Introduction to TCP/IP and Sockets, part 1: Introducing the protocols and API

This is a basic introduction to the Internet protocols and how to use them in programs using sockets.

This is the first of two introduction videos on the Internet Protocol and its family of associated protocols (UDP, TCP, etc.) as well as Sockets, a pseudo-standard interface made for programmers to write programs which use these protocols.

Index for skipping to the sections you care about:

00:00 - Introduction
00:33 - Internet Protocol
04:05 - IP fragmentation
05:04 - IP headers
09:14 - IP is "best effort" delivery
10:28 - User Datagram Protocol (UDP)
12:08 - Transmission Control Protocol (TCP)
14:03 - TCP connection states
18:21 - TCP headers
22:08 - Sockets API
23:20 - Connection-oriented socket functions
27:30 - Datagram-oriented socket functions
28:35 - Socket addresses (sockaddr)
29:34 - Socket options (sockopt)
31:21 - Blocking vs. Non-Blocking (fcntl)

[trenholmelodge]

Just amazing. How come he is so clear and easy to understand..Others should follow his technique.

[AnantaAkash.Podder]

By far the BEST Explanation about SOCKET... Everyone is just saying Socket is just Ip address+port... But it is very Ambiguous... You just Explained it very well... Socket is nothing but An API... Through which my Web Application Code talks to Kernel & thus tells kernel to do some stuffs with all the Protocols...


Thank you very Much Sir...❤️❤️❤️

[tabeebrahman]

this video was amazing. the explanations are clear and has given me the most perspective when it comes to the socket programming. most of the other videos out there assume the viewer has much more knowledge then what your video does, its almost like psuedo code for socket protocols, super understandable and fairly comprehensive.

[NormalHuman]

this is the best explanation of computer networks that i could find on youtube, thank you for your work

[ali]

As a game developer concerned mostly with cpp. this is a fantastic video and I am very glad I found your channel.

I just want to say special thanks for the time you put into those videos, the production quality, slides, and animations, I know they take way more time than the recording itself, so allow me again to say thanks.

[jahoopyjaheepu]

Best networking video on Youtube. Thank you for creating this series.

[devpriysahu]

Really great, Knowing and teaching are 2 difficult art and you mastered both.

[hfe]

This video almost summarize the details I read in some books into clear and details video. Thank u

[rodrigocastilla]

By ... the best explanation I have ever found on YouTube. Thanks, congratulations and reapsect 🤜🤛

[mikemcgrath]

This was a legendarily well articulated explanation. Thank you for donating your time to make this.

[idamjelde]

This is good! And I like that you have the sections with titles, so that it is easier to jump back and forth in the video to find what you want. Great work!

[goldomcsas]

Amazing, video. Thanks. You are a very concise and clear teacher. You are very good at not bogging down the technical info with too much technical grammar; congrats!

[harryjohnsonperu]

Fantastically explained. Its been so long since i have learned all this in University. This was a nice refresher. Thank you

[shubhankaringale]

I never thought it was, that easy to understand. Thanks a lot.

[reverse_shell]

Rhymu, absolutely loved the video! The diagrams aren't so scary once you've explained them. I am heading to the second video now! :D

[etha]

Was watching your videos on learning Rust when I saw this introduction.
Extremely well presented!

[RxRip]

Thank you for providing this as I am trying to learn and create my own web server from scratch. I wish YouTube algorithm will pick up your channel more as you provide quality content every time. Just subscribed too.

[cynthiali]

Thanks for making this so easy to understand! I've been looking for videos to help me with work in this area for the past couple of days and this is by far the best one. :)

[tourdesource]

This video has helped me enormously. Thank you so much.

[oshinwane]

very well explained although i suggest watching other videos too since this one completes the journey !