Operating Systems: Administration and Security Fundamentals

Every modern computing system relies on an operating system to manage hardware, run applications, and secure data. Understanding how these systems function is the essential first step for anyone aspiring to work in IT administration, support, or cybersecurity. This text-based course guides you through the core architectures of major operating systems like Windows and Linux. You will transition from a basic user to an administrator who understands how to configure system settings, manage users, control access permissions, and implement foundational security measures. What you'll learn: - Understand core operating system components, kernel functions, and memory management. - Navigate and administer both Windows and Linux environments using the command line. - Manage user accounts, groups, and permission structures to enforce secure access. - Configure system security settings and apply modern zero-trust security principles. - Monitor system performance, analyze logs, and troubleshoot common operating system issues. - Automate basic administrative tasks using modern scripting and package managers. You will start by exploring fundamental definitions and system architectures before moving on to practical administration techniques. The curriculum progresses logically from system configuration and user management to advanced security hardening strategies. This course is designed specifically for beginners with no prior IT experience. It is ideal for career switchers, aspiring system administrators, and entry-level security analysts. Start reading today to master the operating system fundamentals that power the modern digital world.