Computer Networking (Deepdive)
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- Опубликовано: 19 июн 2024
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In this video I try to explain computer networking with pieces of paper. This hopefully explains why in some universities the OSi layer model is taught. While I find the OSI model kinda useless, "thinking in layers" is extremely important. Blackboxes of layers allow us to focus on what matters, and ignore anything else.
HTTP Desync Attack Explained With Paper: • HTTP Desync Attack Exp...
HTTP Request Smuggling - False Positives: • HTTP Request Smuggling...
Chapters:
00:00 - Intro
00:42 - Send Data Between Computers (Physical Layer)
01:31 - Find The Correct Computers (IP Layer)
04:24 - Identify The Target Program (TCP Layer)
06:40 - Think in Blackboxes!
07:24 - TCP Layer Blackbox
08:32 - Linux Kernel Implementing The Layers
09:54 - netcat Example
10:30 - Looking at Packet with Wireshark
11:04 - Layers are Everywhere (Phone Call)
11:49 - Hacking with Blackboxes
13:11 - Outro
13:28 - LiveOverfont Ad
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Less related to networking, but another video idea in this style might be explaining the difference between Encoding, Encryption, Hashing etc.
Those terms get misused a lot and are really useful to understand
Just like authentication and authorization
@@NoxiousPluK "auth"
@@overlisted Authentication*
@@Nunya58294 "auth"
Great idea!
Can't wait for you to explain routing! This video was great :)
Absolutely loving these Deepdive series
Been watching your content for a couple years now and I am absolutely floored with the change in quality and presentation you've made over time. I am excited to see what you create in the future. I have been a big fan of your Minecraft stuff, it used to be a big part of my life way back in the alpha days when a friend and I used to run a server.
Edit: The advertisement at the end was awesome!
Taking a minute to appreciate the video production quality with all that animations and actions in tile bars, OG work
This is amazing! You're doing a good job at explaining it and making it seem not complex like it does at first.
you explained this sooooo good. makes me understand more about what my uni prof was trying to explain for the past month or so in just 13 minutes
you are making me starting thinking i know everything about computers obviously I don't but dumbed down explanations like this makes it so everything just makes since and helps me understand better with what I don't know thanks for making these videos man : )
Your explanations are some of the best out there! I'm looking forward very much for the tunneling video, I already know it'll be awesome! Also, ever since I got Liveoverfont, I've been programming 10x more efficient!
one of the best expalanation ive ever seen about ISO/OSI Modell
Love the Deepdive series. Please, keep it up.
I was just assigned uni coursework on this very topic, video timing couldn't be more perfect. Happy New Year!
this is what i have been missing in my learning journy. Thank you liveOverflow. And please , never quite making these videos. This is what i need.
Thank you LiveOwerflow , I was looking for this exact video , I was not able to understand it before but not its all clear !!
Thanks a lot !!
I hope you will keep this good work up !!
👏👏👏👏👏👏
Damn! The "LiveOverfont" ad is cool AF and the font itself fit perfeclty! Each new video is more and more enjoyable to watch, keep it up!
always love seeing this guys latest uploads :)
I love the way you have just explained things in details, as an ethical hacker/Pentester I love the small details which don't seems to matter but they matter a lot.👍👏👏
One of the best-ever explanations for layers ....
i have some basic concept about 4-layer of computer network. but this video still impress me alot ! what a wondeful discovery of journey in computer network ! really high quality video !
Ngl even the ads on your channel are one of the best I've ever seen! Great work!
Wah! Appreciate your effort. It's been years that i was thinking how tcp talking to tcp possible. You cleared out that abstraction.
best simplified video ever on Computer Networking... I hope you will continue to add more content on "General Security Education".. i will definitely share this over my network. Amazing Work!!!!
This series are insane, thank you so much
this is amazing ...thanks for putting hardwork and making this great content free
Always great to watch your videos!
Again an awesome video! You really have a talent to explain things, thank you so much for this. Since you asked for a topic suggestion, I always struggle with certificates 🤷♂
loved the font ad at the end !
You make every thing easy to learn , Thank you for that i hope you never stop , i realy enjoy
Very good video again. This is top-tier educational content and I can't wait for the next one. Your mum must be proud!
It clicks only when I watch your videos! Thanks for sharing your understanding of this world!
Good work, it was helpful and easy to understand.
I also loved the small animations you created.
for the suggestion I would say SSL and different kinds of it are confusing for me, I think it's worth a video.
Thanks!
Your videos I always look up to. Please make series on Networking. We are badly in need of it.
Such a beautiful explanation!
Great high level overview. Thanks
Best explanation about computer networking on RUclips.
bro die deepdives sind richtig gut, weiter so!
I can see why you did it, but even implying for simplicity that switches look at IP addresses is definitely going to make any network admin cringe.
However, the main point of the video is that most hackers don't need to know how their packets are transmitted and just need to know general information about how the protocol works.
Since accepting abstraction as a hacker (most the time) appears to be the main thesis of this video, this video works. Networking can be a very dry topic. Networking 1 was the only class I've ever taken where the professor had to give us a 5 minute break in the middle so we didn't fall asleep. And that was only the first 3 of ~16 total credit hours worth of classes I needed on networking for my undergrad.
So tl;dr: This video is for hackers who don't know anything about networking. It is a deep dive, but networking is so deep a subject that this barely scratches the surface.
