외워서 끝내는 네트워크 핵심이론 - 기초

This is a lecture for all non-major beginners who want to become computer science majors by memorizing broadly and shallowly. You can quickly learn what you can learn in essential computer science major subjects such as computer architecture and operating systems. Above all, you can finish it by memorizing it!

Are you lost while learning web development? I'll help you find your own way. Even if you're not from a computer science background, you can understand how web service architecture works through a short 1-hour lecture.

This is a C language programming course for those who want to become professional developers rather than hobbyists. I recommend it to those who want to learn by writing and reading and go down a sweet path!

We will help you memorize and finish the encryption technology responsible for the security of the Internet very easily. You can understand the structure and principles of various technologies such as SSL certificates, PKI technology, digital signatures, and public authentication systems.

It covers just two things properly: object-oriented programming and the JVM! Plus, it throws in linked-list-based linear data structures.

Secrets to Escaping Beginner Status Revealed! We'll properly teach you about Java multithreaded programming and synchronization techniques!

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!

We enable you to fundamentally understand and resolve issues where Hangeul appears broken on web pages or in databases, or files contain unknown characters.

This course is for those who want to develop packet analysis programs like Wireshark and various network solutions using the Npcap library.

Based on an understanding of Reflection and Annotations, it helps you clearly understand how the Spring framework operates!

For those aspiring to be Java-based Spring backend developers, to easily secure a job, we learn Java properly! Rigorously!

Starting with java.io, you can learn how to develop high-performance input/output systems based on NIO and NIO.2. Most importantly, the moment you master file I/O, we'll enable you to master high-performance server development as a bonus!

In this lecture, you will learn application-level protocol design techniques and how to develop a high-performance server based on IOCP!

If you have studied the C language thoroughly and studied linear data structures, it is now time to experience the world of object-oriented programming with C++!

This course covers topics for those who have completed basic studies of the C language, such as compiler theory, stack frame structure, multi-threading, virtual memory structure, security vulnerabilities, and secure coding. It is highly recommended for those who wish to become experts in the C/C++ field, or those who majored in CS or have similar skills!

I'll show you how Java backend developers using IntelliJ can maximize productivity with Claude Code. I'll especially help those using Windows environments completely solve vibe coding environment issues.

Anyone who is a C/C++ developer can get started. You can quickly learn MFC Windows programming by selecting only the core. We also provide a 1200-page textbook.

This is a course provided to those who have completed the course 'Learn broadly and superficially to become a computer science major' so that they can study the operating system in more depth.

You will acquire the skills to develop a security system by learning how to intercept the process in which a specific application calls various API functions. ※Absolutely no abuse!!!

A must-take course for anyone thinking of becoming a Windows programmer! Have you studied C/C+, data structures, and operating system theory? If so, studying system programming is the answer now. Now it's time for practice!

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!

Learning Network Basics through Stories, You Can't Learn Network Basics Easier Than This. It's a really easy network basics lecture. And if you take all the lectures, you'll have a basic understanding of networks!

This course will help you understand the value of IoT and how it changes our lives and society. You will learn the basics of IoT device programming, IoT device connection technology, big data analysis, and automation. You will understand digital transformation and its impact on businesses and society.

This course is for those who want to develop packet analysis programs like Wireshark and various network solutions using the Npcap library.

How does the Internet work, and how do browsers fetch web pages? A core CS (computer-science) lecture, organizing network concepts along the OSI 7-layer model, to enable self-explanation of this question. Structured for intuitive understanding through diagrams and flow-centric explanations, and it organizes concepts frequently appearing in technical interviews—such as Transport Layer (TCP/UDP), IP Address, NAT, HTTPS—by linking them to actual questions.

Have you ever wondered how real attackers carry out cyberattacks? BHPT is a comprehensive, hands-on course that uses on-demand labs to simulate penetration testing from an attacker's perspective on specific hosts, teaching methodologies for discovering, attacking, reporting, and responding to vulnerabilities.

⚓Kubernetes (Docker Desktop, Nginx, Minio, Longhorn) 🙇‍♀️Still hesitating? 🙋‍♂️Just trust me and follow! I will make your skills ⭐another level.

This is a course where you create a mini RPG 2D game to learn 2D development techniques, and then learn the process of converting the completed game into a network game by transitioning it to Netcode for GameObject. It covers various essential tilemap functions for 2D games, and is designed to naturally help you learn clean code writing techniques that adhere to SOLID principles. Additionally, this is a lecture that builds the foundation for network games using the updated Netcode API in the latest Unity 6 version.

Learn about the network multiplayer framework, also known as the other Unreal Engine. Learn the key concepts, inner workings, and optimization techniques you need to know when creating a network multiplayer game, then create a hack & slash type PvP battle game.

Learn about networks easily, quickly, and engagingly with pictures and videos!

Creating a simple Gomoku game using Unity and a C# server.

Enhance your understanding by directly implementing L2 arping and L3 ping using the libc crate in the Rust language.

Want to work for a long time as a super developer who can handle the entire process of service development and operation on your own? Then build a solid foundation in IT infrastructure knowledge from the ground up, which is just as important as various development languages!

This is Part 1 of a roadmap lecture that concisely organizes the essential computer science (CS knowledge) needed to excel in development and data, in a short period. This lecture has also been used as an in-house lecture at top domestic companies for several years. Based on 20 years of experience in actual practice, from system SW to web, app development, and data science, this lecture systematically yet easily organizes the essential core knowledge needed to excel in development and data.

For those aiming to pass the "Network Specialist Examination." This course is a learning program that condenses only the key points of the IPA Network Specialist Examination. It focuses on themes directly linked to exam success and is designed to help you acquire knowledge efficiently. Rather than emphasizing volume, we provide carefully selected explanations of "the essential parts you must master to pass"! Let's work together toward passing the Network Specialist exam!

Arduino? Coding? You don't need to know anything. Just invest a little bit of your free time and you'll find something amazing.

Let's leverage AWS's key networking services to build everything from simple, basic networks to multi and hybrid networks, understand traffic flow in the architecture, and develop the skills and confidence to implement real cloud networks ourselves.

Understand the basics of security algorithms and certificates, and learn about TLS based on this.

You can learn the basics of AWS and Terraform usage simultaneously. You can become familiar with them through hands-on practice.

Learn the core HTTP features essential for practical use and how to design proper HTTP APIs.