What is DNS? (and how it makes the Internet work)

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  • Опубліковано 25 січ 2025

КОМЕНТАРІ • 733

  • @NetworkChuck
    @NetworkChuck  5 місяців тому +59

    DNS can be hacked….use SecureDNS from Twingate to protect yourself and your people: ntck.co/twingate_zerotrust
    🔍 Your Web Browser is Dumb….without DNS🔍
    Did you know your web browser is clueless when it comes to finding websites? When you type in a URL like academy.networkchuck.com, your browser has no idea where to go. That's where DNS, the Domain Name System, steps in to save the day! 🌐
    In this video, we dive deep into the magic behind DNS. We'll break down how your browser queries DNS servers to turn website names into IP addresses, making the internet work seamlessly. From how DNS can be hacked to how you can secure your own DNS with tools like SecureDNS from TwinGate, we've got it all covered. 💻
    🔐 DNS Security Tips: Learn how to use DNS over HTTPS (DOH), DNS over TLS (DOT), and other methods to keep your browsing secure from hackers and prying eyes. Protect your privacy and keep your internet safe.
    🛠 Tools Mentioned:
    TwinGate for SecureDNS
    Raspberry Pi for DIY DNS servers
    AdGuard and PiHole for ad-blocking and DNS control
    Grab your coffee ☕, and let’s dive into how the internet really works!
    👉 Subscribe for more IT tutorials, cybersecurity tips, and fun tech projects!
    🔥🔥Join the NetworkChuck Academy!: ntck.co/NCAcademy
    💻📱Check out our new course, Laptop and Mobile Device Basics: ntck.co/mobiledevices
    **Sponsored by Twingate
    00:00 - Introduction: Why your browser is "dumb"
    01:46 - What is DNS? (The Contacts app of the Internet)
    04:02 - DNS Hierarchy: The Mafia Bosses of the Internet
    09:13 - Securing DNS from Hackers
    15:30 - DNS Records Explained: A, NS, MX, and More
    19:55 - Real-world example: Buying a New Domain
    22:58 - Running Your Own DNS Server and Ethical DNS Hacking

    • @L-Coder
      @L-Coder 5 місяців тому

      first

    • @Hartley94
      @Hartley94 5 місяців тому

      Thank you for this one. Wou you please create one for securing email servers.
      Cheers! K.E

    • @jarbystark
      @jarbystark 5 місяців тому

      everything can be hacked , Chuck ;)

    • @Imassin
      @Imassin 5 місяців тому

      Please, I want to speak with ChatGPT on my Windows PC, but there isn't a version for Windows. Can anyone help me overcome this problem?

    • @manjilunnobi
      @manjilunnobi 5 місяців тому

      Public yha site paid dns required more secure your IP ... .. more firewall in needed

  • @tylercode2207
    @tylercode2207 4 місяці тому +57

    there is no spoon -- Your videos helped get a job in IT and change my life forever. Thank You brother.!!

  • @chisomogbonna8992
    @chisomogbonna8992 3 місяці тому +19

    Your humor just makes it more exciting 😭... I much love networking

  • @alex-iac-sf
    @alex-iac-sf Місяць тому +2

    Thank you @NetworkChuck! This is such an amazing explanation of a topic that I've struggled with for some time...and I am someone who had with technical education before starting with cloud! Very fun and educated video! Mhmmmm, that was me sipping coffee :)

  • @RazoBeckett.
    @RazoBeckett. 5 місяців тому +164

    My favorite topic DNS, remember "it's Always DNS"

    • @RazoBeckett.
      @RazoBeckett. 5 місяців тому +13

      @Mr.JohnLong atleast 3 times a day before eating so like before having breakfast, launch and dinner, and remember if your gf cheats on that's not her fault "It's always DNS!"

    • @aRandomHomelabber
      @aRandomHomelabber 5 місяців тому +3

      Redshirtjeff

    • @tpevers1048
      @tpevers1048 5 місяців тому +1

      Why DNS 😢

    • @johng.1703
      @johng.1703 4 місяці тому +2

      except when it is IPv6

    • @AmDDJunkie
      @AmDDJunkie 4 місяці тому +3

      Came here to say this. It's DNS, always DNS.

