Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Create nested tunnels through HTTP proxies
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