In addition to the Edge Server roles that provide remote access, federation, web conferencing, and A/V conferencing, a reverse proxy is required to publish the web components services that don’t run through an Edge Server.
Oftentimes, the reverse proxy component is overlooked or considered unnecessary. However, it is a critical step in deploying external access for users.
The reverse proxy provides remote access to the web components running on Front End Servers or Edge Servers. This includes the following features:
• Distribution Group Expansion
• Device Updates
• Web Conferencing Content (Whiteboards and PowerPoint File Uploads)
There are many vendors and types of reverse proxies, and almost any of them work with Lync Server because the publishing needs are fairly basic.
→ Refer to Chapter 27 for more details about the reverse proxy requirements.