OpenSnitch is a GNU/Linux port of the Little Snitch firewall
A network security analysis and monitoring toolkit Linux distribution.
Anti Spam SMTP Gateway
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Optical-packet node transceiver frequency allocation
Mobile device as wireless keyboard and mouse for PC
The box to keep the Internet under your control
Scalable, distributed monitoring system for high-performance computing
WatchTower is a cloud server monitoring and management tool
something that writes code for you
A flexible, extendable content filter