Create nested tunnels through HTTP proxies
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Tool to ping hosts through firewalls blocking ICMP
Mobile device as wireless keyboard and mouse for PC
Highly configurable SNMPv1/v2c/v3 application-level proxy
A server and database monitoring platform.
something that writes code for you
A flexible, extendable content filter