50 Essential Linux Commands Learned by Hand - Practice-Oriented Introduction to Linux

In the era of AI, the way we learn programming must also change. Now, the ability to collaborate with AI is more important than writing code yourself. However, to communicate with AI, you must understand basic syntax such as variables, loops, and functions. This course consists of 95% live coding and focuses on learning Python basics through hands-on practice. This is an introductory Python course designed not just to write good code, but to help you communicate better with AI.

If you are afraid of the black screen, things are about to change. Meet the Linux terminal in just 10 minutes with WSL. ● Beginners and non-majors ● Computer Engineering and Computer Science students ● Developers in need of basic training ● Those who are intimidated by white text on a black screen ● Those who feel overwhelmed trying to launch an actual service Practice Environment: WSL / Virtualbox / Ubuntu 24.04 / Rocky 9 An instructor with 26 years of experience will guide you at a beginner's level. One hour a day for one week, and you will start to see Linux.

The ultimate goal of this course is to go beyond programming using IPC tools and to "develop the ability to appropriately select and design/implement IPC tools that fit software requirements."

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.

This is a 'Practical Linux Troubleshooting Course' where you analyze and solve problems together with generative AI, based on a Docker practice environment that reproduces 5 representative failures that occur in actual Linux operating environments. Even those who were overwhelmed about where to start examining problems can learn the problem-solving approach and thought process of field engineers through AI guidance.

This 'Core Practical Linux' course is designed for those new to Linux, as well as those looking to enhance their practical Linux skills. It covers core basic Linux content and focuses only on essential and frequently used features from a backend developer's perspective.

This is a practice-oriented course where you will learn how to manage and automate AWS infrastructure as code using Terraform. In this course, you will learn step-by-step, from the basic concepts of Terraform to the process of directly creating key AWS resources (EC2, VPC, Subnet, etc.). Additionally, you will conduct hands-on exercises to easily deploy infrastructure and verify results using a SaaS platform without the need for separate installations. Through the experience of directly creating and managing infrastructure in a real AWS environment—rather than just theory—you can develop infrastructure automation skills that can be applied immediately in the field.

This course puts an end to operational vulnerabilities in Linux servers caused by incorrect permissions. Completely master file and directory permission control based on real-world practical standards.

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.

This course is designed for developers, DevOps engineers, cloud engineers, and IT professionals who want to master advanced Kubernetes concepts used in real-world production environments. Throughout the course, students will engage in hands-on projects and real-world deployment scenarios, learning how to build secure, scalable, and production-ready Kubernetes infrastructure. Rather than focusing solely on theory, this course emphasizes practical implementation, troubleshooting, and best practices utilized by modern DevOps teams. One of the biggest challenges students face when learning Kubernetes is understanding how all components interact within large-scale environments. Many learners struggle with topics such as RBAC permissions, persistent storage, namespaces, network policies, StatefulSets, Kustomize, and secure cloud deployments. This course addresses these issues step-by-step through clear explanations, guided labs, and examples that mirror actual production environments. Students will learn step-by-step how to organize Kubernetes resources, secure workloads, manage application configurations, deploy stateful applications like MongoDB, and automate multi-environment deployments using Kustomize. Additionally, the course covers how to deploy applications to Google Kubernetes Engine (GKE) and configure Ingress, TLS certificates, monitoring, and scaling strategies. By the end of this course, students will have the confidence to design, secure, deploy, and manage advanced Kubernetes environments used in professional DevOps and cloud engineering workflows.

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.

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.

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I have created a 'Linux for Beginners' course that is easy for non-majors to understand and can be applied in practice immediately!

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

We will create a remote development environment using VS Code and extensions, and learn about WSL and code-server, a VS Code used on the web.

Learn cloud infrastructure automation technology using AWS and Terraform, and practice efficient infrastructure management and deployment. Manage AWS resources as code through Terraform, and learn how to deploy consistent infrastructure across various environments.

⚓ Kubernetes CKA Certification! 🙇‍♀️Are you still hesitating? 🚢Board the Ilpro-ho! We will guide you through the optimal route.

This course is Part 3 of the Full Stack series, designed to help you solidly master the latest server and Docker technologies. To ensure you can practically include Docker in your tech stack, this course is structured to test various Docker options step-by-step, cover essential related technologies like Linux, and guide you through building actual complex services.

✅ 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

In this course, you will learn how to have a free Linux server worth 20,000 won per month, how to use it, and how to utilize it.

Learn how to develop cloud-native applications using Kubernetes, the standard for container orchestration. From core Kubernetes concepts to actual application deployment and operations automation, you can acquire practical skills that are immediately applicable in the field. Learn how to build efficient resource management and deployment processes by integrating development and production environments.