It was designed to rapidly scan large networks, but works fine against single hosts. 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. 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 (“Network Mapper”) is a free and open-source utility for network discovery and security auditing. Introducing to NmapĪccording to the tool’s website, we find the following definition: That is why we have prepared this post with the intention that you learn how to use the nmap command in Linux. That is why the more information we have about this command the better. One of the commands that have become essential for many sysadmin and Linux professionals is the nmap command.
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