What Is an RODC?

Updated: May 1, 2009

Applies To: Windows Server 2008

An RODC is an additional domain controller for a domain that hosts read-only partitions of the Active Directory database. An RODC is designed primarily to be deployed in a branch office environment. Branch offices typically have relatively few users, poor physical security, relatively poor network bandwidth to a hub site, and little local IT knowledge.

The following figure illustrates the RODC branch office environment.

Hub-and-spoke environment

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