Zeek is a passive, open-source network traffic analyzer. It is primarily a security monitor that inspects all traffic on a link in depth for signs of suspicious activity. More generally, however, Zeek supports a wide range of traffic analysis tasks even outside of the security domain, including performance measurements and helping with trouble-shooting.


Zeek is meant to be a companion to Suricata in DetectionLab. Suricata excels at signature based detections and PCAP analysis while Zeek is excellent for connection logging, protocol analysis, and other monitoring and analysis tasks.

Configuration Details

  • Zeek configuration is in /opt/zeek
  • Zeek monitors both eth0 and eth1 interfaces by default

Data Location


  • index=zeek