Intrusion Detection Systems - hardcover Barnard, Robert

Instant OSSEC Host-based Intrusion Detection System - Lhotsky, Brad

Virtual Honeypots: From Botnet Tracking to Intrusion Detection

Guide to Firewalls and Network Security : Intrusion Detection and

Snort 2.0 Intrusion Detection

Guide to Firewalls and Network Security: Intrusion Detection and VPNs

Implementing Intrusion Detection Systems: A Hands-On Guide for Securing the Net

Snort Intrusion Detection and Prevention Toolkit [With CDROM]