Ensure that SharePoint application servers are protected by a reverse proxy

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

Review the SharePoint architecture and network diagrams and verify all HTTPS requests from users reach the SharePoint servers only through a reverse proxy (no direct client access to the web front ends).

How it is fixed

Fix method: Guidance or infrastructure patch

Deploy a reverse proxy that terminates/inspects all HTTPS requests and routes them to the SharePoint servers; block direct client access to the servers.