The LiveOverfont looks really good!
You explained this way better than my uni prof. Thanks!
This is a great explanation. Thank you!
Your videos are always so interesting! I love It!!
Your content is crazy good, thank you !
Excellent explanation! Thank you so much.
This is the perfect video for learning for my networking exam. Thanks! :D
I have the model down through rote memorization but I must say your explanations make it far more intuitive.
you have brought yourself to the next level
Wow. This makes *so much sense* now. I feel... enlightened!
Exceptional work.
Everything made easy.
What a great content. Really wish I had these type of resources back in school. I had to buy a notebook and draw all of these concepts with my shitty drawing skills to make my brain understand the concepts. Textbooks and professor presentations are nice, but these visual representations are great. Really helps students to understand abstract concepts with real world graphics.
Awww, I really hoped you'd explain OSI layers 5, 6, and 7. I never understood why they need to be separate.
I agree, a deeper dive into the other layers would be much appreciated.
Layers 5-7 I could understand why they were initially separated, because there used to be separate protocols for session management (5) and data transformation (6). I don't think the ordering of the upper 3 layers is as important anymore because now many things are just HTTP REST API's of some sort.
Sessions are often managed by the application themselves by using Cookies, bearer tokens (JWT) or some other stateful/stateless implementation. And while TLS is regarded as a Layer 6 protocol, doing things like JSON, XML, YAML transformation can apply here too.
I think the utility of being able to cram anything into a TCP connection on top of HTTP being a simple request/response model helped it gain popularity and with respect to an HTTP stack, separating "Application" into 3 layers is not very useful as it shouldn't concern Network Engineers who should be focused on layers 1-4. Just the same as how developers shouldn't be worried about bits-on-the-wire and how switches/routers work.
Thank you, what an amazing explanation and insight!
I love these kinds of videos, keep up the good work and I am excited for the next video😊
Looking forward to next video👏🏻
Awesome as always! Very entertaining advert as well 😅
More of these deep dives videos please.
Loved the ad. Border Gateway Protocol(BGP) would be a nice topic.
The thing that made networking click for me more than anything else was looking at full software implementations like overlay and alternate networks. Coming from Java, the I2P source code went a long way. It might be nice to cover it from this perspective, as it not only recreates the different layers but also actively addresses some common problems as security issues.
beautifully explained, thank you!
Amazing Series! Great explanation, even newbies gon understand it. Keep it up :)
😍😍 Thank you so much for making this video... I've always had confusion about it.
Awesome explanation
Excellent content ! Thank you for this.
I just start watching this video and I already gave a like for 2 reasons.
First and more important it is a LIveOverflow video, so it is guarantee that it would be a super hight content quality
Senconde and funniest, the work this guy did to record himself being a computer and send and receiving message hahahahaah
Great video. Please make such kind of easy understanding video more on networking & (ssh, socket etc) stuffs
Awsome. Great explanation.
That ad at the end is hilarious, I like it 😅
This is a really good video about networking. ❤️
"You can accept blackboxes, but never be satisfied with blackbox"
I liked this point of view
you're really good at teaching
This Video needs to reach to everyone .
crazy video, really good stuff
Excellent video
love the advert at the end ha! great video as always :D
Thank you, very helpful. 💕
The layer explanation using little humans that all have their own task gave "Sendung mit der Maus" Vibes and i love it!
I love this channel.
awesome deep dives, still I can't understand these things very well, continue these deepdivess
Brilliant, thank you so much!
Thx alot! This cleared lots of things for me :D
this is pretty cool, and easy to absorb :)
Very helpful
I always have an analogy in my head: a person sitting in a room without window, only communicate with the rest of world through a small hole. you can only send/receive go chess one by one. Then, how to solve problems like: information integrity, addressing, multiplexing etc? that’s the OSI model. In my opinion this analogy is quite accurate for electronics communication, meaning almost all these devices using wire and electrical signal to talk(Ethernet, TTL, SATA etc.) face to same problem/concept(or wireless connection mostly abstract a wire).
I ❤your explanations!
This is so much better than what my networking teacher told me
damn, that end ad was super cool
Great Job!
realy good job in explaining it thanks 👍
awesome content!
Looking forward to your next video!
I am considering building a "sandbox" WiFi network at home using an old router for RasPicoWs and ESP32s. Would love to hear how to best bridge this sandbox-network to the main WiFi network.
I like liveoverflow because this make me easy to understand
Very great! Thank you!
it clicked! Great work1!
Bro i hope he makes like really indef videos about some of this stuff its all so intresting and he makes it so anyone can understand it
Amazing stuff..
Great Video. Not detailed enough sadly but I still enjoyed it!
Please do more videos about networking :D
Your video is clear as Water 😊😊😊
Thank you very much, you are the blessing we need, just at the right time to save us from indian talk and abstract college teaching, wish you all goods.
nice explanation
Great video sir 👏👏 the hackers touch is super. please pick “sys calls” as topic for next as it is confusing to know how sys calls interacts with application in various operating systems. i vaguely know there is a lot of common things
You can think of it like taking a letter and wrapping it in envelopes, with each envelope containing addressing information. First it gets wrapped in a TCP or UDP envelope, then that gets wrapped in an IP envelope, then THAT gets wrapped in an Ethernet or WiFi envelope, and then that gets passed to your mail courier.
Much better visual representation of what's actually going on imho