  • @L-Coder
    @L-Coder 5 місяців тому +52

    Learning Networking is very Important

    • @jarbystark
      @jarbystark 5 місяців тому +7

      understanding basics that dont change in 20 years truly does. thats the base knowledge

  • @keithrbumgarner
    @keithrbumgarner 5 місяців тому +83

    You’re right “there is no spoon”, only sporks.

  • @Bunny99s
    @Bunny99s 5 місяців тому +18

    Very good summary of most of the important parts. Some time ago I actually read through the whole RFC as I implemented my own DNS server from scratch in C# :D It currently runs on my raspberry pi with mono.
    ps: SOA stands for Start Of Authority, not "State" :) Other than that all pretty accurate and comprehensive.
    pps: fun fact: in german "acid" is called "Säure" and DNA (Deoxyribonucleic acid) is actually called "DNS" in german (Desoxyribonukleinsäure). I think that's pretty fitting, the DNA of the internet :)

    • @ppdan
      @ppdan 5 місяців тому

      Fun fact : in dutch SOA is short for "seksueel overdraagbare aandoening" in english STD (sexually transmitted disease)

    • @Bunny99s
      @Bunny99s 5 місяців тому

      @@ppdan :D That's really funny. Just reminds you how dangerous the internet is :P So don't plug into unknown systems unprotected....

    • @jeffreyhan8398
      @jeffreyhan8398 4 місяці тому

      haha

  • @kylelucas9418
    @kylelucas9418 20 днів тому

    Currently in the process of obtaining my Cybersecurity degree from my online college. A lot of this information can become rather tedious and boring when you intake so much at once Thank you so much for making sense of some of these dry topics, and for making them fun! Your videos really help me with my studies. I appreciate you and there is no spoon!

  • @Tin-m5c
    @Tin-m5c 5 місяців тому +34

    the editor on this video is insane 😂😂😂

  • @lilpaulbeats7678
    @lilpaulbeats7678 5 місяців тому +280

    Chuck appreciation button>>>>>>>>

    • @nikolaslehto8827
      @nikolaslehto8827 4 місяці тому +11

      ahh yes, the three dots > report button

    • @judekeyz3296
      @judekeyz3296 4 місяці тому +1

      ​@@nikolaslehto8827😹😹

    • @VulpineFriend87XD
      @VulpineFriend87XD 2 місяці тому

      ​@@nikolaslehto8827👍

    • @astutusmortuus
      @astutusmortuus Місяць тому

      That was hilarious when he said “like when you know a guy that knows a guy that knows a guy”
      Great video.

    • @darkkthur
      @darkkthur Місяць тому

      Where's Pablo's appreciation button? 😢

  • @Phenom0100
    @Phenom0100 29 днів тому

    I work as an IT Support Specialist where I deal with Wireless AP's, Switches, and VOIP phones. I have now been tasked with dealing with hostmaster work as well. This video helps me get a better understanding of dns.

  • @jimshapedcoding
    @jimshapedcoding 5 місяців тому +1

    I was looking into your videos from 4 years ago, and today, the editing and the quality of the metaphors to simplify your explanations is second to none, thanks for inspiring how instruction should be done.

  • @whoacarh
    @whoacarh 4 місяці тому +37

    Sorry, Chuck, but you missed a HUGELY CRITICAL aspect. The hosts file. Before it reaches out to stub to resolve, it'll look at anything in the hosts file to see if there's a static entry. This is also a common malware/hacking method to mess with people and hack them. It's literally the first thing you should probably check to ensure it's not interfering with something in DNS (because? it's literally the first thing your device will check). If your device checks that first, you should check it first as well. There's a lot of malware out there that will bar you from even looking at your own hosts file, even though you're an admin, by the way. It's kind of a dead giveaway that your device is infected.

    • @SuperPegMeg
      @SuperPegMeg 12 днів тому

      are you forgetting this is a BASIC networking video???? Literally nobody is getting that deep into the weeds yet if they're watching this video. Or are you just trying to sound like the smartest guy in the room and flexing your dick?

    • @dreamsneezer8668
      @dreamsneezer8668 4 дні тому

      Good call, also keep an eye on/protect the cache and in most cases don’t use DDNS

  • @cedarhamilton
    @cedarhamilton 4 місяці тому +5

    "There is no spoon" from The Matrix. You and your movies. You know a message is no longer a secret when you publish it on DNS. Everybody and their computers know it. Love your videos and humor.

