Recently, we announced that Security Onion 2.4 has reached General Availability (GA) by releasing Security Onion 2.4.10:
https://blog.securityonion.net/2023/08/security-onion-24-has-reached-general.html
Today, we are excited to announce that Security Onion 2.4.20 is now available! It includes some new features and lots of bug fixes!
https://docs.securityonion.net/en/2.4/release-notes.html#changes
About Security Onion
Security Onion is a free and open platform built by defenders for defenders. It includes network visibility, host visibility, intrusion detection honeypots, log management, and case management.
For network visibility, we offer signature based detection via Suricata, rich protocol metadata and file extraction using your choice of either Zeek or Suricata, full packet capture via Stenographer, and file analysis via Strelka. For host visibility, we offer the Elastic Agent which provides data collection, live queries via osquery, and centralized management using Elastic Fleet. Intrusion detection honeypots based on OpenCanary can be added to your deployment for even more enterprise visibility. All of these logs flow into Elasticsearch and we’ve built our own user interfaces for alerts, dashboards, threat hunting, case management, and grid management.
Security Onion has been downloaded over 2 million times and is being used by security teams around the world to monitor and defend their enterprises. Our easy-to-use Setup wizard allows you to build a distributed grid for your enterprise in minutes!
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
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
Thanks
Lots of love went into this release!
Special thanks to all our folks working so hard to make this release happen!
- Josh Brower
- Jason Ertel
- Wes Lambert
- Corey Ogburn
- Josh Patterson
- Mike Reeves
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
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
Cloud Installations
For new Security Onion 2 installations in the cloud, Security Onion 2.4 will soon be available on the AWS, Azure, and GCP marketplaces!
AWS Marketplace and Documentation:
https://securityonion.net/aws/?ref=_ptnr_soc_blog_231006
https://docs.securityonion.net/en/2.4/cloud-amazon.html
Azure Marketplace and documentation:
https://securityonion.net/azure
https://docs.securityonion.net/en/2.4/cloud-azure.html
GCP Marketplace and documentation:
https://securityonion.net/gcp
https://docs.securityonion.net/en/2.4/cloud-google.html
Screenshot Tour
If you want the quickest and easiest way to try out Security Onion 2.4, just follow the screenshots below to install an Import node. This can be done in a minimal VM with only 4GB RAM! For more information, please see:
https://docs.securityonion.net/en/2.4/first-time-users.html
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