Our printed documentation book has been updated for Security Onion 3.1 and is available from Amazon now!

For those who don't know, we offer a softcover copy of our documentation for the current version of Security Onion via Amazon. All proceeds go to the Rural Technology Fund, and the book comes with a 20% off discount code for our on-demand training and the Security Onion Certified Professsional (SOCP) certification exam.

https://blog.securityonion.net/2026/05/security-onion-documentation-printed.html