Vidalia
Utilities
Tor is a toolset for a wide range of organizations and people who want to improve their safety and security on the Internet. Using Tor can help you anonymize web browsing and publishing, instant messaging, IRC, SSH, and more.
Utilities
Wireshark
Utilities
Wireshark is the world’s foremost network protocol analyzer, and is the de facto (and often de jure) standard across many industries and educational institutions.