Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Troubleshooting Kubernetes networking issues is challenging because it spans multiple abstraction layers: pods, services, network policies, and the underlying infrastructure. Here’s a systematic approach. 1. Understand the Scope Identify the specific symptom: Pods can’t talk to each other? Services unreachable? External access broken? DNS lookups failing? Determine whether the problem hits one pod, one namespace, […]
Configuring Kubernetes Network Policies for pod-to-pod communication means defining rules that control traffic flow between pods. Network Policies are a Kubernetes resource that secures your cluster by limiting communication based on labels, namespaces, and IP blocks. Here’s a step-by-step guide: 1. Prerequisites Network plugin: Ensure your cluster uses a CNI plugin that supports Network Policies […]
