You should turn this option on, so that local accesses are not cached, and do not pass through the cache server. If you have more than one domain, you will have to specifically change options so that all your domains are ignored, using the Advanced button. The main advantage of using the Advanced menu is the ability to specify which domains are to be connected to directly, rather than through the proxy server. If all your local sites' hostnames begin with intranet , you can simply put that into the box titled Do not use proxy for addresses beginning with . You will probably wish to exclude all local sites too.
Many people access local sites by IP address, rather than by name.
In the Temporary Internet files section , click the Settings button. Move the slider all the way to the left. Unix clients Most Unix client programs use a single environment variable to decide how they are to access the Internet. Each protocol has a different environmental variable, so that you can configure your client to use a different proxy for each protocol.