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

I've created an 'AWS Intermediate/Practical' course that even non-majors can easily understand and apply directly in real-world situations!

(5.0) 48 reviews

672 learners

Level Basic

Course period Unlimited

  • jscode
  • JSCODE
aws
aws
AWS
AWS
devops
devops
infrastructure
infrastructure
vpc
vpc
Architecture
Architecture
aws
aws
AWS
AWS
devops
devops
infrastructure
infrastructure
vpc
vpc
Architecture
Architecture

Reviews from Early Learners

Reviews from Early Learners

5.0

5.0

ctmdgus0427

100% enrolled

I completed all the intermediate courses following the introductory courses. I now have a clear understanding of the roles and connection relationships of AWS network components. Thank you.

5.0

cypoba2

60% enrolled

I'm a major in this field, but I didn't have a clear understanding of the terminology and concepts. However, your easy explanations help me understand everything perfectly. By learning the theory and doing the practical exercises, I was able to gain a clear understanding. Totally recommend this course!!

5.0

smathj

100% enrolled

This Chuseok, I feel like I've been continuously learning with instructor Jaeseong, and through this AWS course, I experienced "Amazon Web Services" which allows you to easily do on the web what you used to do by typing config commands on routers and switches in actual networks... The kind explanations and multiple repetitions were so good. I'll continue with Jaeseong's next lecture since there's still some holiday time left!

What you will gain after the course

  • How to configure VPC networks essential for service operations

  • Methods to Enhance Security Using Private Subnets

  • How to Prevent Server Failures Using Availability Zones

  • How to Configure Security Groups Using the Principle of Least Privilege

  • AWS infrastructure architecture frequently used in production environments

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


🥹 Thank you so much to all the students who supported me 🥹

It's already been a year since I created the AWS beginner course. Before first opening the AWS course, I worried a lot about things like whether I had 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 this AWS intermediate course as well.

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

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 have an advantage in job hunting, and it also means you can quickly adapt to work when you get hired at a company.

In this course, rather than just showing you how to build a VPC and calling it a day, I'll help you understand each and every concept needed to build a VPC so that you can apply it according to your project situation. And using those concepts, we'll build a VPC the way it's done in actual work environments.

Through this course, I sincerely hope you'll gain a deeper understanding of AWS and become a developer who is recognized in the field. See you in the course.



✨ 4 Points I Focused on While Creating This Course

In the field of development, it's important to prioritize learning knowledge that can be applied in the workplace, that is, technologies frequently used in practice. Therefore, I structured the course using only concepts that are frequently used in the field.

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

I thought it would be a poorly made course if you couldn't apply it in practice even after finishing the entire course. I tried to structure it as a practical course that can be immediately applied to real work, rather than an academic approach of deeply studying theory.

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

👍 This course is great for:

Those who are having difficulty with advanced AWS learning after watching YouTube videos or reading blogs

Those from non-technical backgrounds
who find it difficult to understand
complex concepts and terminology

Those who want to directly
implement and utilize
AWS in their work

🙊 What will you gain after completing this course?

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

🍡 Preview

'What is an Internet Gateway?' lesson excerpt

'[Hands-on] Modifying the Security Group of EC2 (Bastion Host)' lesson

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

Reference Information

If you come across any parts you don't 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 who is providing the education!

If you meet the wrong doctor, you could die from not being able to cure your illness at that moment. However, death ends with that moment of suffering. But if you meet the wrong teacher and receive the wrong education, you will suffer throughout your entire life.

Due to wrong education, you may end up at an unwanted company, receive a smaller salary than expected, and suffer throughout your entire life as a result. Not only that, but the wrong education you received gets passed down to your children as well.

I believe that 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 how much I think education carries a heavy responsibility.

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

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

Hello!

I started studying development as a non-major. I've already become a 6-year developer! Recently, I worked as a developer while serving as CTO at 2 companies. Whenever I have time, I've been doing coding lectures, company development consulting, and speaking engagements.

