Chapter 1: Introduction to Network Security
Chapter 3: Fundamentals of Firewalls
Chapter 4: Firewall Practical Applications
Chapter 5: Intrusion Detection Systems
Chapter 6: Encryption Fundamentals
Chapter 7: Virtual Private Networks
Chapter 8: Operating System Hardening
Chapter 9: Defending Against Virus Attacks
Chapter 10: Defending against Trojan Horses, Spyware, and Adware
Chapter 12: Assessing System Security
Chapter 13: Security Standards
Chapter 14: Physical Security and Disaster Recovery
Chapter 15: Techniques Used by Attackers