Operating System Security Fundamentals: Windows and Linux

Operating systems are the foundation of modern IT infrastructure, making them prime targets for security threats. Understanding how to harden and protect both Windows and Linux is an essential skill for anyone entering the cybersecurity or system administration fields. This text-only course guides you from basic concepts to practical configuration strategies. You will learn to identify vulnerabilities, configure access controls, and implement defensive strategies across both major operating system families. What you'll learn: 1. Understand foundational security principles and key architectural differences between Windows and Linux. 2. Configure user privileges, access control lists (ACLs), and policies to enforce the principle of least privilege. 3. Manage system logging, audit trails, and monitoring tools to detect unauthorized activities. 4. Apply modern security practices, including basic firewall configuration and zero-trust security concepts. 5. Secure system services, manage network ports, and implement safe software update workflows. The course begins with essential security terminology and core OS architecture concepts before guiding you through practical, step-by-step hardening techniques for both environments. Designed specifically for beginners, this course requires no prior cybersecurity experience. Start reading today to build a secure foundation for your IT career.