Kubernetes Service Discovery and Cluster DNS Essentials

In modern containerized environments, microservices must locate and communicate with each other dynamically. This text-based course guides you through the core mechanisms of service registration and name resolution within a cluster. You will start with the fundamental concepts of container networking, learning how core components establish stable communication pathways. By understanding the inner workings of internal domain resolution, you will gain the skills needed to configure, maintain, and troubleshoot application connectivity. What you'll learn: Understand the foundational architecture of cluster-wide name resolution; Configure CoreDNS and examine its translation rules; Analyze how services register their IP addresses dynamically; Troubleshoot common network discovery and resolution failures; Apply modern network policies to secure internal cluster communication. The course begins with essential networking terminology and basic concepts before moving into step-by-step written breakdowns of configuration files and diagnostic commands. This course is designed for beginners, system administrators, and software developers who are new to container orchestration and want to grasp cluster networking without needing prior specialized network engineering experience. Start reading today to build a solid foundation in container communication.