Introduction to Linux : crash course

This course is designed for Developers, DevOps Engineers, Security Engineers, Freshers, QA, Infrastructure, Build & Release, IT, and InfoSec/AppSec professionals who want to learn and implement DevSecOps practices using real-world tools, technologies, and industry security best practices. You will gain hands-on experience integrating security across the entire Software Development Life Cycle (SDLC)—from architecture and code to infrastructure, pipelines, containers, and runtime environments. This course equips you with high-demand DevSecOps skills that can help you secure top-quality roles with higher compensation, similar to current market trends in DevOps, Cloud, and Cybersecurity. In today’s digital-first world, embedding security into engineering workflows is no longer optional—it is essential for business success. DevSecOps: Integrating Security into the SDLC Using Jenkins and Modern Tooling This course is ideal for individuals and teams who want to shift security left and build secure, scalable, and automated DevOps pipelines. You will learn how to: Integrate security principles, architecture, and organizational best practices into DevOps workflows Prevent accidental exposure of secrets, credentials, and sensitive data in source code repositories Secure Linux systems, virtual machines, and CI/CD build agents Identify, fix, and patch vulnerabilities in: Application dependencies Dockerfiles and container images Runtime application environments Secure Docker images, containers, and containerized workloads Secure Infrastructure as Code (Terraform) using policy and security scanning Harden and secure CI/CD pipelines against misconfigurations and attacks Perform security testing using: Threat Modeling Unit and Integration Tests Software Composition Analysis (SCA) Static Application Security Testing (SAST) Dynamic Application Security Testing (DAST) Automate security testing during build, test, and deployment, instead of relying on manual post-release testing Learning Experience Each concept is explained in a simple, visual, and structured manner: Slide-based conceptual explanations Followed by hands-on, real-world labs You will: Set up your own Linux VMs, security tools, and CI/CD pipelines using Jenkins Secure Docker images, containers, and infrastructure Work with a dedicated GitHub repository containing all code, configurations, and examples used in the course Why Enroll in This Course? ✅ One of the most practical, hands-on DevSecOps Bootcamps available online ✅ Learn DevSecOps, Cloud Security, and Application Security without expensive institutes or tutors (often costing $400–$4000) ✅ Self-paced learning with a comprehensive, up-to-date curriculum ✅ Clear understanding of the difference between traditional DevOps vs modern DevSecOps ✅ Learn how to embed security at every stage of the pipeline ✅ Automate security scanning early instead of fixing issues after production ✅ Hands-on experience with free and open-source security tools ✅ Industry insights referenced from Gartner reports on DevOps and Security collaboration By the End of the Course By the end of this course, you will have gained strong theoretical knowledge and extensive hands-on experience with DevSecOps tools, technologies, and practices. You will be confident in designing, building, and implementing secure DevOps or DevSecOps pipelines independently for real-world projects and organizations. You will also have access to a DevSecOps Quiz to test and validate your foundational knowledge in DevSecOps and SecOps. Goals Learning Experience Each concept is explained in a simple, visual, and structured manner: Slide-based conceptual explanations Followed by hands-on, real-world labs You will: Set up your own Linux VMs, security tools, and CI/CD pipelines using Jenkins Secure Docker images, containers, and infrastructure Work with a dedicated GitHub repository containing all code, configurations, and examples used in the course Prerequisites Basic knowledge of the following is helpful but not mandatory—everything is covered from scratch: DevOps & Jenkins Docker & Containers Linux, CLI & Shell Scripting Security fundamentals

Mastering Threat Mitigation, Custom Rules, and API Protection for Modern DevOps Pipelines

The author of "Learning the Structure and Principles of the Linux Kernel through Debugging" properly explains the core interrupt concepts of the latest Linux kernel (v6.1), most 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.

The author of "Learning the Structure and Principles of the Linux Kernel Through Debugging" thoroughly explains the core concepts of processes in the latest Linux kernel (v6.1), which is most widely used in system software.

The author of "디버깅을 통해 배우는 리눅스 커널의 구조와 원리" properly explains the most advanced kernel memory dump debugging skills for the latest Linux kernel (v6.1), most widely used in system software.

✅ 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

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

If you've ever been fascinated by people typing in unknown Linux commands on a black screen, but were at a loss as to where to start or what to do, this course is for you.

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

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

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.

Learn systematically from the basic usage to the advanced features of Zabbix, an essential tool for effective monitoring of IT infrastructure. We offer the opportunity to grow into a monitoring expert using Zabbix through real-world application examples.

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

This course is an introductory lecture prepared for those who are new to Terraform, an infrastructure automation tool. Instead of repeatedly performing manual configurations in cloud environments, you can learn how to easily and quickly build and manage infrastructure using code. It is specifically designed with easy explanations and hands-on exercises that even non-majors can follow, so that beginners who are encountering the concept of IaC for the first time can understand it.

One of the major fields of hacking is hacking networks.

This course proceeds in stages, similar to the actual work, by learning and applying the necessary knowledge while configuring the infrastructure.

This lecture analyzes various protection techniques in the Linux kernel, methods to bypass them, and various vulnerabilities. Practical examples are provided for each lecture.

Software development roles in the defense industry: ✔ Have different hiring criteria compared to general IT companies ✔ Use specialized tech stacks and development methodologies ✔ Offer very little information on how to effectively highlight your major, career, and projects. This course: 👉 Provides the perspective of a software developer who has experienced actual defense projects and hiring processes 👉 Explains how defense companies evaluate software developers 👉 Focuses on specific case studies to show you how to prepare your resume, interviews, and projects to increase your chances of success. This course transforms the state of "wanting to become a defense software developer but having no idea what to prepare" into a "clear roadmap you can start following right now."