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With over 100,000 installations, the Snort open-source network instrusion detection system is combined with other free tools to deliver IDS defense to medium - to small-sized companies, changing the tradition of intrusion detection being affordable only for large companies with large budgets.
Until now, Snort users had to rely on the official guide available on snort.org. That guide is aimed at relatively experience snort administrators and covers thousands of rules and known exploits.
The lack of usable information made using Snort a frustrating experience. The average Snort user needs to learn how to actually get their systems up-and-running.
Snort Intrusion Detection provides readers with practical guidance on how to put Snort to work. Opening with a primer to intrusion detection and Snort, the book takes the reader through planning an installation to building the server and sensor, tuning the system, implementing the system and analyzing traffic, writing rules, upgrading the system, and extending Snort.
1. Intrusion Detection Primer.
IDSs Come in Different Flavors. Methods of Detecting Intrusions. Origin of Attacks. Orchestrating an Attack. The IDS Reality. Summary.
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.
Feeding Snort Packets with Libpcap. Preprocessors. The Detection Engine. Output Plugins. Summary.
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.
Hardware Performance Metrics. Picking a Platform. The Monitoring Segment. Distributing Traffic to Multiple Sensors. Summary.
Installation Guide Notes. Red Hat Linux 7.3. Post-Installation Tasks. Installing the Snort Server Components. Summary.
Installation Guide Notes. Installing the Snort Sensor Components. Installing Snort. Implementing Barnyard. Summary.
Windows. Linux. Testing the Console. Working with ACID. Summary.
The Hybrid Server/Sensor. Snort on OpenBSD. Snort on Windows. Summary.
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.
An Overview of Real-Time Alerting with Snort. Prioritization of Alerts. Alerting with the Hybrid. Alerting with Distributed Snort.
Fundamental Rule Writing Concepts. Rule Syntax. Writing Rules. Summary.
Choosing a Snort Management Application. IDS Policy Manager. SnortCenter. Upgrading Snort. Summary.
A Warning Concerning Intrusion Prevention. Planning an Intrusion Prevention Strategy. Snort Inline Patch. SnortSam. Summary.
Snort Issues. ACID Issues. IDS Strategy.