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What Is A Kubernetes NodePort And How Does It Work? Are you curious about how applications running inside a Kubernetes cluster can be made accessible from outside? In this video, we'll explain the concept of a NodePort and how it functions within Kubernetes. We'll start by describing what a NodePort is and how it opens a specific port on every node in your cluster. You'll learn how Kubernetes assigns these ports and how kube-proxy manages incoming traffic. We’ll also cover how traffic is forwarded to backend Pods and load balanced across them to ensure even distribution of workload. Additionally, we'll discuss the role of internal service types like ClusterIP and how targetPort directs traffic to the correct application port on your Pods.

This setup is particularly useful in cloud environments such as AWS, Azure, and Google Cloud, where NodePort can serve as an initial step for exposing applications before moving to more advanced solutions like LoadBalancer or ingress controllers. We’ll highlight potential security concerns and challenges like port conflicts and managing multiple nodes. Finally, we'll explore how DevOps teams combine NodePort with external load balancers for better traffic control and security policies. Whether you're developing, testing, or planning to deploy scalable applications, understanding NodePort is essential for managing external access in Kubernetes. Join us to learn more about this fundamental Kubernetes feature and how it fits into the broader deployment process.

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