Snort
License / Price: Shareware
Version: 2.9.8.3
Language: English
File size: 3.03 MB
Developer: CISCO Systems
OS: Windows/Unix/Mac
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Snort
This network intrusion detection and prevention system excels at traffic analysis and packet logging on IP networks.
Through protocol analysis, content searching, and various pre-processors, Snort detects thousands of worms, vulnerability exploit attempts, port scans, and other suspicious behavior.
Snort uses a flexible rule-based language to describe traffic that it should collect or pass, and a modular detection engine.
Also check out the free Basic Analysis and Security Engine (BASE), a web interface for analyzing Snort alerts.