Snort

Snort — дэфакто стандарт систем обнаружения вторжения (так утверджает snort.org)

Книги на тему:

Snort_Cookbook_(2006)
The_Three_Snort_Pigs
Syngress Snort 2.1 Intrusion Detection Second Edition May 2004
snort_base_suse92-ru
OReilly [2004] Managing Security with Snort and IDS Tools
Network Intrusion Detection 3rd Ed
MRTG + Snort
More Suitable_Faster_Better_Snort _MySQL
Intrusion Detection Systems with Snort — Advanced IDS Techniques Using Snort, Apache, MySQL, PHP, and ACID
Detection of the Telecommunication Attacks_Theory and Practice_Snort
The Tao Of Network Security Monitoring Beyond Intrusion Detection — 2004 — (By Laxxuss)
Snort_for_Dummies
Intrusion_Detection_Systems_with_Snort