One-Pass SIEM Deployment: Getting Started with Threat Hunting Using Wazuh and ELK (Basics)

This is a hands-on course focused on training in incident analysis through the basic knowledge and practical exercises needed to work as a security analyst. It also explores practical incident analysis methods required for corporate intrusion response and analysis.

This is a course on Linux command line tools. We will carefully select frequently used tools and teach you about their core functions and frequently used options. And we will teach you how to use them in practice. If you use various Linux tools well, Linux will become easier. And you will understand and handle Linux better :)

It was created to faithfully reflect the latest legal amendments in 2026 and recent exam trends. I will explain everything in a way that is easy for even those with no prior knowledge of personal information to understand. If you follow along to the end, you will definitely pass. Please trust me and join me!

When you join a company and start a project, you will start with setting up the server. At this time, you will not be able to set up properly without understanding the cloud and Linux. Learn the technologies and techniques for the cloud and Linux through this lecture!

We will conduct an in-depth analysis of major domestic security incidents, such as personal information leaks from mobile carriers, the March 20 cyberattack, and the hacking of the Blue House. By examining the causes, damages, and response processes of each incident, we will understand the security threats facing modern organizations and individuals and learn practical prevention and response strategies.

This course puts an end to operational vulnerabilities on Linux servers caused by incorrect permissions. Master file and directory permission control completely based on real-world practices.

⚓ Kubernetes CKS Certification! 🙇‍♀️ Still hesitating? 🚢 Come aboard the Ilpro-ho! We’ll take you along the optimal route.

✅ Out of the entire series (1) ~ (7), (5) operating system, user interface, database ✅ CS101 series lectures - From basic computer theory to the latest practical examples - Provides a wide range of basic knowledge

Learn systematically from the basics to advanced features of Zabbix, an essential tool for effectively monitoring IT infrastructure. Through real-world application cases, this course provides an opportunity to become an expert in monitoring with Zabbix.

This lecture is about automotive ECU cyber security based on a basic understanding of cryptography.

Have you heard of information security solutions, but do you know their exact roles and differences? A variety of information security solutions are used by businesses, including firewalls, IDS, IPS, WAF, DLP, and EDR! Precisely understanding the role each one performs, how it works, and in what situations it is used is an important first step toward developing your information security skills. A complete beginner’s guide to information security solutions (systems) that anyone can easily learn! Learn complex security technologies easily and systematically, starting from the basics.

This is the CPPG WIN course, the shortcut to obtaining the CPPG certification. It is a theory course designed to help you pass the 2026 CPPG certification exam, reflecting the trends from the most recent 13 exams.

This course proceeds in stages where you learn and apply necessary knowledge while building infrastructure, similar to real-world practice.

Master AWS networking completely! Learn VPC, subnet, routing, and security with a focus on practical application, and design secure and scalable cloud network architectures. Complete the core skills that every working engineer must know in a short period of time!

This course is a “Core Practical Linux” course designed not only for those encountering Linux for the first time, but also for those looking to enhance their Linux skills in practice. It covers the essential fundamentals of Linux, along with only the most frequently used and indispensable features from the perspective of a backend developer in the field.

You can effectively study the contents of the Information Security Engineer practical exam questions and obtain the Information Security Engineer practical qualification.

The author of "The Structure and Principles of Arm Architecture for System Software Development" will help you master the core of the Arm architecture (Armv8-A) and the Linux kernel interface!

The author of "Learning the Structure and Principles of the Linux Kernel Through Debugging" provides a thorough explanation of the core interrupt concepts of the latest Linux kernel (v6.1), which are most widely used in system software.

The author of "Learning the Structure and Principles of the Linux Kernel Through Debugging" provides a proper explanation of the core concepts of 'Interrupt Bottom Halves' in the latest Linux kernel (v6.1), which is most widely used in system software.

From installation and basic usage to vi, permissions, home directories, and file classification. We guide beginners through the areas where they most often get stuck, using hands-on practice. With a good guide, the black terminal window is no longer intimidating. We’ll be your reliable companion as you explore the world of Linux. ● Beginners encountering Linux for the first time, without a technical background ● Students in technical majors who want to rebuild their foundations ● Developers who need basic training ● Anyone who needs to learn the Linux basics first for service operations Practice environment: Windows (WSL / VirtualBox), Ubuntu 24.04, Rocky 9 (Mac users can practice after launching Bash) This course covers the fundamentals you need to learn hands-on, even in the age of AI. You’ll learn how to install Linux, work with files, edit with vi, and resolve permission errors. A lecturer with 27 years of experience will guide you at a beginner-friendly level. Spend one hour a day for about a week, and Linux will start to make sense.