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NT 4.0 BDC in a 2000 Domain

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8 replies

by dflo

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My network is currently ran by an NT 4.0 PDC and all Win2K member servers. I purchased a new machine that will eventually take the place of the PDC. I want to bring the new machine up as a BDC, promote to PDC, then upgrade to Win2K. My only problem is the current NT PDC runs legacy software and needs to stay on the network for a few more months.

My question is can I upgrade a PDC to Win2K and still have an NT 4.0 BDC on the Network? If so will the BDC still think it is a Domain Controller and how will this work with Active Directory.

Thanks in advance,

-Danny

8 replies

by dc1

You can upgrade your PDC to Win2K and keep your NT4 BDC active. This is called Mixed mode. When you are ready to upgrade the last NT4 BDC to windows 2000 it is recommended that you switch Active Directory over to native mode.
The BDC will still act as a domain controller.

by faisalmasood

Yes you can upgrade your NT 4 PDc to W2k PDC.
By default W2k domain runs in Mixed mode means you can still have NT 4 Domain controllers beside W2k DCs. If you are not using NT4 DCs then you can switch to Native mode.

by eng.

Yes,You can upgrade your PDC to Win2K and keep your NT4 BDC active.
Follow this steps:

1. Install NT 4.0 in the new machine.
2. Make it BDC of your domain.
3. Promote it to PDC. ( In this moment your other domain controller will be BDC ).
4. Disconnect or shutdown your NT 4.0 BDC. ( if you have any problems when you upgrade to Win2k you still have BDC without any problems)
5. Upgrade your NT PDC to Win2k (Active Directory) ( new machine ).
6. Restart or connect your NT 4.0 BDC.

Now you are in Mixed mode. Your NT machine act as a domain controller too.
When you upgrade the NT machine to Win2k you can change to Native mode. ( recomended )

Good look !

Hector

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