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Windows NT Domain Controller

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by parth_d

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Hi,

Here is a Situaution,
I am using Nt4 Server as PDC... One day my users were unable to login.. I checked the Eventviewer of PDC machine... Its NetLogon Service was stopped and In Event Viewer...
The error was
"THERE IS ANOTHER DOMAIN CONTROLLER RUNNING IN THIS DOMAIN"

Can anybody put some light on it that how is it possible and what can be done to avoid this sort of things as this event gets everybody out of Domain

Immediate help is appriciated

Thanks

Parth

3 replies

by gbworld

The first thing I would check is to see if anyone could have built a PDC or promoted a BDC to a domain controller.

I would imagine, this could also be someone experimenting with Windows 2000 Server or Advanced Server running dcpromo.

You should be able to use server manager to find the errant server that is taking over your domain and shut it down. Your PDC should show up transparent while the errant PDC should be colored properly.

In a worst case, shut down the PDC that you know about and check if you can still logon. If so (which I suspect should be the case), you should be able to find the domain controller that is causing problems.

Gregory A. Beamer
MCP: +I, SE, SD, DBA

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