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The author of "Learning the Structure and Principles of the Linux Kernel Through Debugging" will help you firmly grasp the basic concepts of the latest Linux kernel (v6.1), the core of the Linux operating system and the most widely used system software!

Have you ever wondered how real attackers carry out cyberattacks? BHPT is a practice-oriented comprehensive course where you use on-demand labs to conduct penetration testing on specific hosts from an attacker's perspective, learning the methodology of discovering, attacking, reporting, and responding to vulnerabilities.

You will systematically learn the principles of how the CPU, memory, and disk collaborate, as well as how the operating system mediates resources. You will acquire practical foundational knowledge to read server specification sheets and identify performance bottlenecks, establishing a basis for learning about cloud and network technologies.

From Theory to the Field: Proving Core Competencies of a Security Expert through Wazuh+ELK SIEM Implementation Design and operate a Threat Hunting system, the core of security monitoring, firsthand. Through hands-on practice based on real-world attack scenarios, transform into a professional security engineer capable of delivering immediate results in the field.

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.

The author of "Learning the Structure and Principles of the Linux Kernel Through Debugging" provides a thorough explanation of the basic debugging features and methods of the latest Linux kernel (v6.1), which are most commonly used in system software.

The curriculum was created with commands that actual developers use. It does not cover complex concepts related to OS installation or management. You can quickly learn the basics of Linux usage in 2 hours.

This course will help you improve your work skills by utilizing PowerShell in your field.

The lecture focuses on how to use Docker in Swarm mode. It guides beginners to easily build and operate servers.

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

This is a practice-oriented course that provides the basic knowledge required to perform duties as a security analyst and conducts incident analysis training through hands-on exercises. We will explore incident analysis methods from a practical perspective necessary for corporate intrusion response and analysis tasks.

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

This lesson will teach you how to assign a domain name to your server computer.

This course covers how to use Linux. The part that beginners find particularly difficult is how to control the computer using commands. This course covers the most common rules that beginners need to use commands.

From the fundamentals of systems engineering to security setup, this course will guide you along the way.

Understand the basic knowledge required to build a virtual environment, create a virtual environment suitable for your environment using tools called Vagrant + VirtualBox, and build a Docker and Kubernetes Cluster. You can also introduce and practice virtualization SW suitable for macOS environments using Apple silicon chips.

Bestseller 『Study Computer Architecture + Operating Systems on Your Own』 author's free lecture. A collection of computer architecture and operating systems books that developers must know.

Establishment of a reporting system, including the promotion of various agendas for the Privacy Policy Council and Working-level Council, and reporting the results of inspections on safety measures and legal compliance by the Chief Privacy Officer (CPO) to the CEO. There is a need to establish and implement a self-audit system for personal information to conduct professional internal preliminary investigations and inspections regarding recent hacking and data breach incidents. Recognizing that existing certification systems such as ISMS-P cannot prevent accidents. Despite the need to develop audit checklists reflecting diverse services and industry characteristics and to carry out colorful and extensive tasks such as internal personal information files and business flow analysis for partners (over 1,000) and branches (over 100), these tasks are not being implemented. Furthermore, despite the need to defend various blind spots, experts are unable to do so due to a lack of knowledge. Accidents continue to occur and risks remain because appropriate audits of existing security systems are not being carried out, and those previously considered experts in management systems are not actually experts. Through this study, we aim to eliminate blind spots and strengthen the inspection of existing security systems (promoting detailed inspections), derive improvement measures, and proceed with reporting.

This is an introductory networking course for non-majors that focuses on understanding the flow of communication through visuals rather than memorizing terminology. Using the layered model as a framework, we follow the entire process of what happens when you enter a URL into the address bar from start to finish, helping you build practical networking intuition that can be applied immediately in the real world.

Now I can analyze the Linux kernel too! The easiest kernel lecture among all Linux kernel courses.