so a new DC will have to take the IP of the old
> server. Any good documents on how to proceed with this?
There are a couple of ways to do this.
One way, you could first move all your infrastructure services to the new
Windows 2003 servers. This include DNS, WINS and DHCP. Make sure DHCP Scope
or Server Option 006 is pointing to the new DNS servers.
Then you can follow this article:
325379 - How to Upgrade Windows 2000 Domain Controllers to Windows Server
2003:
http://support.microsoft.com/?id=325379
More info:
Windows Server 2003 Upgrade Assistance Center:
http://www.microsoft.com/windowsserver2003/upgrading/nt4/upgradeassistance/default.mspx
This means during the transition prior to promoting the machines, you will
need to choose one of the new DNS servers to make your zone a Primary zone,
then make the other new servers host secondary zones. This will prevent
conflict errors with AD Integrated zone scope replication in DNS.
Another method you can choose is to just keep the existing services on your
current machines, run with the upgrade, and move them afterwards. Once
you've demoted ALL your Win2000 DCs, I would then change your AD Integrated
replication scopes to the app partition in Win2003 AD.
--
Regards,
Ace
Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.
This posting is provided "AS-IS" with no warranties or guarantees
and confers no rights.
Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services
Infinite Diversities in Infinite Combinations.
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