Squid Proxy Server 3.1 Beginner's Guide

Playing around with HTTP headers

As all the requests and responses pass through Squid, it can add, modify, or delete the HTTP headers accompanied with requests and responses. These actions are usually performed to achieve anonymity or to hide the client-specific information. Squid has three directives, namely, request_header_access, reply_header_access, and header_replace to modify the HTTP headers in requests and responses. Let's have a brief look at them.

Note

Please be warned that using any of these directives violates HTTP standards and may cause problems.

Controlling HTTP headers in requests

The directive request_header_access is used in combination with ACLs to determine whether a particular HTTP header will be retained in a request or if ...