Preface; Audience; Assumptions This Book Makes; Contents of This Book; Conventions Used in This Book; Using Code Examples; Comments and Questions; Safari Enabled; Acknowledgments;Security Foundation; Chapter 1: The Big Picture; 1.1 What Is System Security?; 1.2 Identifying Risks; 1.3 Responding to Risk; 1.4 Security Process and Principles; 1.5 System Security Principles; 1.6 Wrapping Up; 1.7 Resources; Chapter 2: BSD Security Building Blocks; 2.

1 Filesystem Protections; 2.2 Tweaking a Running Kernel: sysctl; 2.3 The Basic Sandbox: chroot; 2.4 Jail: Beyond chroot; 2.5 Inherent Protections; 2.6 OS Tuning; 2.7 Wrapping Up; 2.8 Resources; Chapter 3: Secure Installation and Hardening; 3.

1 General Concerns; 3.2 Installing FreeBSD; 3.3 FreeBSD Hardening: Your First Steps; 3.4 Installing OpenBSD; 3.5 OpenBSD Hardening: Your First Steps; 3.6 Post-Upgrade Hardening; 3.7 Wrapping Up; 3.8 Resources; Chapter 4: Secure Administration Techniques; 4.

1 Access Control; 4.2 Security in Everyday Tasks; 4.3 Upgrading; 4.4 Security Vulnerability Response; 4.5 Network Service Security; 4.6 Monitoring System Health; 4.7 Wrapping Up; 4.8 Resources;Deployment Situations; Chapter 5: Creating a Secure DNS Server; 5.

1 The Criticality of DNS; 5.2 DNS Software; 5.3 Installing BIND; 5.4 Installing djbdns; 5.5 Operating BIND; 5.6 Operating djbdns; 5.7 Wrapping Up; 5.8 Resources; Chapter 6: Building Secure Mail Servers; 6.

1 Mail Server Attacks; 6.2 Mail Architecture; 6.3 Mail and DNS; 6.4 SMTP; 6.5 Mail Server Configurations; 6.6 Sendmail; 6.7 Postfix; 6.8 qmail; 6.

9 Mail Access; 6.10 Wrapping Up; 6.11 Resources; Chapter 7: Building a Secure Web Server; 7.1 Web Server Attacks; 7.2 Web Architecture; 7.3 Apache; 7.4 thttpd; 7.5 Advanced Web Servers with Jails; 7.

6 Wrapping Up; 7.7 Resources; Chapter 8: Firewalls; 8.1 Firewall Architectures; 8.2 Host Lockdown; 8.3 The Options: IPFW Versus PF; 8.4 Basic IPFW Configuration; 8.5 Basic PF Configuration; 8.6 Handling Failure; 8.

7 Wrapping Up; 8.8 Resources; Chapter 9: Intrusion Detection; 9.1 No Magic Bullets; 9.2 IDS Architectures; 9.3 NIDS on BSD; 9.4 Snort; 9.5 ACID; 9.6 HIDS on BSD; 9.

7 Wrapping Up; 9.8 Resources;Auditing and Incident Response; Chapter 10: Managing the Audit Trails; 10.1 System Logging; 10.2 Logging via syslogd; 10.3 Securing a Loghost; 10.4 logfile Management; 10.5 Automated Log Monitoring; 10.6 Automated Auditing Scripts; 10.

7 Wrapping Up; 10.8 Resources; Chapter 11: Incident Response and Forensics; 11.1 Incident Response; 11.2 Forensics on BSD; 11.3 Digging Deeper with the Sleuth Kit; 11.4 Wrapping Up; 11.5 Resources;Colophon;.