WEBVTT

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Music

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Learning Objectives

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Understand the concept of IP addresses.

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Differentiate between IPv4 and IPv6.

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Explain the function of the domain name system.

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Find an IP address using a command line tool.

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Imagine you want to send a letter to a friend.

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You need his home address to make sure it reaches the right place.

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The internet works in a similar way.

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Every device connected to the internet has a unique address called an IP address, just like a home address.

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An IP address, internet protocol address, is a set of numbers that identifies a device on a network.

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It helps computers, phones, and websites find and communicate with each other.

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These numbers may look confusing, but they follow rules.

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There are two types of IP addresses.

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IPv4, internet protocol version 4, uses four sets of numbers like IPv6, internet protocol version 6, uses a longer format with letters and numbers like.

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Let's say you want to visit your favorite website, YouTube.

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Do you type in a long IP address?

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No, you just type www.youtube.com.

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That's much easier, right?

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This is where the domain name system DNS helps.

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DNS acts like an internet phone book, translating human-friendly website names into machine-friendly IP addresses.

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When you type a website name, the DNS quickly finds the correct IP address and connects you.

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Without DNS, you would have to memorize long numbers instead of easy names.

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You will find the IP address of a website using a simple command.

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One, open command prompt, windows, or terminal, Mac, Linux.

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Two, type, ping www.google.com.

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Three, press enter and see the IP address appear.

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This command shows us how DNS translates a website name into an IP address.

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To wrap up, today we learned, IP addresses are like home addresses for devices.

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IPv4 is the old format, and IPv6 is the newer one.

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DNS makes the internet easier by converting names into IP addresses.