Finding global catalog servers

by Mitch Tulloch [Published on 18 Dec. 2007 / Last Updated on 18 Dec. 2007]

How to find all GCs in a domain

How can you quickly find the global catalog servers in your domain? Two command-line tools can be helpful here:

1. First, you can type repadmin.exe /options * and use IS_GC for current domain options.

2. And second, you can type nltest /dsgetdc:corp /GC


Mitch Tulloch is lead author for the Windows Vista Resource Kit from Microsoft Press, which is THE book for IT pros who want to deploy, maintain and support Windows Vista in mid- and large-sized network environments. Mitch is also the author of Introducing Windows Server 2008, the first book from Microsoft Press about the exciting new server platform. For more information on these and other books written by Mitch, see

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