zeek
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Description:
Network security monitor
Type: Formula  |  Latest Version: 8.0.4@0  |  Tracked Since: Nov 5, 2025
Links: Homepage  |  @Zeek_Networks  |  formulae.brew.sh
Category: Security
Tags: network-security ids traffic-analysis monitoring forensics
Install: brew install zeek
About:
Zeek is a powerful network analysis framework that differs from typical IDSes by focusing on network state and protocol analysis rather than just signature matching. It passively monitors network traffic and produces structured, high-fidelity logs that detail network activity. This enables deep forensic analysis and proactive security monitoring.
Key Features:
  • Passive network traffic analysis
  • Protocol analysis and logging
  • Scripting language for custom analysis
  • Scalable for high-speed networks
  • Generates structured logs (conn, http, dns, etc.)
Use Cases:
  • Network security monitoring and intrusion detection
  • Incident response and digital forensics
  • Network troubleshooting and operational visibility
  • Traffic analysis and application monitoring
Alternatives:
  • Suricata – Suricata is a signature-based IDS/IPS with real-time blocking, while Zeek excels at protocol analysis and stateful logging for deep forensic capabilities.
  • Wireshark – Wireshark is a packet capture and analysis tool for interactive inspection, whereas Zeek is designed for continuous, automated monitoring and logging of network-wide activity.
Version History
Detected Version Rev Change Commit
Nov 5, 2025 10:54pm 0 VERSION_BUMP f127d3b4
Oct 17, 2025 5:40pm 0 VERSION_BUMP 5defcaea
Oct 15, 2025 8:48pm 0 VERSION_BUMP 574be5a1
Oct 13, 2025 5:45pm 0 VERSION_BUMP 7d29eec2
Sep 15, 2025 4:57pm 0 VERSION_BUMP ff215730
Sep 15, 2025 11:39am 0 VERSION_BUMP c13954f5
Jan 7, 2025 8:25pm 0 VERSION_BUMP 59579c92
Dec 16, 2024 9:08pm 0 VERSION_BUMP 51d79d7e
Nov 24, 2024 12:45pm 0 VERSION_BUMP 70ba4098
Nov 19, 2024 10:17pm 0 VERSION_BUMP 69c5239d
Oct 13, 2024 4:36pm 0 VERSION_BUMP aeb1e17f
Oct 5, 2024 1:09am 0 VERSION_BUMP f78a9546
Sep 12, 2024 7:43am 0 VERSION_BUMP 7e624e19