Shulou(Shulou.com)06/02 Report--

Let's show you how to view the host port in CentOS using nmap: server

First, install nmap

Yum install nmap # enter y to install

Second, use nmap

Nmap localhost # View the currently open ports of the host

Nmap-p 1024-65535 localhost # View open ports in host ports (1024-65535)

Nmap-PS 192.168.21.163 # probe the open port of the target host

Nmap-PS22,80,3306 192.168.21.163 # probe the target host port listed

Nmap-O 192.168.21.163 # probe the operating system type of the target host

Nmap-A 192.168.21.163 # probe the operating system type of the target host

Nmap-- help # Please check help for more nmap parameters

Close or open the host port

1. Nmap localhost # View the current open port of the host

2. Ntsysv # Open the system server manager (you need to install yum install ntsysv first), and select the service to turn off or turn on

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