Bring old BDC online

nestey
nestey used Ask the Experts™
on
We have an OLD BDC that has been offline for quit some time. Do not remember why we took it off line but we did. We are now having a problem with our PDC it crashes after a couple of minutes. We tried to bring the Old BDC online but it is not recognized in the domain (because the PDC) is offline I guess. Is there any way to get the old BDC running till we correct the problem with the PDC?
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Commented:
Just to avoid misunderstandings: you are talking about an NT4 domain here, not an AD domain?

Author

Commented:
Yes

What we did was promote the BDC and take PDC offline. Now it seems as WINS is not working correctly. DHCP and WINS were already installed I activated DHCP and that seem to be working but I'm not sure yet if WINS working correctly. We are trying to replicate WINS between our remote site which is Win 2003 AD
Most Valuable Expert 2018
Distinguished Expert 2018

Commented:
If you managed to get the BDC back online while the PDC was still running, so that it could replicate the current state of the domain, you should be fine. Otherwise, if it's the state of some weeks ago, you might have to re-join some or all clients to the domain.
WINS replication shouldn't be an issue; just recreate the push/pull partnership. Note that you'll have to do that on the respective server, remote management of an NT4 WINS with the W2k3 WINS manager or vice versa is not possible.
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Author

Commented:
Localy things are seemed to be working but we have a trust relationship with the win 2003 AD domain which looks like can no longer be seen it worked from last night till about 3:00pm today now it seems we can not browse the win 2003 domain and if I try to share a folder or file giving the win 2003 domain access it say can not find a name or group in that domain. Could the Trust Relationship be broken?
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Commented:
It's more likely that the WINS resolution doesn't work properly anymore.
You can use nblookup.exe to check whether all WINS records resolve correctly:
NBLookup.exe command-line tool
http://support.microsoft.com/kb/830578
The bare minimum (on both sides of the trust) are, if I remember correctly, <DC>[20], <DC>[00], <DOMAIN>[1B]; <DOMAIN>[00] and <DOMAIN>[1C] should be resolvable, too.
NetBIOS Suffixes (16th Character of the NetBIOS Name)
http://support.microsoft.com/kb/163409
If you can resolve all necessary entries, but the trust still doesn't work, you might have to break and recreate it. Correct name resolution provided, this shouldn't be a problem.
Oh, and check the lmhosts on the DCs as well; could be that there are old entries there.
DNS is not involved here at all, plain NetBIOS.

Author

Commented:
Deleted WINS and broke the trust then recreated both.

Thanks

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