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AWS Intermediate/Practical Guide for Non-Majors (Security & Availability)

I've created an 'AWS Intermediate/Practical' course that's easily digestible for non-majors and immediately applicable in real-world situations!

(5.0) 38 reviews

582 learners

  • jscode
aws
AWS
devops
infrastructure
vpc
Architecture

Reviews from Early Learners

What you will learn!

  • Essential VPC Network Configuration for Service Operation

  • Security with Private Subnets

  • Availability Zone Server Failure Prevention

  • Security Group Setup Using the Principle of Least Privilege

  • Common AWS Infrastructure Architecture

  • VPC, Subnet, Internet Gateway, NAT Gateway, Routing Table


🥹 I sincerely thank all the students who have supported me 🥹

It's already been a year since I created the AWS beginner course. Before first opening the AWS course, I had many worries like whether I explained things too difficultly, and what if the students weren't satisfied.

Fortunately, many people took the AWS beginner course, and I remember breathing a sigh of relief after hearing in the reviews that they were able to easily understand AWS and apply it in real-world situations.

And thanks to the students who encouraged me to keep creating courses, I gained the confidence to create an AWS intermediate course as well.

In this intermediate AWS course, we'll teach you how to improve network security using VPC and how to build infrastructure that increases availability and reduces server failure probability.

In the field, security is important, so VPC is essentially built to configure AWS infrastructure. The fact that VPC is being built and used in the field means that you also need to understand the concept of VPC to be more advantageous for employment, and it also means you can quickly adapt to work when you get hired by a company.

In this lecture, rather than just showing you how to build a VPC and calling it done, I'll help you understand each concept needed to build a VPC so you can apply it to your own project situations. And using those concepts, we'll build a VPC the way it's done in real-world professional environments.

Through this course, I sincerely hope that you will gain a deeper understanding and ability to work with AWS, becoming a developer who is recognized in the industry. I'll see you in the course.



✨ 4 Key Points I Focused on While Creating the Course

The field of development requires prioritizing the learning of knowledge that can be applied in the workplace, that is, technologies frequently used in practice. Therefore, I structured the course using only concepts frequently used in the field.

If you don't know how to apply what you've learned in real-world situations after completing the course, then it's a poorly designed course. I've structured this course so that you can immediately apply the concepts you've learned in real-world scenarios after completing it.

I thought that if you can't apply what you've learned in real situations even after completing the entire course, then it's a poorly designed course. I tried to structure it as a practical course that can be immediately applied to real work, rather than an academic approach that focuses on deep theoretical learning.

I didn't create the course by simply showing usage or implementation methods without any explanation. I will provide theoretical explanations so you can build with an understanding of the principles and concepts. This way, you'll be able to apply them according to your project situations.

👍 Great for these types of people!

Those who are having difficulty with advanced AWS learning
by watching YouTube or blogs

Non-CS major background,
slow to understand
difficult concepts and terminology

Those who want to directly
introduce and utilize AWS
in their actual work

🙊 What happens after you finish listening to this entire lecture?

You will be able to use AWS VPC to configure a secure network. You will also learn methods to increase availability and reduce the probability of server failures.

🍡 Tasting

'What is an Internet Gateway?' lesson

'[Hands-on] Modifying Security Groups for EC2 (Bastion Host)' lesson

'[Hands-on] Creating an Internet Gateway' lesson

Reference Notes

If you encounter any parts that are difficult to understand while studying, please feel free to ask questions right away using the Q&A board or 1:1 open chat room😊

🚨 Make sure to check what kind of person is providing the education!

If you meet the wrong doctor, you might face death because your illness can't be cured at that moment. But death ends with the pain of that moment. However, if you meet the wrong teacher and receive poor education, you suffer throughout your entire life.

Due to poor education, you may end up at an unwanted company, receive a smaller salary than expected, and suffer for the rest of your life as a result. Not only that, but the poor education you received can be passed down to your children as well.

Education can truly change a person's life in a positive way, but on the other hand, it can also completely ruin a person's life. That's why I believe education carries such heavy responsibility.

Therefore, please check who is providing the education, what kind of person they are, and what path they have walked, and make a careful judgment.

👋 Hello!
I'm finally introducing myself now ( ⸝⸝•ᴗ•⸝⸝ )੭⁾⁾

Hello!

I started studying development as a non-major. Before I knew it, I've already become a 6-year developer! Recently, I worked as a developer while serving as CTO at two companies. Whenever I had time, I've been doing coding lectures, company development consulting, and giving talks.

The number of students I've taught has now exceeded 24,000 (as of July 2025)! Every time I teach various students, I always feel the same way - I can't forget the sense of fulfillment from education, so I plan to continue providing education consistently on Inflearn.
(* Among students, there have been successful candidates at Kakao Pay, Yanolja, and Woowa Brothers)

Just as I received a lot of help during difficult and challenging times, I wanted to become someone who could help many other people as well. And I felt most proud and happy when the value I created through development had a positive impact on others.

