Network Defense and Countermeasures - Principles and Practices, Second Edition is designed to be the ideal one-volume gateway into the field of network defense. It brings together thoroughly updated coverage of all basic concepts, terminology and issues, along with the practical skills essential to network defense. Drawing on his extensive experience as both an IT professional and instructor, Chuck Easttom thoroughly covers core topics such as practical applications of firewalls, intrusion detection systems, encryption fundamentals, operating system hardening, defending against virus attacks, Trojan horses and spyware, security policies and security standards. He also fully addresses more specialized issues, including cryptography, industrial espionage and encryption - including public / private key systems, digital signatures and certificates. Table of Contents* Chapter 1: Introduction to Network Security* Chapter 2: Types of Attacks* 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 11: Security Policies* Chapter 12: Assessing System Security* Chapter 13: Security Standards* Chapter 14: Physical Security and Disaster Recovery* Chapter 15: Techniques Used by Attackers* Chapter 16: Introduction to Forensics* Chapter 17: Cyber Terrorism * Appendix A: References