** As of Snort 2.9.7.6, we are longer releasing Snort on SourceForge. Please head to http://www.snort.org from now on!**
**As of June 2017, the mailing lists are no longer on SourceForge, and have moved to https://lists.snort.org**
Snort is a libpcap-based sniffer/logger which can be used as a network intrusion detection and prevention system. It uses a rule-based detection language as well as various other detection mechanisms and is highly extensible.