Which ports do you need?

You are planning to install a web server on your network. To allow access from other computers, you’d like to open the necessary ports in your firewall. Which ports should you open to allow web server access? Pick two.

A) tcp/20

B) tcp/110

C) tcp/80

D) tcp/443

E) 867-5309

The answers: C) tcp/80 and D) tcp/443

A web server normally communicates using both HTTP and HTTPS protocols. HTTP uses TCP port 80, and HTTPS uses TCP port 443. To allow access for both non-encrypted and encrypted web traffic, both TCP port 80 and TCP port 443 must be allowed through the network.

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.