A network security analysis and monitoring toolkit Linux distribution.
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Anti Spam SMTP Gateway
Command line tool for managing Amazon S3 and CloudFront services
Xplico is a Network Forensic Analysis Tool (NFAT)
Open Source SIEM
Two-factor authentication system
Collects data about network useage using libpcap.
Hierarchical Cluster Engine project
Batch system monitoring and archiving
Monitoring your infrastructure for free.
WatchTower is a cloud server monitoring and management tool