Nmap – Nmap Security Scanner

Nmap is a free and open source utility for network discovery, administration and security auditing.

It supports ping scanning (determine which hosts are up), many portscanning techniques, version detection (determine service protocols and application versions listening behind ports), and TCP/IP fingerprinting (remote host OS or device identification).

Nmap also offers flexible target and port specification, decoy/stealth scanning, sunRPC scanning, and more.

Features include:

  • Host Discovery – Identifying hosts on a network, for example listing the hosts which respond to pings, or which have a particular port open.
  • Port Scanning – Enumerating the open ports on one or more target hosts. It is a powerful port scanner.
  • Version Detection – Interrogating listening network services listening on remote devices to determine the application name and version number.
  • OS Detection – Remotely determining the operating system and some hardware characteristics of network devices.
  • Scriptable interaction with the target – using Nmap Scripting Engine (NSE) and Lua programming language, customized queries can be made.
  • Gopher protocol support.
  • Smart traceroute.

Website: nmap.org
Support: Documentation
Developer: Gordon Lyon
License: GNU GPL v2

nmap

Nmap is written in C++ and Lua. Learn C++ with our recommended free books and free tutorials. Learn Lua with our recommended free books and free tutorials.

Return to Port Scanners Home Page


Popular series
Linux for StartersNew to Linux? Read our Linux for Starters series.
Free and Open Source SoftwareThe largest compilation of the best free and open source software in the universe. Supplied with our legendary ratings charts.
Linux ReviewsHundreds of in-depth reviews offering our unbiased and expert opinion on software.
Alternatives to GoogleAlternatives to Google's Products and Services examines your options to migrate from the Google ecosystem with open source Linux alternatives.
MicrosoftAlternatives to Microsoft's Products and Services recommends open source Linux software.
AdobeAlternatives to Adobe Cloud is a new series looking at free and open source alternatives to products available from Adobe Cloud's subscription service.
Linux System ToolsEssential Linux system tools looks at small, indispensable utilities, useful for system administrators as well as regular users.
Linux ProductivityLinux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine.
Home Computer EmulatorsHome computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum.
Now and ThenNow and Then examines how promising open source software fared over the years.
Linux at HomeLinux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged.
Linux CandyLinux Candy opens up to the lighter side of Linux. Have some fun!
Best Free Android AppsBest Free Android Apps. There's a strict eligibility criteria for inclusion in this series
Programming BooksThese best free books accelerate your learning of every programming language
Programming TutorialsThese free tutorials offer the perfect tonic to the free programming books series
Stars and StripesStars and Stripes is an occasional series looking at the impact of Linux in the USA
Share this article

Share your Thoughts

This site uses Akismet to reduce spam. Learn how your comment data is processed.