Finding Ports of Call. Netstat shows you the ports that are open on your computer. It also allows you to detect any unauthorized programs that might be running on your computer's ports and collecting confidential information about you. Run Netstat on your computer, save the information that it discloses, and determine what ports are open on your computer. Are all these open ports authorized?

Note: Before performing this exercise, you should be connected to the Internet and running another operation such as downloading a file.