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How do it…

Here are the steps:

Open nmap in Command Prompt.
Run the following syntax in the Command Prompt to perform a scan between ports 0-100:

     nmap 192.168.75.137 –p0-100

Run the following syntax in the Command Prompt to perform a fast scan on the top 100 ports:

     nmap –F 192.168.75.137

Run the following syntax in the Command Prompt to perform a scan without any port specification:

     nmap 192.168.75.137