As mentioned earlier, Squid can also be used as a reverse proxy server. In this situation, Squid is caching content for one or more web servers, reducing the load on the servers. You can configure the reverse proxy server by navigating to Services | Squid Reverse Proxy. There are several tabs, but the default tab is General.
The first setting is the Reverse Proxy Interfaces list box, which allows you to select one or more interfaces to which the reverse proxy will bind. Since the reverse proxy will be serving content to remote users, you probably want to bind it to WAN (or possibly to multiple WAN-type interfaces). In the User Defined Reverse Proxy IPs, you can specify user-defined IPs to which Squid will bind. ...
