Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are avalable for Linux, Windows, and Mac OS X. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), and a utility for comparing scan results (Ndiff).

Changelog:
o [NSE] Fixed a bug which caused some NSE scripts to fail, due to the absence of the NSE SCRIPT_NAME environment variable when the scripts are loaded. Michael Pattrick reported the problem. [Djalal]

o Fixed some inconsistencies in nmap-os-db reported by Xavier Sudre from netVigilance.

o [Zenmap] Worked around an error that caused the py2app bootstrap executable to be non-universal even when the rest of the application was universal. This prevented the binary .dmg from working on PowerPC. yxynaxen reported the problem. [David]

o [Ndiff] Fixed an output line that wasn't being redirected to a file when all other output was. [Daniel Miller]

o Updated IANA IP address space assignment list for random IP (-iR) generation. [Kris]

Program Information Category: Tools and Utilities Type: Free Version: 5.50 Size: 18.9MB Works on: Windows Product page: here