Running a scan without any argument except the network address yields the following: # nmap 192.168.0.0/24 Let's assume your local network is 192.168.0.0/24, and you want to run a scan on this network. You also should consult the Nmap man page by running man nmap. After installing Nmap, you can run the nmap command without arguments to display all of its options. Substitute dnf for yum if you are on Red Hat Enterprise Linux 7 or newer. To install Nmap on Red Hat Enterprise Linux 8 or Fedora, you'd run: # dnf -y install nmap In the following post, we'll walk you through on how to install Nmap, use it, and, most important, get more to know about your network. The Nmap suite includes an advanced graphical user interface and results viewer ( Zenmap), a flexible data transfer, redirection, and debugging tool ( Ncat), a utility for comparing scan results ( Ndiff), and a packet generation and response analysis tool ( Nping).īesides being free, Nmap is very flexible, portable, well-documented, and easy to use. The tool is used by network administrators to inventory network devices, monitor remote host status, save the scan results for later use, and so on. Nmap is very powerful when it comes to discovering network protocols, scanning open ports, detecting operating systems running on remote machines, etc. Nmap, which stands for 'Network Mapper,' is an open source tool that lets you perform scans on local and remote networks.

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