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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) 212 reviews

4,397 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

38,939

Learners

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Reviews

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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: 
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Reviews

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212 reviews

4.9

212 reviews

  • Yongseok님의 프로필 이미지
    Yongseok

    Reviews 5

    Average Rating 5.0

    5

    77% enrolled

    판서와 함께하는 즐거운 수업입니다. 암기로 시작해서 네트워크를 이해하는데 큰 도움 받고 있습니다. 감사합니다!

    • 널널한 개발자
      Instructor

      좋은 평가 감사합니다. 이론은 외우시면 되고 그 과정은 제가 판서해드리는 컨셉이라 하겠습니다. 강의가 도움이 된 것 같아 기쁩니다. ^^

  • cjh님의 프로필 이미지
    cjh

    Reviews 6

    Average Rating 5.0

    5

    100% enrolled

    선생님 덕분에 네트워크 개념의 큰 흐름에 대해 조금이나마 이해할 수 있게 되었습니다. 제가 좋아했던 액션 배우 성룡을 닮으셔서 더욱 정이 갑니다.

    • 좋은 평가와 피드백 고맙습니다. 아~! 그리고 안경을 쓰면 가끔 젠슨황 닮았다는 분들도 계십니다. 민망합니다만... :)

  • sunny413님의 프로필 이미지
    sunny413

    Reviews 6

    Average Rating 5.0

    5

    100% enrolled

    네트워크 부분이 자료를 검색해봐도 이해가 가지 않고, 괜찮은 강의도 찾기 어려워서 공부하는데 어려움을 겪고 있었는데, 널널한 개발자님 강의 듣고 나서 이해가 되기 시작했습니다. 좋은 강의 감사합니다!

    • 와우~~! 이해가 되기 시작했다니 정말 다행입니다. 강사에겐 행복한 피드백이 아닐 수 없지요. 고맙습니다. :)

  • technocratist님의 프로필 이미지
    technocratist

    Reviews 14

    Average Rating 5.0

    5

    100% enrolled

    실무에서 자주 접하는 프록시와 VPN 같은 도구에서부터 평소에 그다지 크게 생각해보진 않았지만 실제로 가장 많이, 그리고 유용하게 사용중인 공유기의 NAT 작동 원리까지, 그리고 만약에 어플리케이션 단에서 그러한 구현을 해야 한다면 어떻게 해야 할지에 대한 힌트를 얻어갈 수 있었고 여러모로 유용한 부분들이 많았습니다. 상용 서비스가 돌아가는 인프라의 전체적인 보안 솔루션들에 대해서도 간략히 살펴볼 수 있었습니다. 앞으로 어느 분야를 더 중점적으로 공부하고 보완해야할지 전체적인 숲을 보여주는 강의입니다. 기본적인 인프라나 서버 쪽 혹은 소켓 통신이 필요한 통신용 어플리케이션 개발 등 네트워크 지식이 어느정도 있어야 업무 진행이 원활한 IT 분야에서 일 하고 싶은 분들 자격증 이론 공부도 중요하지만 이런 실무에서 필요한 지식들 평소에 짬날때 차곡차곡 갖춰서 투입되시면 여러모로 도움이 많이 될거같습니다. 좋은 강의 만들어주셔서 감사합니다. 강추

    • 좋은 평가와 매우 구체적인 피드백 고맙습니다. 강의를 통해 이런 저런 힌트도 얻으셨다니 정말 다행입니다. 더욱이 이 강의의 교육목표에 대해 공감해주셔서 기쁩니다. :)

  • 김거화님의 프로필 이미지
    김거화

    Reviews 3

    Average Rating 4.3

    5

    100% enrolled

    궁금한게 많았는데 많이 해결되었어요

    • 첫 번째 수강평 감사합니다. 다행히도 좋은 평가와 더불어 궁금한 점이 해결되셨다는 반가운 피드백도 주셔서 마음이 조금 가벼워 졌습니다. 기타 질문이 있다면 언제든 알려주시기 바랍니다. 빠른 시일 내에 회신하겠습니다. 감사합니다.

$51.70

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