Josh Patterson 5c3a69d742 Warn about two pipeline_settings combinations that stop a pipeline
Grid testing every permitted value on the manager pipeline surfaced two
combinations the UI allows that take the pipeline down, neither of which
the descriptions mentioned.

pipeline.ordered: true requires pipeline.workers: 1; with more workers the
pipeline fails to start with "enabling the 'pipeline.ordered' setting
requires the use of a single pipeline worker". Also correct the auto
wording: it only engages when workers is explicitly set to 1.

queue.max_bytes larger than the free space on /nsm/logstash fails queue
creation with "Unable to allocate N more bytes", rather than merely being
inadvisable.
2026-08-20 17:33:34 -04:00
2023-12-19 18:58:17 +00:00
2024-04-11 15:32:00 -04:00
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2020-11-17 09:00:02 -05:00
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2023-06-26 16:01:58 -04:00
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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.

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Security Onion 2 - Linux distro for threat hunting, enterprise security monitoring, and log management
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