"Writing Apache Modules with Perl and C teaches you how to extend the capabilities of your web server. The book explains the design of Apache, modp̲erl, and the Apache API. It then demonstrates how to use them to perform tasks such as: using modp̲erl to vastly improve the performance of Perl-based CGI scripts, rewriting CGI scripts as Apache modules to give them full access to the Apache API, server-side filtering of HTML documents to embed special markup or code (much like SSI), enhancing server log functionality, converting file formats on the fly, implementing dynamic navigation bars, incorporating database access into CGI scripts, and customizing access control and authorization to block robots or to use an external database for passwords." "Included with the book is a detachable modp̲erl quick reference card for easy lookup of modp̲erl syntax and functionality."--Jacket.