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Memorize and finish the core network theory - application

This lecture guides those who have learned the basic course of network core theory by memorizing it to understand theories in more depth. It covers more in-depth theories such as NAT technology, the operating principle of Internet routers, load distribution system principles, and VPN technology principles. The goal of this lecture is also to finish it by memorizing it! You can do it!

(4.9) 209 reviews

4,337 learners

  • nullnull8537
Network
kakao-tech

Reviews from Early Learners

What you will learn!

  • Inline, Out of path structure

  • Proxy structure

  • How Internet Router Works NAT

  • Load balancing technology

  • VPN System Structure

Network, memorize it easily and quickly!
3-Hour In-Depth Network Core Theory 👨‍🎓

network theory,
I have to learn though... 😥

Why was your network study difficult ?

Networks, both in terms and concepts, seem too complex and abstract .

I struggled to learn what the OSI 7-layer model was all about, but it just took up so much time that I gave up.

VPN, router, network security devices ... Can't you quickly understand these concepts?

👉 If so, you need to change the way you study !

Networks, deeper and more specific theories are no problem either! 👨‍🎓

This course continues from the previous "Memorize and Master Network Theory - Basics." Now that you've quickly skimmed through the basics of network theory, it's time to delve deeper! This advanced course covers topics such as NAT, the operating principles of routers, load balancing systems, VPNs, and proxies.

Network devices are implemented using one of three major architectures, or a combination of them. Therefore, to gain a deeper understanding of network devices, it's essential to understand not only their basic architecture but also the NAT and VPN technologies used in Internet routers. A deeper understanding of networking will significantly enhance your understanding of the operating principles and structure of computer networking.

Of course, the goal of this lecture is to complete it by memorizing it. You can do it! I wish you success in your networking studies.

We've compiled the key information you need to know and delivered it quickly.
We also provide 46 pages of visual aids used in the lecture.

The following content
I'm learning 📚

Three network device architectures

Learn the features and principles of Inline, Out of path, and Proxy structures.

How Internet Routers Work

Learn about NAT (Netword Address Translation) technology applied to Internet routers.

How a load balancing system works

Learn how to distribute load using L4 switches, GSLB, and fault-tolerant systems.

VPN and network security solutions

Learn how IPSec VPN systems work and introduce various network security systems.

✅ Please check before taking the class
( This lecture is a continuation of 'Network Core Theory - Basics' .)


Created this course
Knowledge sharer is 👨‍💻

This is Ho-seong Choi , the 'Leisurely Developer' of Leisurely Developer TV.

  • Developer of Korea's first PC firewall (that everyone hates)
  • A 30-year C/C++ developer who has studied the C language since 1992.
  • A man with experience in carrying out numerous national projects and over 15 years of development lecture experience !
  • Author of the popular C language introductory book , "C Programming: A Simple Beginner's Guide to Reading"

I run the "Lounge Developer TV" YouTube channel, which has over 30,000 subscribers. (Go to)

We'll help you build a solid foundation for networking. 😊

People say studying networks is important, right? However, when it comes to actually studying networks, it seems like people often get bogged down by the conceptual aspects, preventing them from delving into deeper theories . Over the years, while teaching various lectures on my YouTube channel, I've met many people who have struggled to understand the networking world.

Don't try to understand, just memorize it and get through it. The goal of this lecture is to help you naturally understand networks through memorization. By building a foundational understanding of networks, which can be difficult to grasp even from textbooks, I hope you'll be able to more easily grasp the meaning of TCP/IP networking books and deeper studies in the future. I'll quickly and efficiently share what I've learned through years of experience and study.

Recommended for
these people

Who is this course right for?

  • Network Core Theory to Memorize and Finish - Students who have completed the basic course and wish to learn more

  • For those who want to understand network technologies in more depth, such as NAT and VPN.

Need to know before starting?

  • Memorize and finish the core network theory - Basics

Hello
This is

38,147

Learners

2,225

Reviews

1,103

Answers

4.9

Rating

25

Courses

널널한 개발자 TV 채널 주인장이자
30년 넘게 IT기술의 바다를 항해하고 있는 개발자 입니다.  반갑습니다. ^^  

Curriculum

All

23 lectures ∙ (3hr 59min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

209 reviews

4.9

209 reviews

  • yongseokdev님의 프로필 이미지
    yongseokdev

    Reviews 5

    Average Rating 5.0

    5

    77% enrolled

    It's a fun class with the judge. I started with memorization and it helped me a lot in understanding the network. Thank you!

    • nullnull8537
      Instructor

      Thank you for your good evaluation. You just have to memorize the theory, and I will teach you the process. I am glad that the lecture was helpful. ^^

  • cjh4632님의 프로필 이미지
    cjh4632

    Reviews 6

    Average Rating 5.0

    5

    100% enrolled

    Thanks to you, I was able to understand a little bit about the big trends in network concepts. I like you more because you look like my favorite action star, Jackie Chan.

    • nullnull8537
      Instructor

      Thank you for the good reviews and feedback. Oh! And sometimes people say I look like Jensen Huang when I wear glasses. It's embarrassing... :)

  • sunny4136310님의 프로필 이미지
    sunny4136310

    Reviews 6

    Average Rating 5.0

    5

    100% enrolled

    I was having a hard time studying because I couldn't understand the network part even after searching for materials and it was hard to find good lectures, but after listening to the lecture of the developer, I started to understand it. Thank you for the great lecture!

    • nullnull8537
      Instructor

      Wow~~! I'm so glad you're starting to understand. This must be a happy feedback for the instructor. Thank you. :)

  • technocratist666님의 프로필 이미지
    technocratist666

    Reviews 14

    Average Rating 5.0

    5

    100% enrolled

    From tools like proxy and VPN that are frequently encountered in practice to the NAT operation principle of the router that is actually the most used and useful, although we do not usually think much about it, and if we need to implement such a thing at the application level, we were able to get hints on how to do it, and there were many useful parts in many ways. We were also able to briefly look at the overall security solutions of the infrastructure that commercial services run on. This lecture shows the overall forest of which areas we should focus on and supplement in the future. Those who want to work in the IT field where they need to have some network knowledge, such as basic infrastructure, server side, or communication application development that requires socket communication, to smoothly proceed with work Studying theories for qualifications is important, but if you gradually acquire the knowledge necessary for this kind of practice when you have time, it will be very helpful in many ways. Thank you for making such a great lecture. Highly recommended

    • nullnull8537
      Instructor

      Thank you for your great review and very specific feedback. I am glad that you got some hints from the lecture. I am also glad that you sympathize with the educational goals of this lecture. :)

  • geohwakim2456님의 프로필 이미지
    geohwakim2456

    Reviews 3

    Average Rating 4.3

    5

    100% enrolled

    I had a lot of questions, but most of them were resolved.

    • nullnull8537
      Instructor

      Thank you for your first class review. Fortunately, I feel a little better because you gave me a positive review and also gave me some nice feedback that my questions were resolved. If you have any other questions, please let me know at any time. I will reply as soon as possible. Thank you.

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