How DNS Works
Jan 22, 2023 9:15 PM

How DNS Works

External YouTube Channel

A look at something you've just used, DNS! I have manually updated the captions to be as accurate as possible. Enable the subtitles and from there you can tr

A look at something you've just used, DNS! I have manually updated the captions to be as accurate as possible. I have manually updated the captions to be as accurate as possible. Enable the subtitles and from there you can translate to your native language via the

In this Video

0:00 - Introduction

0:12 - Why we need DNS

2:07 - The structure of DNS hierarchy

6:15 - Recursive resolution

16:34 - Still need to use the name

18:55 - SNI and ClientHello

22:12 - Caching

25:05 - Cache poisoning

28:05 - Forwarding and summary

► Whiteboard:

https://github.com/johnthebrit/RandomStuff/raw/master/Whiteboards/


The DNS System

DNS (Domain Name System) is a system that translates domain names and hostnames into IP addresses. It is the backbone of the internet and helps computers to locate each other on the network. When you type in a URL, your computer contacts DNS servers to translate it into an IP address which it then uses to connect to the server hosting that website. The DNS server looks up the requested information in its database or caches it from a previous lookup before returning that information back to your computer so you can access the website.

The Domain Name System (DNS) is the phonebook of the Internet. Humans access information online through domain names, like nytimes.com or espn.com. Web browsers ...

A fun and colorful explanation of how DNS works. Hey there! We made this comic to explain what happens when you type a website address in your browser.

Mar 26, 2019 — The DNS provides mapping between human-readable names (like www.amazon.com) and their associated IP addresses (like 205.251.242.103). DNS can be ...