Global Catalog on additional Domain Controller
Sometimes, we need to select additional Domain Controller as Global Catalog and we are wondering how to do that. This is always necessary to add this feature to Domain Controller running Windows Server 2003 after promotion it to DC. This feature is not automatically added.
When we use Windows Server 2008/2008R2 as Domain Controller then during promotion process we can make it as Global Catalog (if we do not turn off default options). However when we disable it during promotion process or you are promoting Windows Server 2003 then you need to enable that feature later.
This short article shows you how to do that.
Important! In single forest, multiple domain environment you need to ensure first, if all of your Domain Controllers are Global Catalogs. If not, you cannot place Global Catalog on a DC with Infrastructure Master Operation role!
To select additional Global Catalog in your domain, you need to use Active Directory Sites and Services console. This tool is located under “Administrative Tools” (even though, it is done on Windows Server 2003, all the same steps are valid for Windows Server 2008/2008R2)
Navigate to Site in which desired Domain Controller is located and expand “Servers” node. Select that server and in the right pane, click right mouse button on “NTDS Settings” and choose “Properties”
Under “NTDS Settings” in “General” tab check “Global Catalog” checkbox.
Confirm by clicking on “OK” button and that’s all!
Author: Krzysztof Pytko