Apache HTTP Status Codes
http://www.juicystudio.com/article/apache-http-status.php

Lemon, Gez
Juicy Studio
2005

Abstract:

Those familiar with Apache will be used to the luxury of being able to specify redirects on the fly, without having to write programs to catch errors, and ensure they return the correct HTTP status codes. Being new to Apache, I was amazed at just how easy it is. The following provides an overview of the Apache Redirect directive.