Network Protocols – ARP, FTP, SMTP, HTTP, SSL, TLS, HTTPS, DNS, DHCP – Networking Fundamentals – L6

In this video we provide a formal definition for Network “Protocols”. We then briefly describe the functionality of the 8 most common networking protocols on the Internet: DNS, DHCP, HTTP, SSL, TLS, HTTPS, FTP, and SMTP. We follow that with a discussion on the four items which MUST be configured to achieve any sort of Internet connectivity.

This is Lesson 6 of Module 1 of a Networking Fundamentals course. The first module will be released for free on Youtube and will teach anyone the very core of networking: How data moves through the Internet.

=== Networking Fundamentals – Module 1 ===
Lesson 1 – Network Devices
Part 1:
Part 2:

Lesson 2 – OSI Model
Part 1:
Part 2:

Lesson 3 – Everything Hosts to do speak on the Internet
Part 1:
Part 2:

Lesson 4 – Everything Switches do to facilitate communication
Part 1:
Part 2:

Lesson 5 – Everything Routers do to facilitate communication
Part 1:
Part 2:
Part 3:

Lesson 6 – Networking Protocols
– Four items MUST be configured for Internet Connectivity

Lesson 7 – How Data moves through the Internet
– Interview question: What happens when you type “” into a web browser?

If you enjoyed this content, then please tell one other person about this series. At the end of the day, sharing this content is the best way you can thank me and return the favor for this free content. You can get free Internet Points (Karma, Likes, etc) by simply sharing this content across social media communities. =) Thank you.

🖧 Full Networking Fundamentals series (Module 1 – all FREE):

📇 Details about the Full Networking Fundamentals Course:

📜 Studying for your CCNA?

🧮 Want to learn Subnetting?

🔐 Want to learn about SSL, TLS, and Cryptography?

📖 Other Courses:

💬 Discord:

#networking #ccna #protocols #network #osi #switches #routers

00:00 – Intro
00:16 – Protocols – Formal Definition & Example
04:25 – Hosts – Clients and Servers
05:04 – DNS – Domain Name System
07:02 – Four items to configure for Internet Connectivity
09:06 – DHCP – Dynamic Host Configuration Protocol
10:44 – Summary
11:34 – Outro


This Post Has 42 Comments

  1. Eri Mendz

    Love this clear explanation just like the rest of the network playlist. Thank you so much. New subscriber here, i will explore the rest of your channel 🙂

  2. Wow if every teacher can be like you the world would have been a world of genius

  3. R T

    Best protocols explanation ever. Thank you from my heart.

  4. Yuhiaht Yun

    This dude gonna go straight to heaven

  5. Sany Sany

    Thank you for creating such an illustrative content. It helped me to understand the Networking Fundamental protocol. Please create similar content on Kubernetes networking

  6. Id Watch4

    Awesome! Best videos ever created…Thanks so much for all your effort!

  7. kavya johnson

    Thanks a lot. It was a great video, the explanation is very clear and in a way that a student could understand how things really works. I would definitely watch the series of video in this course.

  8. Eris Tyler

    Informative and clearly explained. Would love a full networking fundamentals course!! Subscribed

  9. Not OP

    Cool useful video

  10. Scien Techie

    A most excellent 👌👍 explanation. Great video! It would be a good idea 💡 for a full course. Thanks.

  11. AD

    Sir pls post some videos on practical demonstration of networking hardware devices and the software to configure the internet connection and it's all commands

  12. James Hunt

    that was smooth 😍😍😍😍😍

  13. Hadi Global

    Thanks for sharing this video.
    With https can my internet service provider knows what I am downloading or where I'm browsing on that site?

  14. Ali .m

    You explained these fundametals simply and it was easy to understand (not just to memorize!) . Thank you 🙂

  15. Deepak das

    I never heard this simple and easy way of displaying the subject. Thank you very much for your time and effort you made to make this video. It's really very interesting and knowledgeable.

  16. Livy Marilyn

    Very functional bro to send campaign emails

  17. Electrical Stuff

    Amazingly digestible content. Would pay for the full course.

  18. Harold Hale

    Thank you for this. Networking is new to me but I love it! Your video really helps a beginner like me. Like Linux…it's free too! Thank you for your service.👏🏾✌🏾

  19. Miguel Bindang

    This is the wizard I have been looking for. Blessed be you and your whole family man.

  20. Rob Pickles

    WOW! Thank you so much! I have watched and read many different helpful source materials for network protocols but till now I have never come across anything that verbally and visually explains how the protocols relate, as well as refresh my memory on their purpose, etc. It's like I've had a cloud in my mind and this video has removed that cloud! Everyone involved in making this video, thank you so much! I've hit that subscribe button and I'm keeping an eye on my notifications! Awesome work!

  21. cryzz0n

    This was so so well explained and easy to digest! Thank you for putting this together

  22. Fairytale

    Just amazing… you just described all the thing by 12 minutes!!! Believe me I have spend 12 more month to take a clear concepts about all those Things… Salute to you sir

  23. Rolletti21

    THANK YOU!!!!!! You did what my teacher did not. 😮🤗☺️👋

  24. Standupwoman

    Thanks for the video, very informative 👌

  25. John Steve

    I couldn't comment with the other account, I'm sending the question again. Can you answer me a question regarding the DHCP protocol? There is a local store that allows clients to store DHCP information on their own hard drives which allows a client to be restarted or shut down and will use the previously leased address. When the client has a DHCP-assigned IP address and it restarts, the client will request the IP address in a "special DHCP request" packet instead of a DHCP Discovery message. And it seems that this "special DHCP request" is sent as a Broadcast in this "system restart" state. I want to know in the case if the client is turned off and after a few minutes on again it will do the whole DHCP Discovery process again, or the client will it also just send a "DHCP request special" packet instead of the "DHCP Discovery" packet, the same way a rebooted client does?

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