Part I. Network Security

This part of the book explores the problem of Internet security and focuses on firewalls as part of an effective strategy to solve that problem. It introduces firewalls, introduces the major services Internet users need, and summarizes the security problems posed by those services. It also outlines the major security principles you need to understand before beginning to build firewalls.


0.9. Acknowledgments for the First Edition		1. Why Internet Firewalls?