Josh Patterson
7f3f99880f
"zeekctl cron" writes node statistics to /nsm/zeek/logs/stats. The CPU and memory half comes from a helper that shells out to top, which the Zeek container does not include. The helper's "command not found" output is then parsed as process data, so every cron run appended a line per node reading "bad output from top", which so-log-check reports. Nothing wrote that file before, since log_stats and update_http_stats only run from "zeekctl cron". Set StatsLogEnable to 0 so neither runs, and mark it read only since the CPU and memory statistics cannot work with this image. The interface counters it also collects are not used anywhere in Security Onion, which tracks Zeek packet loss separately through packetloss.log and Telegraf, so nothing is lost by turning this off. Note in StatsLogExpireInterval that it does nothing while the stats log is off.
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.
- FAQ: Frequently Asked Questions
- Community: Discussions & Support
- Training: Official Training
🤝 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.