Part 1: The Background

Information security plays a crucial role in the successful operation of any organization. Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS) have a pivotal role in a defense-in-depth information security strategy. One of the leading open source IDS/IPS systems of our time is Snort.

The first part of the book covers the necessary background information about network security and intrusion detection, the role of information security, and the role of an IDS/IPS system within a defense-in-depth strategy. A brief history of the evolution of Snort to its current state is also provided. With this background, we will start discussing Snort 3 in the second part of the book.

This part has the following chapters:

• Chapter 1, Introduction to Intrusion Detection and Prevention
• Chapter 2, The History and Evolution of Snort