1. Intrusion Detection Primer.
IDSs Come in Different Flavors. Methods of Detecting Intrusions. Origin of Attacks. Orchestrating an Attack. The IDS Reality. Summary.
2. Network Intrusion Detection with Snort.
Snort's Specifications. Detecting Suspicious Traffic via Signatures. Detecting Suspicious Traffic via Heuristics. Gathering Intrusion Data. Alerting via Output Plug-ins. Prioritizing Alerts. Distributed Snort Architecture. Securing Snort. Shortcomings. Summary.
3. Dissecting Snort.
Feeding Snort Packets with Libpcap. Preprocessors. The Detection Engine. Output Plugins. Summary.
4. Planning for the Snort Installation.
Defining an IDS Policy. Deciding What to Monitor. Designing Your Snort Architecture. Planning for Maintenance. Incident Response Plan. Responding to an Incident. Restoring to a Normal State. Summary.
5. The Foundation-Hardware and Operating Systems.
Hardware Performance Metrics. Picking a Platform. The Monitoring Segment. Distributing Traffic to Multiple Sensors. Summary.
6. Building the Server.
Installation Guide Notes. Red Hat Linux 7.3. Post-Installation Tasks. Installing the Snort Server Components. Summary.
7. Building the Sensor.
Installation Guide Notes. Installing the Snort Sensor Components. Installing Snort. Implementing Barnyard. Summary.
8. Building the Analyst's Console.
Windows. Linux. Testing the Console. Working with ACID. Summary.
9. Additional Installation Methods.
The Hybrid Server/Sensor. Snort on OpenBSD. Snort on Windows. Summary.
10. Tuning and Reducing False Positives.
Pre-Tuning Activities. Tuning the Network for Snort. Filtering Traffic with Snort. Tuning the Preprocessors. Refining the Ruleset. Organize Your Rules. Designing a Targeted Ruleset. Tuning MySQL. Tuning ACID. Summary.
11. Real-Time Alerting.
An Overview of Real-Time Alerting with Snort. Prioritization of Alerts. Alerting with the Hybrid. Alerting with Distributed Snort.
12. Basic Rule Writing.
Fundamental Rule Writing Concepts. Rule Syntax. Writing Rules. Summary.
13. Upgrading and Maintaining Snort.
Choosing a Snort Management Application. IDS Policy Manager. SnortCenter. Upgrading Snort. Summary.
14. Advanced Topics in Intrusion Prevention.
A Warning Concerning Intrusion Prevention. Planning an Intrusion Prevention Strategy. Snort Inline Patch. SnortSam. Summary.
Appendix A. Troubleshooting.
Snort Issues. ACID Issues. IDS Strategy.
Appendix B. Rule Documentation.