  • @オールマイト-y1f
    @オールマイト-y1f 4 місяці тому +3

    This was fun, I know dns but still liked it. It's been a while since I've seen any of your videos. I still remember before you went YT full time. You've done so well. Keep it up!

  • @mtthsgrr
    @mtthsgrr 4 місяці тому +4

    hey buddy, thank you for making the things I need to study super fun. You're a true friend

  • @7ru7h0n3s7yf0r3v3r
    @7ru7h0n3s7yf0r3v3r 5 місяців тому +5

    This fits nice and snug into your CCNA playlist. Appreciate the content!

  • @hassanfazeel2354
    @hassanfazeel2354 5 місяців тому +12

    Also, please teach how to prevent DNS servers from getting hacked in upcoming videos.

  • @alsothejiraguy
    @alsothejiraguy 5 місяців тому +112

    It's not DNS.
    There's no way it's DNS.
    It was DNS.

    • @farixromero517
      @farixromero517 5 місяців тому +2

      all days at work

    • @goat5671
      @goat5671 5 місяців тому +1

      pretty sure i have a mouse pad with that haiku

    • @ElementalITcc
      @ElementalITcc 5 місяців тому +2

      it's always dns

    • @vandorb12
      @vandorb12 5 місяців тому

      Ahh, I have this haiku framed in my office.

    • @CookieXD1998
      @CookieXD1998 4 місяці тому

      It was a full DHCP Server... We had no free internal IP addresses for that network left.

  • @MateriaDispuestaInc
    @MateriaDispuestaInc 4 місяці тому +1

    I haven't seen the full video, but WOW the first 2 minutes. You explanations are awesome! Thanks for doing this.

  • @Amith332
    @Amith332 4 місяці тому

    your explanation with connecting real world examples is too good man !!

  • @Ari-pq4db
    @Ari-pq4db 4 місяці тому

    I love this, this is packed with so much knowledge. Keep them coming ❤❤❤

  • @PabloBonales-g5i
    @PabloBonales-g5i 29 днів тому

    Pablo knows everything.
    Pablo just wanted to refresh a bit on DNS.

  • @moslimislam5714
    @moslimislam5714 5 місяців тому

    Perfect timing. I recently took a deep dive into multiple ways to do a MITM attack. DNS spoofing is one of them.

  • @Milhouz
    @Milhouz 5 місяців тому +23

    How am I supposed to eat my cereal when "there is no spoon"!

  • @aayushghale3128
    @aayushghale3128 4 місяці тому +1

    I just finished my CNS exam and now i get recommended this vid😂

  • @Kurplix
    @Kurplix 5 місяців тому +4

    Just finished my cup of coffee. Now I'm ready for this video!

    • @jarbystark
      @jarbystark 5 місяців тому +1

      i dont drink coffee at all and work in IT for 17 years. im an imposter

    • @StoneColdSolidus
      @StoneColdSolidus 3 місяці тому

      I'm in IT for 75+ years I can't do it without steroids and painkillers

  • @Iamolivialondon
    @Iamolivialondon 4 місяці тому

    yooo, the comedy in this video really helps me to grasp the concept! Especially mafia boss!

  • @erla5768
    @erla5768 5 місяців тому +1

    Thank you so much for your content. You offer a lot of young people a perspective.

  • @curtijam6302
    @curtijam6302 4 місяці тому

    Great video! Clear, concise, and fun. Love the content.

  • @masslubricat9850
    @masslubricat9850 5 місяців тому

    Awesome video, Chuck! Could you dive deeper into setting up a homelab server, particularly the hardware requirements for a budget-friendly build? It'd be great to see a comparison of the cost-effectiveness and benefits of running a homelab versus leveraging free cloud solutions or opting out of a homelab entirely. Keen to see more in-depth content on this-keep up the great work!

