graphical os fingerprinting

P0f v2 is a versatile passive OS fingerprinting tool.

Quality network tools, DNS-dig, whois, OS fingerprinting, and more...

GSview is a graphical interface for Ghostscript under MS-Windows or OS/2.

Gpg Tools is a Mac OS X graphical interface to the GNU Privacy Guard.

OneButton FTP is a graphical FTP client for Mac OS X with a strong emphasis