How to Install Nmap in Cygwin
By Scott McMahon
Updated September 28, 2017
Nmap is a software program for scanning a network for security vulnerabilities and mapping the structure of a network. It can be useful for generating a topography of your network or searching for security holes you may have inadvertently left open. Although Nmap is a Linux application, you can run it on Windows through Cygwin.
Download WinPCAP from winpcap.org and install it on your system. Accept all of the default installation options.
Download Nmap for Windows from the nmap.org website.
Extract the contents of the Nmap zip file to your desktop, then double click the extracted folder to open it.
Double-click the "nmap" folder inside of the folder you just opened from your desktop. There are two levels of folders here, and you must open both.
Press "Ctrl" and "A" on your keyboard to select all the files in the folder, then press "Ctrl" and "C" to copy them.
Open the Start menu and type "c:\cygwin\usr\local\bin" without quotation marks in the Search bar. Press "Enter" to open this folder. If you installed Cygwin to a nondefault location, replace "C:\cygwin" with the path to your Cygwin folder.
Press "Ctrl" and "V" on the keyboard to paste the Nmap files into the Cygwin bin directory.
Open the Start menu and type "cygwin." Select "Cygwin" from the list of results to open it.
Type "nmap --version" to display the Nmap version. The program is now installed.
Scott McMahon has been writing professionally for over 10 years. He specializes in technology and has written dozens of technical manuals for end-user software and middle-ware services. He is a regular columnist for the Texas Technology Entrepreneur Association's "Tech Buzz" periodical. McMahon holds a Master of Arts in journalism from Texas A&M University.