  • @steph_in_tech
    @steph_in_tech 5 місяців тому +1

    I have learned so many cool and useful things from this channel. Good job Chuck!!❤

  • @robbbaseee5081
    @robbbaseee5081 5 місяців тому

    Thank you Chuck! You are an amazing teacher and you make the mundane fun ❤

  • @warrendlm1
    @warrendlm1 5 місяців тому +1

    I just started Network+ I love learning about this stuff

  • @utkarshakya
    @utkarshakya 4 місяці тому

    You don't have the Idea how much I Learn from your videos. I'm kid from INDIA, and I request you don't stop it. ❤

  • @shahzadkhalid
    @shahzadkhalid 4 місяці тому

    Awesome way to explain … I will use this way to educate others on dns ……keep making good videos chuck

  • @Seedlinux
    @Seedlinux 4 місяці тому +1

    One of the best DNS video explanation I have seen. Kudos.

  • @Aurian_
    @Aurian_ 5 місяців тому +1

    honestly i hate your coffee breaks but i love your content 😅

  • @blacksunXX
    @blacksunXX 5 місяців тому +1

    From one Chuck to another; you rock, dude!

  • @stevenkenney9473
    @stevenkenney9473 5 місяців тому

    Nice work, you nailed it and made it entertaining. I will refer my students to this.

  • @infinityminuszero
    @infinityminuszero 4 місяці тому

    Pablo knows everything. Pablo is the goat.

  • @bendadziegh24
    @bendadziegh24 3 місяці тому

    Solid video. Thanks for the kind words in your secret message too.

  • @InsafDel
    @InsafDel 24 дні тому

    Thanks maan ! you made it super fun and rich of info

  • @MaameYaa-wl6if
    @MaameYaa-wl6if 5 місяців тому +1

    I love your teachings it has helped a lot

  • @nightmarenova6748
    @nightmarenova6748 4 місяці тому +1

    "there is no spoon" Awesome video as always Chuck! I was just in the process of choosing between self-hosted AdGuard and NextDNS

    • @shivanagendra2406
      @shivanagendra2406 4 місяці тому

      Which command used to get answer? Im strucked

    • @nightmarenova6748
      @nightmarenova6748 4 місяці тому

      @@shivanagendra2406 i used the "dig" command and im also in Linux, not on Windows, don't know if Windows has that cli command

    • @shivanagendra2406
      @shivanagendra2406 4 місяці тому

      @@nightmarenova6748 ok tq

  • @chokoloytv8776
    @chokoloytv8776 4 місяці тому

    Hey sir chuck, can you explain what is the purpose of APN?

  • @Shubham-Mishra
    @Shubham-Mishra 5 місяців тому +3

    Yeah CCNA ❤ networking video 🎉❤

  • @ATR-rw5ie
    @ATR-rw5ie 5 місяців тому

    Please make a practical video on each and every protocol you know....❤❤

  • @maleeshamevan
    @maleeshamevan 4 місяці тому

    Im a fan of chuck. Really Love you and your contents

  • @brandondyck20
    @brandondyck20 5 місяців тому

    Check with different domain hosting sites, they won't charge you for WHOIS while some do. Find it irritating they charge for that kind of feature.

  • @sahelikantha93
    @sahelikantha93 5 місяців тому +2

    Can anyone tell me if the CCNA course with 24 videos on this channel a complete and exhaustive series? Or there are going to be more videos in that playlist??

    • @dfoy7266
      @dfoy7266 5 місяців тому +1

      I am curious about this as well

  • @javierahermosilla8734
    @javierahermosilla8734 4 місяці тому

    You have the best tech videos fr

  • @ionamygdalon2263
    @ionamygdalon2263 4 місяці тому

    Really looking forward to PART 2 😁

  • @StephenHalls
    @StephenHalls 23 дні тому

    Helpful run through, much appreciated - also, there is no spoon.

  • @javajoint
    @javajoint 5 місяців тому

    the followup video (or perhaps you have already done this one?) : now that I have resolved the DNS address to an IP address, how do I get to the server via the IP address? (basically: part 2)

  • @Reaper_1994
    @Reaper_1994 4 місяці тому

    Hey, will you ever do a WiFi 7 video explained similar to the WiFi 6 video? Or have you done one already and I've missed it?
    You're the reason I was excited for WiFi 6 and it has now filtered down to my team mates as well who have been helping upgrading our customers.

