computer networking ports

illustration By © Kartick Dutta

Learn About Computer Networking Ports

What Are Ports in Networking?

Ports in networking are like doors that let information enter or leave a computer. They help computers talk to each other.

Why Are Ports Important?

• Ports help different programs on a computer communicate with the internet.
• They make sure the right information goes to the right place.
• They help keep your computer secure by allowing or blocking traffic.

How Many Ports Are There?

There are 65,535 ports in total, but only some are commonly used.

Important Ports to Know

Click to learn about Port 80

Port 80 is used to browse websites. When you type a website into your browser, it uses Port 80 to connect.

Learn More About Port 80

Click to learn about Port 443

Port 443 is like Port 80 but more secure. It keeps your information safe when you browse the web.

Learn More About Port 443

Click to learn about Port 21

Port 21 is used for file transfer. It's like moving files from one computer to another over the internet.

Learn More About Port 21

Click to learn about Port 25

Port 25 is used to send emails. When you send an email, it travels through Port 25.

Learn More About Port 25

Click to learn about Port 110

Port 110 is used for receiving emails. It's used by email clients to retrieve messages from a server.

Learn More About Port 110

Click to learn about Port 3389

Port 3389 is used to connect to a computer remotely using a graphical interface.

Learn More About Port 3389

Click to learn about Port 53

Port 53 helps translate website names into IP addresses so that browsers can load them.

Learn More About Port 53

Click to learn about Port 22

Port 22 is used for secure access to remote computers and transferring files securely.

Learn More About Port 22

Click to learn about Port 23

Port 23 is used for remote access to another computer, but it is not secure.

Learn More About Port 23

Ports In Networking Written By Kartick Dutta

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