HTTP vs HTML: Unveiling Network Protocols using Telnet

At the surface, this video is about HTTP, HTML, and Telnet. But beneath that this video is actually a demonstration of how every Network Protocol works. A Connection is made via TCP or UDP, a request is sent, a response is received. We demonstration this with HTTP / HTML / Telnet, but this same sequence occurs with nearly all other protocols as well.
In this demonstration, we show you exactly what your web browser does: It initiates an HTTP request in order to download an HTML page, and then it renders it in a way that is more visually appealing.
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0:00 - Intro
0:31 - The greatest webpage ever created
1:20 - The HTML code behind this masterpiece
1:56 - HTML - Hyper Text Markup Language
3:00 - HTTP - Hyper Text Transfer Protocol
3:30 - HTTP Request with Telnet
4:50 - Web Browsers and what they really do
5:38 - Telnet uses ASCII
6:04 - Fin / Outro
6:12 - Networking: The Internet, The Cloud, and Everything in Between
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Did you enjoy this video? If so, check out my Networking course:
pracnet.net/networking
If you want a full training series unpacking Networking Fundamentals and how Data moves through the Internet, check out Module 1 of the course which is available for free on KZbin:
• Networking Fundamentals

[@PracticalNetworking]

So, what do you think... was that not the _greatest_ web page ever created? 😏

[@waverache8296]

Next video on : all types of authentication method ( ie oauth , cert based etc ) . Can we have that ????

[@gag_singh]

waiting for your full ccna course, eagerly.. 🥺

[@x0rZ15t]

The greatest page must contain a tag but you were close! 😄

[@confidential303]

Awesome website! I also trying to learn html ..but it somehow ends at displaying my header h1 trough h6 skills ..and then showing off to my little nephews 😊

[@PracticalNetworking]

@@x0rZ15t Lol, you reminded me of the nightmare that was GeoCities pages once upon a time. Ha!

[@RsGenjil]

Looking forward to this, the current videos have been great. I've gone from procrastinating to watching all your videos on networking over just 2 days!

[@kevinconnolly2963]

You are without a doubt the best networking resource on youtube, if not the internet. Many thanks

[@azeezkola1]

Thank you. It is nice seeing the face behind the informative series of NETWORK FUNDAMENTALS. Thank you once again.

[@jimsvideos7201]

Thank you very much for all the work you put into this series; your teaching approach works for me.

[@infantajeesh7437]

Outstanding video ❤ . Expecting from you some more videos from TCP series as you said.

[@HeadfulofHair]

I just Love your teaching style!

[@Kuriom_Mandara]

It was a timely explanation. Thank you

[@ritooraj]

Yes! Finally learnt how webpages do the magic. Btw I am not a network engineer. But it is valuable to know these things. It helps to connect the dots. I love the way pace your words. You would be a good lecturer in top universities. Thank you!

[@leetanizer]

Excellent vidéo 🎉 keep up the good work Ed 💪 Can’t wait for the full networking course to be released 😊

[@PracticalNetworking]

Thank you =)

[@filipjovanovic4443]

He is a legend for making this

[@aizen9461]

AWESOME WORK

[@MrMkarakaya]

I really like your videos. Thanks for your time and effort.

[@PracticalNetworking]

Thank you for your support =) Glad you enjoyed the videos !

[@cuspajzz]

Great content 😀

[@IliyaDamyanov]

Very informative video.

[@waverache8296]

Next video on : all types of authentication method ( ie oauth , cert based , MFA, etc ) . Can we have that ????

[@KarthikR-mh1tj]

Hello Sir, that was a very good video on the HTTP basics. Would be really appreciated if you could provide a deep dive on the telnet protocol. Thanks for the video. keep inspiring us with great content.

[@PracticalNetworking]

Glad you enjoyed the video =). Telnet merely opens a TCP connection. THere isn't much more to it :) You can use it to open connections on port 25 to replicate SMTP conversations, or port 80 to replicate HTTP conversions (as we did in this video)

[@KarthikR-mh1tj]

@@PracticalNetworking understood sir

[@BrunoMiguelLoureiro]

Hi Ed, thank you for the awesome video series 👍 The first mention of the upcoming course was 3 years ago, do you still plan on going through with it?

[@KaranChecker]

Great video. Could you do a session on coding a bare bones SMTP server ?

[@VeryEasyCookingmymana]

Thanks 🙏

[@franciscopen1681]

now, could you explain what do you mean by establishing a connection and it's implications? also ports and tcp udp thank you very much! great channel

[@austinaaron7018]

Thankyou very much

[@justcurious1940]

Interesting 🙂

[@Easy-Console]

Very well. So the HTTP request consists of basically two steps 1. Make socket connection 2.Send appropriate HTTP protocol string and receive response ?

[@fajarudheenpa6927]

Thank you for this awesome playlist sir. Go ahead. Can you please do a playlist on Linux?

[@PracticalNetworking]

I've already sketched out a video on common linux commands. But I have a few others I have to get to first before I can work on the Linux video =/

[@Tanibu]

Well, I am not a native English-speaker. Do you have caption on your website(multi-languages)?

[@ControlTheGuh]

Hi there, is there an ETA for the course?

[@dawidnazarko926]

@PracticalNetworking I am also interested when we should expect the course to be released. Could you give some insights in the scope of the course because although I am interested into networking maybe it would be too much advanced knowledge for web developer and not the actual Network engineer

[@juanmondragon]

What if you ran telnet on port 443. Would it automatically encrypt it?

[@waverache8296]

Okies

[@marzouqalshammari9152]

Please please can you make lessons for cyber security because I understand the way to explain please. You are suck a good teacher

[@williamstan1780]

Can you teach us networking in the context of hacker ?

[@frankkabbah2980]

Good day everyone, I'm living in the Bronx NY.please were can I get a school here in the Bronx that can offer networking certificate caurse ? Please locate me thanks

[@fyks6447]

Won't work under windows, connection just lost quickly.

[@RealityCheck6969]

If a junior “developer” doesn’t know this then you made a bad hiring decision.

[@s3diali363]

telnet protocol is used almost only in old systems. protocols like ftp, smtp, http, dns... is what devs should be familiar with