  • @raffiepro
    @raffiepro 5 місяців тому +2

    even back then most people didn't really remember any phone numbers apart from their own, they used phone books (or whatever they were called)

  • @HeathenHacks
    @HeathenHacks 4 місяці тому +2

    5:10 lmao at the *Kokey* reference. 😂

  • @Information_security-s7u
    @Information_security-s7u 4 місяці тому

    Professor, thank you for your efforts. I am following you and one of your fans. I am a beginner student. If you would be so kind, I would like the correct steps to implement a man-in-the-middle attack on the network and access the devices connected to the network.Thank you very much.

  • @johnpaulmejia6259
    @johnpaulmejia6259 4 місяці тому +1

    Your viewer here from PH 🙋‍♂

  • @keithjenkins6232
    @keithjenkins6232 4 місяці тому

    1. Great job on this explanation! Def helped to better understand DNS! 2. It is funny that Bernard's phone number goes to a McDonalds in San Jose, CA! lol

  • @Unknown-Zeus
    @Unknown-Zeus 4 місяці тому

    22:58 Nailed it man, "I don't care It's my video" 🤣

  • @ricardoadamec-qy1xd
    @ricardoadamec-qy1xd 4 місяці тому

    I wanted to create my own authoritative DNS server but it was kinda scary to configure something then switch it from cloudflare, then wait and pray that my services will work when DNS changes are fully propagated. Now i think i have better understanding of different types records so i think i will do it sometime soon. Anyway where is that spoooon ;D

  • @hiimnew1221
    @hiimnew1221 4 місяці тому

    Chuck your videos are always top-notch and easy to understand especially with the schematics and your lovely personality but please for the love of god make something that doesn't require a credit card, every time I'm following along with a tutorial I get halfway through then I'd have to sign up with a credit card-- please think of the rest of us who might not have credit cards and aren't from the US

  • @noeldunienville199
    @noeldunienville199 4 місяці тому

    I absolutely love this Guys content 🤗

  • @B2DT11B
    @B2DT11B 4 місяці тому

    It is crazy to think about DNS files being measured in kbs and a simple txt file. Paul Mockpetris earned his Hall of Fame recognition. The internet is awesome.

  • @Finito54ify
    @Finito54ify 4 місяці тому

    I love the reference from Matrix, one of the reasons why IT fascinates me so much - "there is no spoon"

  • @dr34m3r_
    @dr34m3r_ 4 місяці тому +1

    I gave in at "Network Chuck from the future here...." 14:13 😂

  • @reDD9869
    @reDD9869 4 місяці тому

    My stub has been quite resolved, thank you.

  • @GeorgeVina
    @GeorgeVina 5 місяців тому

    Loved this video! How do you make concepts so easy to understand? .... there is no spoon

  • @dhruvhim
    @dhruvhim 4 місяці тому

    A raspberry pi with pihole installed and you can use dns over https with cloud flare. Or go with unbound if you are more concerned with using cloud flare and quad eight.. Secure dns for whole home.

  • @HossamTalaat-nk7hf
    @HossamTalaat-nk7hf 2 місяці тому

    waiting for part two boss ✊

  • @JeffGeerling
    @JeffGeerling 5 місяців тому +35

    #ItWasDNS

    • @Supermath101
      @Supermath101 5 місяців тому

      Did you get deep-sleep on the Raspberry Pi Pico 2 working yet?

    • @shonastudies
      @shonastudies 5 місяців тому +1

      Only one comment 😅 lemme fix that 🎉

    • @Rohan-rb5le
      @Rohan-rb5le 4 місяці тому

      I finally went to a micro center for the first time. Sadly i live in switzerland, i dont have a micro center :(

    • @Rohan-rb5le
      @Rohan-rb5le 4 місяці тому

      Got a raspberry pi 5 there

  • @miguelfmsmac
    @miguelfmsmac 4 місяці тому

    Your videos are awesome...Can you please share what software/hardware you are using to present your tutorials on the screen (freehand writing) with all the diff colors and stuff. BTW, I'm using a MAC computer. Thanks!

  • @KickingitwiththeKrays
    @KickingitwiththeKrays 2 місяці тому

    there is no spoon. Loved this video , Awsome !!

  • @Cr4zYH3aD
    @Cr4zYH3aD 4 місяці тому

    Fantastic video for learning!

