Security Strategies in Linux Platforms and Applications, 3rd Edition

Working with Squid

Proxy servers are used to sit in between two endpoints. This may be used to protect servers as in the case of a reverse proxy or it may be used to protect clients, as in the case of a web proxy. You can also get performance enhancements using a proxy server since the content can be cached locally. This only works with static content. Any programmatic content can’t be cached since it should be changing regularly.

As for caching, the proxy server for an enterprise where hundreds of users access the same online dictionary website can store that information locally. The definitions on that dictionary would be accessed from the Internet only once. Further requests for the same definitions would be returned in this case from the ...