How do i use nmap to scan a single or specific port?
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Quote from the nmap man page:
While Nmap is commonly used for security audits, many systems and network administrators find it useful for routine tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime.
We have used localhost, but any host can be used or IP address.
$ nmap -p 22 localhost Starting Nmap 6.40 ( http://nmap.org ) at 2017-03-12 09:34 BST Nmap scan report for localhost (127.0.0.1) Host is up (0.00015s latency). Other addresses for localhost (not scanned): 127.0.0.1 PORT STATE SERVICE 22/tcp open ssh Nmap done: 1 IP address (1 host up) scanned in 0.03 seconds
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