Request Header Literal

Purpose: Identifies requests that contain the specified header set to a specified value(s).

The Matches/Does Not Match option determines the conditions under which this match option will be satisfied.

• Matches: If this option has been selected, then the request must contain the specified header and its value must match the one defined in this match option.
• Does Not Match: If this option has been selected, this match option will be satisfied if either of the following conditions are true:
  • The request does not contain the specified header.
  • The request contains the specified header, but its value does not match the one defined in this match option.

Keep in mind that header name comparisons are case-insensitive, while the case-sensitivity of header value comparisons is determined by the Ignore Case option.

Tip: If you would like to match more than one request header value, then you should use the "Request Header Wildcard" option.

Sample Scenario

The following example demonstrates how this option works in a specific situation:

Header Name	Header Value	Description
Referer	http://www.domain.com/	This setup will match a request with the following request header: Referer: http://www.domain.com/ It will not match a request with the following request header: Referer: http://www.domain.com/page.php