We recently released Security Onion 2.4.30 and a hotfix:

https://blog.securityonion.net/2023/11/security-onion-2430-now-available.html

https://blog.securityonion.net/2023/11/security-onion-2430-hotfix-20231117-now.html

Today, we are releasing an additional hotfix which resolves an issue:

https://docs.securityonion.net/en/2.4/release-notes.html

Documentation

You can find our online documentation here:

https://docs.securityonion.net/en/2.4/

Documentation is always a work in progress. If you find documentation that needs to be updated, please let us know as described in the Feedback section below.

New Installations

If this is your first time installing Security Onion 2.4, then we highly recommend starting with an IMPORT installation as shown at:

https://docs.securityonion.net/en/2.4/first-time-users.html

Once you’re comfortable with your IMPORT installation, then you can move on to more advanced installations as shown at:

https://docs.securityonion.net/en/2.4/architecture.html

Existing 2.4 Installations

If you have an existing Security Onion 2.4 installation, you can update to the latest version using soup:

https://docs.securityonion.net/en/2.4/soup.html

Questions, Problems, and Feedback

If you have any questions or problems relating to Security Onion 2.4, please use the new 2.4 category at our Discussions site:

https://github.com/Security-Onion-Solutions/securityonion/discussions/categories/2-4

2.3 EOL

Security Onion 2.3 will reach End Of Life (EOL) on April 6, 2024:

https://blog.securityonion.net/2023/10/6-month-eol-notice-for-security-onion-23.html

Training

Need training? Start with our free Security Onion Essentials training and then take a look at some of our other official Security Onion training!

https://securityonion.net/training

Security Onion Solutions Hardware Appliances

We know Security Onion’s hardware needs, and our appliances are the perfect match for the platform. Leave the hardware research, testing, and support to us, so you can focus on what’s important for your organization. Not only will you have confidence that your Security Onion deployment is running on the best-suited hardware, you will also be supporting future development and maintenance of the Security Onion project!

https://securityonionsolutions.com/hardware