Security Onion
FREE
Open-source Linux distribution for intrusion detection and network security monitoring.
About
Security Onion is a Linux distribution that includes a collection of tools for intrusion detection, network security monitoring, and log management.
Pricing
Pricing Type
Free
Free tier available
Last checked: February 21, 2026
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Key Facts
Categories
Platforms
Linux
Company
Security Onion Solutions
Founded
Founded in 2009
Country
Global
Language
English