Zeek
An Open Source Network Security Monitoring Tool.
Overview
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 measurement and troubleshooting.
✨ Key Features
- In-depth analysis of network traffic
- Generates high-fidelity transaction logs
- Extensible with Zeek scripting language
- File extraction and analysis
- Signature-based and behavioral analysis
- Support for a wide range of protocols
🎯 Key Differentiators
- Rich, detailed transaction logs
- Powerful and flexible scripting language
- Focus on providing deep visibility into network traffic
Unique Value: Provides deep, semantic understanding of network traffic through its powerful analysis engine and detailed transaction logs.
🎯 Use Cases (4)
✅ Best For
- Detecting and investigating security incidents
- Monitoring for policy violations
- Gaining deep visibility into network traffic
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Intrusion prevention (it is not an inline device)
- Users who prefer a simple, out-of-the-box solution (requires some configuration and scripting)
🏆 Alternatives
Unlike signature-based IDS like Snort, Zeek provides much richer data about network activity, which is invaluable for incident response and threat hunting.
💻 Platforms
✅ Offline Mode Available
🔌 Integrations
💰 Pricing
Free tier: Full functionality, no limits.
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