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Welcome to the Security Onion Installation Guide!
To install Security Onion, you're going to either install our Security Onion ISO image or install a standard Ubuntu 14.04 ISO image and then add our Security Onion PPA and packages. Please keep in mind that our PPA and packages are only compatible with Ubuntu 14.04.
ALWAYS verify the checksum of ANY downloaded ISO image
Regardless of whether you're downloading our Security Onion ISO image or whether you're starting with an Ubuntu 14.04 ISO image, you should ALWAYS verify the downloaded ISO image.
- If downloading our Security Onion 14.04 ISO image, please verify using these instructions:
- If downloading an Ubuntu 14.04 ISO image, please verify using these instructions:
If you haven't already, please review the Hardware page.
If you have a new machine with UEFI, please see:
Choose your Installation Guide
We have different Installation Guides to cover various use cases. Please choose the appropriate Installation Guide for your use case.
Quickly Evaluating Security Onion
If you just want to quickly evaluate Security Onion, choose one of the following. If you're a first time user, please choose the first option.
If you're deploying Security Onion in production, please see: