Snort
About Snort
Snort is an open-source, free and lightweight network intrusion detection system software for Linux and Windows to detect emerging threats. It provides real-time traffic analysis and packet logging capabilities, making it a powerful tool for network security monitoring and intrusion prevention. Snort offers both Community and Subscriber rulesets for comprehensive threat detection. Maintained by Cisco, Snort is the most widely deployed IDS/IPS technology worldwide.
Why Notable
Most widely deployed open-source IDS/IPS