Wednesday, November 1, 2017

Elastic Stack Beta Release and Security Onion ISO Image!

UPDATED 2018/04/09! We've released a newer version!

We're excited to announce that our Elastic stack integration has now reached Beta Release!  This Beta release includes a new ISO image that contains these Beta components and all the latest Ubuntu and Security Onion updates as of October 31, 2017!

Previous Releases
To see our progress over the last few months, please see the previous announcements:

Highlights of this Beta Release
  • Upgraded from Elastic 5.5.2 to 5.6.3
  • Each Docker container now runs using its own unique UID
  • Overview dashboard now shows total number of connected sensors
  • New Help dashboard includes introductory information and link to our Wiki
  • Hyperlinked more fields in Kibana dashboards for more pivoting capability
  • Added ability to automate setup of Elastic stack via sosetup.conf
  • Setup now automatically disables DomainStats if it detects whois failure
  • Setup now enforces minimum hardware requirements of 2 CPU cores and 8GB RAM
  • Lots of cleanup and fixes

Overview Dashboard now shows total number of connected sensors

Issues Resolved
Issue 1130: Elastic Stack Beta Release

Issue 1094: ISO image

Known Issues
As seen in the screenshot above, metric visualizations have unnecessary scroll bars.  This is a known issue in Kibana 5.6.3:

For this and other known issues, please see our RC1 list:

This new ISO image has been tested by Wes Lambert and Phil Plantamura.  Thanks, guys!

New Installations
We've updated the Verify_ISO page for the new ISO image:

Please remember to verify the signature of the downloaded ISO image using the instructions on that page.

Please note! This ISO image includes the EXPERIMENTAL Elastic stack!

The Elastic components are included in the ISO image and Setup gives you an option of Stable Setup (ELSA) or Experimental Setup (Elastic). If you do not want to try the new Elastic stack, you can choose Stable Setup.  If you choose Experimental Setup, the usual disclaimers and warnings apply!
  • Experimental Setup is BLEEDING EDGE and TOTALLY UNSUPPORTED!
  • If this breaks your system, you get to keep both pieces!
  • This is a work in progress and is in constant flux.
  • This is intended to build a quick prototype proof of concept so you can see what our ultimate Elastic configuration might look like.  This configuration will change drastically over time leading up to the final release.
  • Do NOT run this on a system that you care about!
  • Do NOT run this on a system that has data that you care about!
  • This should only be run on a TEST box with TEST data!
  • Experimental Setup may result in nausea, vomiting, or a burning sensation.

For more about this Elastic Beta release, please see and the Screenshot tour at the bottom of this blog post.

Please note the following minimum hardware requirements for the Elastic stack:
  • 2 CPU cores
  • 8GB RAM

If you would prefer an ISO image with no Elastic components at all, you have a few options:

Existing Deployments
If you have existing ELSA installations based on a previous 14.04 ISO image, there is no need to download this new ISO image.  You can simply continue using our standard update process to install updated packages as they are made available:

If you have existing Elastic installations (Technology Previews or Alpha), we don't officially support upgrading to newer releases.  However, if you're running Alpha, you can try the steps listed here:
If all else fails, you can perform a fresh installation using this Beta ISO image.

Release Notes
For more information about this release, please see:

Want to show your support for Security Onion?
Security Onion t-shirts are available in our CafePress store!

We have a 4-day Security Onion training class coming up in San Antonio, Texas!  For this and other training options, please see:

Need support?  Please see:

Screenshot Tour
Security Onion 20171031 

Network Configuration

Stable Setup vs Experimental Setup

Experimental Setup - Warnings and Disclaimers

Evaluation Mode vs Production Mode

Monitor (Sniffing) Interface

Creating Username

Setting Password

Confirming Password
Confirming Options

Setup Complete
Single Sign On (SSO) for Squert, CapMe, and Kibana





Bro - Notices


OSSEC Alerts

NIDS Alerts

Bro - Connections


Bro - DHCP

Bro - DNP3

Bro - DNS

Bro - Files

Bro - FTP

Bro - HTTP

Bro - Intel

Bro -IRC

Bro - Kerberos

Bro - Modbus

Bro - MySQL

Bro - NTLM

Bro - PE


Bro - RDP

Bro - RFB

Bro - SIP

Bro - SMB

Bro - SMTP

Bro - SNMP

Bro - Software

Bro - SSH

Bro - SSL

Bro - Syslog

Bro - Tunnels

Bro - Weird

Bro - X.509






UPDATED 2017/11/18 - Updated Existing Deployments section to include link to Wiki article on upgrading from Alpha to Beta.

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