ModSecurity 2.5 [pdf]
With more than 67 of web servers running Apache and web based attacks becoming more and more prevalent, web security has become a critical area for web site managers.
Most existing tools work on the TCP/IP level, failing to use the specifics of the HTTP protocol in their operation. Mod_security is a module running on Apache, which will help you overcome the security threats prevalent in the online world.
A complete guide to using ModSecurity, this book will show you how to secure your web application and server, and does so by using real world examples of attacks currently in use. It will help you learn about SQL injection, cross site scripting attacks, cross site request forgeries, null byte attacks, and many more so that you know how attackers operate.
Using clear, step by step instructions this book starts by teaching you how to install and set up ModSecurity, before diving into the rule language with examples. It assumes no prior knowledge of ModSecurity, so as long as you are familiar with basic Linux administration, you can start to learn right away.