Does Downstream Replica WSUS server have to join the domain?

Grace Yin 111 Reputation points
2021-03-25T06:37:31.933+00:00

I want to set up a Downstream Replica WSUS on DMZ for external domain computers to get updates. Does Downstream Replica WSUS have to be a member server of the same domain with the upstream WSUS server? Can it be a standalone server? Thanks,

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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