The number of students I've taught has now surpassed 24,000 (as of July 2025)! Every time I teach my students, I feel this sense of fulfillment from education that I just can't forget, so I plan to continue teaching consistently on Inflearn.
(* Students have been accepted to Kakao Pay, Yanolja, and Woowa Brothers)

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

For these reasons, I hope that by sharing and giving what I've 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 course .


🚌 Not sure what order to take the courses in?

'[2026] Essential Curriculum for Getting Hired as a Backend Developer (IT Service Companies)' for reference!



🐶 Get course discounts with the roadmap

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

➡ [AWS Beginner to Intermediate] Collection of AWS courses you can apply immediately in practice(https://inf.run/kLjW9)

➡ AWS Beginner~Intermediate + AWS Solutions Architect Associate
(https://inf.run/woqg1)

Recommended for
these people

Who is this course right for?

  • Someone preparing for employment/job change as a backend developer at an IT service company

  • Developers who need to design infrastructure considering security and availability

  • People who need to directly operate services on AWS

  • Someone preparing for employment as a DevOps engineer

Need to know before starting?

  • Basic AWS knowledge (EC2, RDS, ELB)

Hello
This is

30,285

Learners

2,216

Reviews

744

Answers

4.9

Rating

17

Courses

[Sites] Shortcut to YouTube, Shortcut to LinkedIn [Career] Current) JSCODE - Lead Mentor, CEO / Former) Tripod Lab Co., Ltd. - CTO / Former) Only One Universe Co., Ltd. - CTO / Former) DALY - CTO / Former) Teammate

[Sites]
Go to Youtube
Go to LinkedIn

[Career] Current) JSCODE - Lead Mentor, CEO Former) Tripod Lab Co., Ltd. - CTO Former) Only One Universe Co., Ltd. - CTO Former) DALY - CTO Former) Teammate - CEO [Books] 『Do it! JSCODE's AWS

[Career]
Present) JSCODE - Lead Mentor, CEO
Former) Tripod Lab Co., Ltd. - CTO
Former) Only One Universe Co., Ltd. - CTO
Former) DALY - CTO
Former) Teammate - CEO

[Books]

『Do it! JSCODE's Introduction to AWS』, EasysPublishing (2025.05)

[ETC]
- Corporate development consulting and coding education activities

Curriculum

All

58 lectures ∙ (4hr 4min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

48 reviews

5.0

48 reviews

  • acyc09092705님의 프로필 이미지
    acyc09092705

    Reviews 20

    Average Rating 5.0

    5

    100% enrolled

    I've come to leave a review after completing the entire jscode roadmap ~~ I was first shocked at how well I understood the AWS introductory course and CI/CD course, and how well I could apply and absorb the knowledge 😊😊 After taking all the courses within a month and studying with amazement each time, I'm finally leaving this review!! As a quasi-major, I had been anxiously studying specific concepts in a haphazard way through project activities without overall understanding, and hastily developing and debugging through blogs and searches without a solid foundation. But after taking Jaesung's courses, I realized that my study method was not efficient 😊😊 I truly consider you a benefactor in my development career The courses were neither excessive nor insufficient, really substantial and perfectly aligned with the course topics and goals, so I enjoyed every moment of listening. I loved that it saved time, was easy to understand, immediately applicable, and didn't make me anxious. Also, I could see how much time and passion you put into every course, always admiring how you covered compact yet detailed elements so well!! I've taken various courses, but unlike other instructors who teach while working full-time jobs, this course where you poured your passion solely into education had incredibly high satisfaction :) I hope you stay healthy always, and I would be grateful if you continue to produce future courses without overexertion 🙇🏻‍♂️

    • gdrffg님의 프로필 이미지
      gdrffg

      Reviews 3

      Average Rating 3.7

      5

      83% enrolled

      GOAT BTS Son Heung-min Bong Joon-ho JSCODE

      • bizoneig9265님의 프로필 이미지
        bizoneig9265

        Reviews 6

        Average Rating 5.0

        5

        31% enrolled

        • kduoh님의 프로필 이미지
          kduoh

          Reviews 36

          Average Rating 5.0

          5

          91% enrolled

          • jinee05059986님의 프로필 이미지
            jinee05059986

            Reviews 29

            Average Rating 4.8

            5

            60% enrolled

            $59.40

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