Create nested tunnels through HTTP proxies
Encrypted UDP based FTP with multicast
Highly configurable SNMPv1/v2c/v3 application-level proxy
Various TCP/IP servers, clients and network management tools
Proxies the Nagios command fifo.
Multithreaded Proxy Enumeration Utility
Firewall/Proxy FreeBSD
Passive Proxy Daemon sniffs packets and creates squid proxy logs