A network security analysis and monitoring toolkit Linux distribution.
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Command line tool for managing Amazon S3 and CloudFront services
Open Source SIEM
Scalable, distributed monitoring system for high-performance computing
a secure, open source OS for use inside USEagency facilities
Hierarchical Cluster Engine project
Monitoring your infrastructure for free.
WatchTower is a cloud server monitoring and management tool