In Section $8$: Network Security, you learned about port scanning, specifically using the

Nmap tool. As you may recall, port scanning tools display which ports on a network are

open for communication. Whether or not a port is open can help with determining the

next steps a pen tester might want to take in launching attacks against a network.

Creating a simple port scanning tool in Python is easy, and is a great way to both learn

socket programming with Python, and learn how port scanners work.