Preface to the Free Edition

Welcome to ModSecurity Handbook: Getting Started. This is a special free version that consists of the first four chapters of the full book. Since ModSecurity Handbook went into print, we realized that there were many new users of ModSecurity who were not yet interested in mastering this tool (and wouldn’t consider buying a book) but who could benefit from having access to better documentation. This version offers exactly that, with an introduction to ModSecurity in Chapter 1, and coverage of installation and configuration in Chapters 2, 3, and 4. Enjoy!