Tuesday, January 17, 2023

Security Onion Documentation printed book now updated for Security Onion 2.3.200!

Many folks have asked for a printed version of our official online documentation and we're excited to provide that!  Whether you work on airgap networks or simply want a portable reference that doesn't require an Internet connection or batteries, this is what you've been asking for.

Thanks to Richard Bejtlich for writing the inspiring foreword!

Proceeds go to the Rural Technology Fund!

This 20230112 edition has been updated for Security Onion 2.3.200 and includes a 20% discount code for our on-demand training and certification!

This book covers the following Security Onion topics:

  • First Time Users
  • Getting Started
  • Security Onion Console (SOC)
  • Analyst VM
  • Network Visibility
  • Host Visibility
  • Logs
  • Updating
  • Accounts
  • Services
  • Customizing for Your Environment
  • Tuning
  • Tricks and Tips
  • Utilities


What is the difference between this book and the online documentation?

This book is the online documentation formatted specifically for print.  It also includes an inspiring foreword by Richard Bejtlich that is not available anywhere else!  Proceeds go to the Rural Technology Fund!  Finally, the printed book includes a 20% discount code for our on-demand training and certification.

Who should get this book?

You should get this book if you work on airgap networks or simply want a portable reference that doesn't require an Internet connection or batteries! Also anyone who wants to donate to a worthy cause like Rural Technology Fund!

What is the difference between this edition and the previous edition?

This edition has been updated for Security Onion 2.3.200!

Where do we get it?

Security Onion 2.3.200 now available including Sysmon Improvements, Dashboard Updates, and Elastic 8.5.3!

Security Onion 2.3.200 is now available! It includes improved Sysmon parsing, dashboard updates, Elastic 8.5.3, and more:


Thanks to Mark Russinovich and team for Sysmon! We've updated our Sysmon support:

We've also updated our Sysmon documentation:

Check out our Sysmon video:

If you need a Sysmon config, check out the following options:


You can find our documentation here:

Documentation is always a work in progress and some documentation may be missing or incorrect. Please let us know if you notice any issues.

New Installations

If you want to perform a new installation, please review the documentation and then you can find instructions here:

Existing 2.3 Installations

WARNING! If you have an existing Security Onion 2.3 installation that hasn't yet been updated to version 2.3.140 or higher, then you should be aware that the Elastic components will undergo a major version upgrade to version 8. Please review and follow the steps at the link below. Failure to do so could result in loss of access to all data stored inside of Elastic and a non-functioning Security Onion installation.


Please be aware that custom settings in Kibana may be overwritten during upgrade. We recommend that you test the upgrade process on a test deployment before deploying to production. If you have a distributed deployment, then we recommend monitoring SOC Grid while your update is running to verify that all nodes update properly. If there are issues, you can review logs, services, and containers for any additional clues. If you need help, please see our support information below.

If you have custom Elasticsearch templates, please see:

For more information about the update process, please see:

AWS Marketplace

For new Security Onion 2 installations on AWS, Security Onion 2.3.200 will soon be available on AWS Marketplace via the official Security Onion 2 AMI:

AMI Documentation:

Existing Security Onion 2 AMI users should use the "soup" command to upgrade:

Azure Marketplace

For new Security Onion 2 installations on Azure, Security Onion 2.3.200 will soon be available on the Azure Marketplace!

Azure Documentation:

Existing Security Onion 2 users on Azure should use the "soup" command to upgrade:

Security Onion 16.04 EOL

As a reminder, Security Onion 16.04 has reached End Of Life (EOL):

If you're still running Security Onion 16.04, please see the following for upgrade options:

Questions or Problems

If you have questions or problems, please see our community support forum guidelines:

You can then find the community support forum at:


Lots of love went into this release!

Special thanks to all our folks working so hard to make this release happen!

  • Josh Brower
  • Pete Di Giorgio
  • Jason Ertel
  • Wes Lambert
  • Josh Patterson
  • Mike Reeves


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


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!


Screenshot Tour

If you want the quickest and easiest way to try out Security Onion 2, just follow the screenshots below to install an Import node and then optionally enable the Analyst Workstation. This can be done in a minimal VM with only 4GB RAM! For more information, please see:


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