Using the reverse proxy service
Note: To use the Reverse proxy service, you need a Unified Threat Management license.
The reverse proxy service controls requests from the Internet and forwards them to servers in an internal network. It routes multiple HTTP and HTTPS sites to each of their own internal servers and publishes Microsoft Exchange services such as Outlook Web Access (OWA) and Outlook Anywhere (previously RPC over HTTPS). It also monitors traffic, increases server efficiency by SSL off-loading and improves web server security using intrusion prevention system (IPS).