Network Mapper [ NMAP ] is a free and open source utility for network discovery and security auditing. 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 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. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X. In addition to the classic command-line Nmap executable
Nmap on Linux For Beginners:-
man nmap Help Command.
nmap ip: [How many Port Open ]ip or host Name
nmap 192.168.0.108-5 [ scaning]
nmap -F -sV destination ip [F is Fast run -sv is service version]
nmap -O -F destination ip [ O Oparating System ]
nmap --script vuln destination ip [script discover script for target]
nmap -A -F destination ip [ A for OS detection,service version,script and traceroute
nmap -p 80,443 destination ip
nmap --open destination ip [open port display]
#nmap link : https://nmap.org/book/inst-linux.html
#Network Mapper#NMAP
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