Earlier in this chapter, the concept of centrally managed replica groups was discussed. We defined a replica group as a WSUS hierarchy of one administration server and one or more replica-mode servers. When centrally managing WSUS servers, computer group and approval information is shared between all servers in the replica group. Update files and metadata do not fall under this replication scheme.
To maintain consistency in the model used to manage WSUS, you can configure your administration server (which has direct access to the Internet) to serve as the primary source for updates for the replicas. Each replica server would then be configured as a downstream update server and obtain its update files and metadata from the upstream administration server using the Synchronization Options page.
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