  • @Sujith_Nexis
    @Sujith_Nexis 4 місяці тому

    Good Explanation bruh👍👍👍👍

  • @geisterkind1
    @geisterkind1 2 місяці тому

    there is no spoon .... Thanks NetworkChuck!! You are awesome too, take a sip of coffee

  • @tubeDude48
    @tubeDude48 5 місяців тому

    Well done, Chuck! 👍

  • @obi1jim316
    @obi1jim316 3 місяці тому +1

    7:05 what's happening here, I don't get it. My mind is in the gutter, there's got to be another way to interpret this. :|

  • @skkcyber
    @skkcyber 4 місяці тому

    mentioned Philippines. Mabuhay Network Chuck! :)

  • @thestoneworks
    @thestoneworks 4 місяці тому

    We need a syslog server tutorial!

  • @nraelserutluc8669
    @nraelserutluc8669 5 місяців тому

    GD bless you and family Mr Chuck. Ty, I thank the LORD for filling you w/HIS purpose and your desire to share

  • @moxie_ST
    @moxie_ST Місяць тому

    Cool stuff mannnnn ✌️🤘🤘🤘🤘

  • @jg6536
    @jg6536 4 місяці тому

    What software are you using? Visual studio?

  • @simple_networks
    @simple_networks 5 місяців тому

    Very informative, as per usual! A couple of questions. If I am connect through a VPN service, like ExpressVPN, are my DNS requests routed through there as well, or are they traveling separately (and therefore exposed) from my actual web traffic. Second question, are your ISPs DNS servers also "recursive" similar to your Google example?

    • @sylaan
      @sylaan 5 місяців тому

      Yes (normally) and yes.

  • @SuperPegMeg
    @SuperPegMeg 12 днів тому

    Am I the only one who finds the dialing of numbers on rotary phones actually enjoyable/cathartic? Like yeah, it's a bit tedious to have to rotate the dial for every single number, but the sound of the dial returning back to its resting point is like extremely ASMR for me. Maybe it's just cuz I grew up in the era when buttons had already replaced the standard rotary phone and I only had to use a rotary phone like a handful of times in my yute.

  • @halfxyou
    @halfxyou 5 місяців тому

    Chuck, would love for you to show us how to self host a DNS server using Quad9 on a Pi-Hole

  • @未来私
    @未来私 5 місяців тому

    There you are with another awesome video.
    Is there anything you can't make easy to understand.
    No is probably the answer to that question, but maybe there is one subject, cars, wood...SPOONS!!
    Spoon, I'm sure you can't make a spoon interesting, I challenge you.

  • @DjehutimasAsarRa
    @DjehutimasAsarRa 5 місяців тому

    Didn't see the link to how to set up Twingate

  • @LiamRoss-tk2qo
    @LiamRoss-tk2qo 4 місяці тому

    I like network Chuck. And I like his presentation style.
    But who is the Bob Ross of cyber security? ;)

  • @ali52800
    @ali52800 4 місяці тому

    So what I should use as normal person? DoT or DoH or DoQ I’m confused 😅

  • @moggel_puh7470
    @moggel_puh7470 4 місяці тому

    Yes, "there is no spoon"! Thx for this great lesson!

  • @ali-mw5no
    @ali-mw5no 5 місяців тому

    what is the point of running your own DNS server when you can use something like quad9 under DOH? (considering you have to use some recursive DNS server anyway even when you run your own DNS Server in your local network)

  • @_HARSHABR
    @_HARSHABR 3 місяці тому

    Hello chuck i have a question "Why can't we use any website's literal name has it's website ip address "

  • @jlbruiser
    @jlbruiser 4 місяці тому

    This guy is really good like damn🤯

  • @kaltonian
    @kaltonian 4 місяці тому

    Thanks chuck, i will watch this another 2 times just so that it sticks in my head, the video caught my attention because my pc was asking me about it, at the time i didn't know, so when i saw this i thought ahhh.....nice 1 chuck, so yeah nice one and thanks chuck, oh one more thing....should i continue to use a vpn as well as dns protection ?

  • @efromme
    @efromme 5 місяців тому

    Great for a review, also meme game strong. About lost it at Mr cool ice 😂

  • @stanzo89
    @stanzo89 3 місяці тому

    I wish you would do a video like this explaining Handshake $HNS TLD's. That is the ultimate way to get away from those "mob bosses" regarding ICANN. Not your keys, not your domain.