SOFTWARE LICENSE GUIDE
Zeek
Zeek is open-source network security monitoring software. It is released under the permissive BSD 3-Clause License, allowing free use for both non-commercial and commercial purposes.
What it does
Zeek functions as a network security monitor, providing deep inspection of network traffic. It can be used for security monitoring, intrusion detection, and traffic analysis.
Who it may suit
Security professionals, network administrators, and organizations requiring robust network traffic analysis and intrusion detection capabilities.
Free tier and license
Yes, it is entirely free and open-source.
Limitations to check
None inherent to the software itself due to its open-source nature.
Licensing notes
Zeek is open-source software released under the permissive BSD 3-Clause License. This license allows free use for both non-commercial and commercial purposes.
Verification details
Last licensing verification recorded: 2026-10-28.
Directory record last updated: 2026-09-01. These are separate dates: a record update does not necessarily mean the publisher's terms changed.
AI-assisted summaries may be incomplete or outdated. Confirm licensing, pricing, and commercial-use rights in the official sources before making a business decision.
Frequently asked questions
Is Zeek free to use?
Yes, Zeek is entirely free and open-source software, licensed under the permissive BSD 3-Clause License, which permits both non-commercial and commercial use.
What are the primary use cases for Zeek?
Zeek is primarily used for network security monitoring, deep packet inspection, intrusion detection, and comprehensive network traffic analysis by security professionals and network administrators.
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