End-to-End Network Security: Defense-in-Depth

Chapter 1. Overview of Network Security Technologies

This chapter covers the following topics:

• Firewalls

• Virtual Private Networks (VPN)

• Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS)

• Anomaly Detection Systems

• Authentication, Authorization, and Accounting (AAA) and Identity Management

• Network Admission Control

• Routing Mechanisms as Security Tools

Technology can be considered your best friend. Nowadays, you can do almost everything over networked systems or the Internet—from simple tasks, such as booking a flight reservation, to a multibillion dollar wire transfer between two large financial organizations. You cannot take security for granted! An attacker can steal credit card information from your online ...