The story of a non-network expert

If you are a developer who deals with HTTP or want to become a developer but did not major in computer science and are weak in networking, gain lifelong knowledge with this one course!

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.

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.

This course is designed to learn the fundamentals of networks that form the foundation of the internet. It is structured to help you understand the basic concepts and structure of networks and systematically learn the principles of internet communication. Learners will acquire foundational theoretical and practical knowledge about networks, establishing a foundation for learning in the IT and information communication fields.

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

We will show you how to use Wireshark to check actual network packets and perform everything from HTTP communication analysis to web vulnerability attack detection and malware communication analysis. We explain everything step-by-step starting from the OSI 7 layers so that even beginners without a network foundation can follow along. After taking the course, you will be equipped with the practical skills to find and analyze the specific packets you want.

[Introduction to Security Incident Response: Learning through Scenarios of Web Server Hacking, Ransomware, and Account Takeover] This course examines why various information security incidents—such as web server hacking, ransomware, account takeover, and internal penetration—occur and how they spread, categorized by incident type. Students will follow each incident scenario to understand the attack flow, analyze the core causes of the incident, and learn how to resolve issues and prevent recurrence through security architectures such as firewalls, DMZ, access control, privilege management, backup, and log monitoring. Rather than a simple explanation of security concepts, this is a scenario-based introduction to information security that provides a comprehensive understanding from root cause analysis to resolution strategies.

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

If you want to work for a long time as a super developer who can handle the entire process of service development and operations alone, building a solid foundation in IT infrastructure knowledge is just as important as learning various programming languages!

This course covers the core of TCP/IP network programming required for online game development, with a practical, hands-on focus. You will learn step by step, starting with the basic principles of sockets and progressing through client-server architecture design to implementing a game framework using a self-developed network library. Topics covered: Basic network concepts and how TCP/IP works TCP programming using the Socket API Packet protocol design and implementation of transmission structures Development of a client/server-based game framework Optimization and practical tips needed for actual online game development Notes: The course is conducted on Windows using Visual Studio. Although it uses the standard bsd socket API, there are slight differences from Unix-based operating systems. IOCP and Overlapped I/O are not covered.

Information security is difficult and too technical? No. Start learning the basics of information security to create a secure web right now!

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

✅ Among the series of (1) ~ (7), (7) web applications, networks, clouds, WWW, information security ✅ CS101 series lectures - From basic computer theory to the latest practical examples - Provides a wide range of basic knowledge

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 connected to passing the exam and is designed to help you acquire knowledge efficiently. Rather than emphasizing volume, we carefully select and explain "the essential parts you must master to pass"! Let's work hard together toward passing the Network Specialist exam!

This training will help you understand the world-famous cloud, build your own cloud environment, and strengthen your ability to use it easily.

Creating a simple Omok game using Unity and a C# server

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.

Clearly understand the four key differences between physical equipment–centric on-premises networks and AWS cloud networks, and first establish the overall coordinate system of AWS network architecture, from Region to AZ to VPC to Subnet. Although this lesson covers concepts only without hands-on practice, it also provides practical checklists and common mistakes to build a solid foundation for the rest of the 12-lesson course.

Network studies that you give up on every time because they are difficult and boring. Finish it once and for all with this textbook.

⚓Kubernetes (Docker Desktop, Nginx, Minio, Longhorn) 🙇‍♀️Are you still hesitating? 🙋‍♂️Just trust me and follow along! I will take your skills to the ⭐next level.