kube-proxy

In the Kubernetes cluster, networking rules and routes on nodes are managed by kube-proxy, which runs on every node. These rules allow communication between Pods and external clients to Pods and are a vital part of the Service API Object. On the Linux platform, kube-proxy configures rules using iptables (most commonly), whereas on the Windows platform, the Host Networking Service (HNS) is used.

We will cover Kubernetes networking in more detail in the next chapter.