Josh Patterson
2663ca87a2
MailTo, MailConnectionSummary and MailHostUpDown do nothing but send mail, and the Zeek container has no mail program, so nothing they control can happen. Mark them read only rather than offering knobs in SOC that cannot take effect. MailConnectionSummary only gates the emailed copy; the connection summary is generated and archived either way. MailTo also feeds Notice::mail_dest, but Security Onion never enables the notice email action, so that half is inert too. MailHostUpDown gates only the notification text - host status detection, the plugin hook and the stored state all run regardless. MinDiskSpace stays editable. It is not mail only: setting it to 0 skips the disk space check entirely, and the warning it produces is not emailed but does appear in the output of "zeekctl cron". Correct its description, and MailHostUpDown's, which both claimed these settings have no visible effect.
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.