For these reasons, I hope that by giving and sharing what I have worked hard to achieve, those people can live a slightly better life.

Thank you!

🏆 Course Best Review

** This is a review written for the previously created .


🚌 Feeling overwhelmed about what order to take the courses?

'[2025] Essential Curriculum for Getting a Job as a Backend Developer (IT Service Companies)' for reference!



🐶 Get lecture discounts with roadmaps

➡ Deploying Services with AWS · Nginx · CI/CD (https://inf.run/XXuYG)

➡ [AWS Beginner~Intermediate] Collection of practical AWS courses you can apply immediately in real-world scenarios(https://inf.run/kLjW9)

Recommended for
these people

Who is this course right for?

  • Those preparing for a job or career change as a backend developer at an IT service company.

  • Developer who needs to design infrastructure considering security and availability

  • A person who needs to directly manage services on AWS

  • Someone preparing for a job as a Devops engineer

Need to know before starting?

  • Basic AWS Knowledge (EC2, RDS, ELB)

Hello
This is

28,315

Learners

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Reviews

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Answers

4.9

Rating

16

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[Sites]
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[Career]
現) JSCODE - 대표 멘토, CEO
前) (주)트라이포드랩 - CTO
前) (주)온리원유니버스 - CTO
前) 달리(DALY) - CTO
前) 팀메이트(Teammate) - CEO

 

[Books]

『Do it! JSCODE의 AWS 입문』, 이지스퍼블리싱 (2025.05)

 

[ETC]
- 기업 대상 개발 컨설팅 및 코딩 교육 활동

Curriculum

All

58 lectures ∙ (4hr 4min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

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38 reviews

5.0

38 reviews

  • 최영철님의 프로필 이미지
    최영철

    Reviews 19

    Average Rating 5.0

    5

    100% enrolled

    jscode 로드맵 모두 완주 후 수강평 달려 왔습니다 ~~ 처음 AWS 입문 강의와 CI/CD강의를 접하고 너무 충격적으로 이해가 잘되고 적용과 체득도 너무 잘되서 놀랐네요 ㅎㅎ 그렇게 한달사이 모든 강의를 수강하고 매번 감탄하며 공부하다 이제와서 수강평을 남기게 되었어요 !! 우선 전 준(?)전공자로서 전반적인 이해 없이 그저 프로젝트 활동을 하며 주먹구구 식으로 특정 개념을 공부하고 블로그나 검색을 통해 급하게 개발하고 디버깅을 하느라 뭔가 불안했었어요. 하지만 재성님의 강의를 들으니 제 공부법은 효율적이지 못했다는걸 체감어요 ㅎㅎ 정말 제 개발 인생에서의 은인이라 생각됩니다 과하지도 부족하지도 않고 강의 주제와 목표에 맞게 정말 알찬 강의여서 듣는 내내 너무 좋았습니다. 시간을 아껴서 좋았고, 이해가 잘되었고 바로 적용할수 있어 좋았으며, 불안하지 않아 좋았습니다. 또한 모든 강의에 얼마나 많은 시간과 열정을 쏟으셨는지 이렇게 컴팩트하면서 디테일한 요소들 까지 잘 짚어주시는지 늘 감탄하며 수강했네요 !! 여러 강의를 들어보았지만 직장생활을 겸하시며 강의 하시는 타 강사분들과 달리, 교육 단 하나에 열정을 쏟아부은 해당 강의는 정말 만족도가 너무 너무너무 좋았습니다 :) 늘 건강하시길 바라며 추후 강의도 무리없이 잘 제작해주시면 감사하겠습니다 🙇🏻‍♂️

    • cypoba2님의 프로필 이미지
      cypoba2

      Reviews 3

      Average Rating 4.3

      5

      60% enrolled

      전공자이지만 용어나 개념들 명확하게 이해를 못했는데 쉽게 설명해 주셔서 이해가 쏙쏙됩니다. 이론을 배우고 실습을 하면서 명확하게 이해할 수 있게 되었어요. 완전 추천 강의!!

      • Ju-Ho Yoon님의 프로필 이미지
        Ju-Ho Yoon

        Reviews 14

        Average Rating 4.9

        5

        31% enrolled

        처음 AWS를 접하거나 서버를 운영해 보시는 분들이 접근하시기에 좋은 강의 인것 같습니다!!

        • smathj님의 프로필 이미지
          smathj

          Reviews 34

          Average Rating 5.0

          5

          100% enrolled

          올해 추석에 재성 강사님과 함께 쭈욱 한것 같은데 이 AWS 강좌를 통해서 실제 네트워크에서는 라우터 스위치로 config 쳐서 작성하던거를 웹으로 쉽게할 수 있는 "아마존 웹 서비스"를 느꼈습니다... 친절한 설명과 여러번의 반복이 너무 좋았습니다. 다음 재성님 강의도 이어서 아직 연휴기간남았으니 보겠습니다 !

          • 최진호님의 프로필 이미지
            최진호

            Reviews 1

            Average Rating 5.0

            5

            31% enrolled

            $59.40

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