How do i scan a port range with nmap?

  • Man page for nmap

    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.

    The command to scan a port range using nmap is:

    $  nmap -p 1-200 localhost
    Starting Nmap 6.40 ( ) at 2017-03-12  09:34 BST
    Nmap scan report for localhost (
    Host is up (0.00072s latency).
    Other addresses for localhost (not scanned):
    Not shown: 197 closed ports
    22/tcp  open  ssh
    25/tcp  open  smtp
    111/tcp open  rpcbind
    Nmap done: 1 IP address (1 host up) scanned in 0.03 seconds

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