The web server is talking gibberish

You’re building a web server that is only going to communicate over encrypted connections. What port would you most likely need to open in your firewall to allow this communication?

A) tcp/80

B) tcp/443

C) tcp/25

D) udp/53

E) Why limit yourself? Open every port you can find!

The answer: B) tcp/443

This answer is a two-step process. First, you need to know that encrypted web communication usually occurs with the HTTPS protocol. Secondly, you’ll need to know that HTTPS is almost always configured to use TCP port 443.

Want to know more? Watch “Common Ports.”

The fundamental languages used over our computer networks are a standard set of protocols that are used around the world. In this video, you’ll learn about protocols and the set of standards associated with TCP/IP. You’ll also learn the essentials of TCP/IP and how subnetting can be used to build today’s modern networks.