Security Onion

Introduction Recent events have forced us to change course on the base operating system (OS) for Security Onion 2.4.  On 6/21/2023, Red Hat ...

We recently posted about Ubuntu 18.04 support: https://blog.securityonion.net/2023/02/ubuntu-1804-reaches-end-of-ubuntu.html This is one fin...

If you are running Security Onion 2.3 on Ubuntu 18.04, then you should be aware that Ubuntu 18.04 reaches the end of Ubuntu standard support...

Here's a quick review of some of the major improvements we made to Security Onion 2.3 in the past year! Security Onion 2.3.100 added SOC...

SaltStack has released version 3004.1: https://docs.saltproject.io/en/latest/topics/releases/3004.1.html SaltStack also removed version 3004...

In 2018, we started working on the next major version of Security Onion, code-named Hybrid Hunter: https://blog.securityonion.net/2018/11/s...

UPDATE 2019/12/16 - Security Onion Hybrid Hunter 1.1.3 Alpha 3 is now available for testing! https://blog.securityonion.net/2019/12/securi...

We recently announced Security Onion Hybrid Hunter: https://blog.securityonion.net/2018/11/security-onion-hybrid-hunter-101-tech.html H...

From Doug Burks: When Mike Reeves joined Security Onion Solutions in January 2018 , one of the first things we discussed was building a...

securityonion-pfring-module - 20121107-0ubuntu0securityonion31 is now available for Security Onion 16.04 and should resolve the following is...

Introduction This blog post only applies to you if you installed our Security Onion 16.04 ISO images OR if you installed Ubuntu 16.04 with ...

We're pleased to announce that Security Onion 16.04.4.1 RC2 has been promoted to RELEASE status! This release resolves the followin...

Ubuntu has released fixes for the CVE-2015-7547 glibc security issue: http://www.ubuntu.com/usn/usn-2900-1/ You should install these fixe...

If you've been in the Security Onion community for a few years, you may remember that back in 2012 we embarked on a project called BDR (...

This is a continuation of the ShellShock posts from the last few days: http://blog.securityonion.net/2014/09/bash-vulnerability.html http:...

Summary If you installed Security Onion using our ISO image, then you should be running the original 3.2 kernel which should be fully supp...

Over the past few weeks, you may have seen some Ubuntu prompts to upgrade to the new Ubuntu release (Ubuntu 14.04).  For example: We...

Ubuntu recently released updated MySQL packages.  As a reminder, please follow the instructions at the following link to avoid any issues wi...

The current version of Security Onion is based on Ubuntu 10.04.   Ubuntu 12.04.1 was just released yesterday and is being offered to users ...

I'm currently working on the next version of the Security Onion LiveCD. What specific packages/features would you like to see added to ...