Squid Proxy Server 3.1 Beginner's Guide

A special URL redirector – deny_info

The deny_info option is a directive in the Squid configuration file, which can be used to:

• Present clients with a custom access denied page.
• Redirect (HTTP 302) the clients to a different URL, displaying more information about why access was denied or containing help messages.
• Reset the TCP connection.

Let's have a look at the three syntaxes of the deny_info directive:

deny_info CUSTOM_ERROR_PAGE ACL_NAME
deny_info ALTERNATE_URL ACL_NAME
deny_info TCP_RESET ACL_NAME

The syntaxes shown previously correspond to the uses we have just discussed. In the first syntax, the parameter CUSTOM_ERROR_PAGE specifies a custom error page written in HTML or plain text, which will be displayed instead of Squid's default access denied ...