How are you supposed to get your port number.

Solution
Ports are used to identify specific applications running on a host. For example, a web server uses the port 80. Here you have more info about ports: http://geek-university.com/ccna/tcp-and-udp-ports/

To find out ports used by your system, open Command prompt and run the netstat -an command.

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Ports are used to identify specific applications running on a host. For example, a web server uses the port 80. Here you have more info about ports: http://geek-university.com/ccna/tcp-and-udp-ports/

To find out ports used by your system, open Command prompt and run the netstat -an command.
 
Solution