Table of Contents

• Part I: Packet Filtering and Basic Security Measures
• Chapter 1: Preliminary Concepts Underlying Packet-Filtering Firewalls        
• Chapter 2: Packet-Filtering Concepts         
• Chapter 3: iptables : The Legacy Linux Firewall Administration Program        
• Chapter 4: nftables : The Linux Firewall Administration Program        
• Chapter 5: Building and Installing a Standalone Firewall        
• Part II: Advanced Issues, Multiple Firewalls, and Perimeter Networks       
• Chapter 6:  Firewall Optimization         
• Chapter 7:  Packet Forwarding         
• Chapter 8:  NAT–Network Address Translation         
• Chapter 9: Debugging the Firewall Rules          
• Chapter 10: Virtual Private Networks         
• Part III: Beyond iptables  and nftables         
• Chapter 11: Intrusion Detection and Response         
• Chapter 12:  Intrusion Detection Tools         
• Chapter 13:  Network Monitoring and Attack Detection         
• Chapter 14:  Filesystem Integrity         
• Part IV: Appendices         
• Appendix A:  Security Resources         
• Appendix B:  Firewall Examples and Support Scripts         
• Appendix C: Glossary         
• Appendix D: GNU Free Documentation License         
• Index       

About the Author

Steve Suehring is a technology architect who consults and speaks on a wide variety of technology-related subjects. He has worked in Linux administration and security since 1995, and served as Linux Security editor for LinuxWorld magazine. His previous books include JavaScript Step by Step, Third Edition (Microsoft Press, 2013), and MySQL Bible (Wiley, 2002).