Flexible-client SOCKS allows the Caching Proxy server to be placed behind a firewall or SOCKS server without sharing the same physical machine. With flexible-client SOCKS support, the Caching Proxy server does not need to forward all requests to the SOCKS server. Requests for Web content located in the intranet can be routed directly to the destination content server so that workload on the SOCKS server is reduced.
The SOCKS support provided by the Caching Proxy allows you to specify which IP addresses or domains are contacted directly by the proxy server and which ones are contacted through the SOCKS server.
Note that if your system does not already have a SOCKS configuration file, a default SOCKS configuration file is installed with the Caching Proxy.