Description: When the Apache developers first began talking about Apache 2.0, one of the major goals was for one module to be able to modify the output of another. This goal was realized earlier this year with the sixth alpha version. The mechanism used to make modifications are called filters. Originally it was difficult to write filters, but during the past few releases, the developers have improved the interface so that filters are much easier to create. This article will cover some of the basic concepts of Apache filters.
