Question: Part-2: Exercise: Find out TCP Port and Ping Command : Exercise 1: Find out if a port is open or closed : Type netstat -a

Part-2: Exercise: Find out TCP Port and Ping Command:

Exercise 1: Find out if a port is open or closed:

Type netstat -a and press Enter. A list of all your active TCP/IP connections will populate. The port numbers appear after the IP address with a colon separating the two. For example, if your IP address is 192.168.1.1 and you see an entry for 192.168.1.1:2869, it means port 2869 is open. If you see port numbers listed after 0.0.0.0, it means that all network adapters on your computer have the listed ports open and in the state indicated in the State column on the right. Port numbers listed after 127.0.0.1 are open on your computers loopback address only. The loopback address is a virtual network interface mainly used for connectivity

testing purposes. Provide a screenshot with your result.

Get the latest list of port numbers from IANA at http://www.iana.org/assignments/port-numbers. Find out what port numbers need to be blocked to stop echo and chargen.

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