<h2><a href="https://www.bro.org/">Bro Network Security Monitor</a></h2>

<p>Bro provides a comprehensive platform for network traffic analysis, with a

particular focus on semantic security monitoring at scale. While often

compared to classic intrusion detection/prevention systems, Bro takes a quite

different approach by providing users with a flexible framework that

facilitates customized, in-depth monitoring far beyond the capabilities of

traditional systems. With initial versions in operational deployment during

the mid '90s already, Bro finds itself grounded in more than 20 years of

research.</p>