Check port used in linux Print

205

If you want to see which process is using which port (in this case, port 53), you can do it with the following command:

# netstat -tulpn| grep :53

This gives the following output:

tcp        0      0 :::53                       :::*                        LISTEN      1234/named

As you can see, dns (named) is using port 53 on PID 1234.
You can also do it with other ports by replacing the number (53) by another port.

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