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Asset scanning with nmap and ndiff

Oct 23, 2009, 05:02 (0 Talkback[s])
(Other stories by Jack Wallen)

"Nmap is a command line tool that rapidly scans a network gathering information about machines and ports. It is easy to use and flexible, making it perfect for the job of asset scanning. In this tutorial you will see how to set up a system that will regularly scan your network and create a report that can then be used to keep inventory of your networked machines.

"Installing

"Before we get to the actual scanning we need to install a couple of applications. Since I am using a Ubuntu system, we’ll run the installation using apt-get. With some simple modifications, you can do the same on a fedora system. The two applications to install are: nmap and ndiff. We use ndiff to compare the results of scans. To install these applications open up a terminal window and issue the following command:"

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