Tip
Subject Content

183
Add a global catalog server for redundancy

A global catalog (GC) server essentially functions as a key database for Active Directory (AD) and

is the mechanism through which AD searches are accomplished. The GC contains a full writable

replica of all objects in the AD for its host domain and a partial read-only replica of the forest's

other domains.



By default, the first domain controller (DC) in a forest is the only one that functions as a GC.

Adding further GCs is particularly important to provide availability and redundancy for

authentication in the domain. For example, if you have divisions that share a domain structure but

are separated by network segments that are susceptible to disconnection, you should add a local GC

at every location to prevent logon problems.



Follow these steps to add a GC server to a domain:



If you don't have a DC installed at the remote location, install Windows 2000 Server and promote it

to a DC in the domain.

Open the Active Directory Sites And Services console, expand the site to locate the DC in the

Servers node, and expand the server's branch.

Right-click NTDS Settings and choose Properties.

Select Global Catalog and click OK.

Close the console and repeat the process to add GCs at the other locations.

Page 183 of 237
First Previous Next Last