Josh Patterson 52fc0cb828 Expose Logstash log.level and log.format in SOC
The Logstash log level was hardcoded to info in log4j2.properties, and
logstash.yml carried no log.level key, so the only way to raise verbosity
for troubleshooting was to hand-edit a file that the next highstate
overwrites. Add log_x_level and log_x_format to logstash:config so both
render into logstash.yml, annotated as advanced per-node settings with
the value sets Logstash 9.3.7 accepts.

log4j2.properties gains jinja, so it moves to log4j2.properties.jinja and
is rendered by a discrete lslog4j2 state rather than the lsetcsync
recurse, which cannot rename. The recurse exclude_pat now matches both
names so it neither copies the template verbatim nor lets clean: True
delete the rendered file, matching how pipelines.yml is already handled.

The appender layout is selected at render time so log.format actually
changes the log output instead of being a dead setting, keeping the
existing file name so nothing downstream moves. rootLogger.level now
follows ls.log.level rather than claiming info regardless of the
configured level.
2026-08-21 09:47:09 -04:00
2023-12-19 18:58:17 +00:00
2024-04-11 15:32:00 -04:00
2026-07-29 13:48:13 -04:00
2025-06-27 11:00:35 -04:00
2026-04-01 10:47:59 -04:00
2026-07-29 13:48:13 -04:00
2026-05-28 10:24:47 -04:00
2020-11-17 09:00:02 -05:00
2025-02-20 11:07:50 -05:00
2026-03-04 15:48:16 -05:00
2026-03-05 11:05:19 -05:00
2023-06-26 16:01:58 -04:00
2022-09-07 09:06:25 -04:00
2026-07-29 14:21:50 -04:00

Security Onion Logo

Security Onion

Security Onion is a free and open Linux distribution for threat hunting, enterprise security monitoring, and log management. It includes a comprehensive suite of tools designed to work together to provide visibility into your network and host activity.

Features

Security Onion includes everything you need to monitor your network and host systems:

  • Security Onion Console (SOC): A unified web interface for analyzing security events and managing your grid.
  • Elastic Stack: Powerful search backed by Elasticsearch.
  • Intrusion Detection: Network-based IDS with Suricata and host-based monitoring with Elastic Fleet.
  • Network Metadata: Detailed network metadata generated by Zeek or Suricata.
  • Full Packet Capture: Retain and analyze raw network traffic with Suricata PCAP.

Security Onion Pro

For organizations and enterprises requiring advanced capabilities, Security Onion Pro offers additional features designed for scale and efficiency:

  • Onion AI: Leverage powerful AI-driven insights to accelerate your analysis and investigations.
  • Enterprise Features: Enhanced tools and integrations tailored for enterprise-grade security operations.

For more information, visit the Security Onion Pro page.

☁️ Cloud Deployment

Security Onion is available and ready to deploy in the AWS, Azure, and Google Cloud (GCP) marketplaces.

🚀 Getting Started

Goal Resource
Download Security Onion ISO
Requirements Hardware Guide
Install Installation Instructions
What's New Release Notes

📖 Documentation & Support

For more detailed information, please visit our Documentation.

🤝 Contributing

We welcome contributions! Please see our CONTRIBUTING.md for guidelines on how to get involved.

🛡️ License

Security Onion is licensed under the terms of the license found in the LICENSE file.


Built with 🧅 by Security Onion Solutions.

S
Description
Security Onion 2 - Linux distro for threat hunting, enterprise security monitoring, and log management
Readme
84 MiB
Languages
Shell 51%
Jinja 22.2%
SaltStack 12%
Python 8.7%
CSS 2%
Other 4%