veer-tech.hashnode.devFixing Name Resolution ErrorA Guide to Local DNS Troubleshooting in Azure When managing a production environment, infrastructure "resets" can often lead to unexpected downtime. Recently, while managing a Zammad instance on an Azure VM, a domain/SSL reset by the client caused th...4d ago·2 min read
veer-tech.hashnode.devCalico vs. CiliumIf you have ever set up a Kubernetes cluster "the hard way" or even on a managed cloud provider, you have faced the question: "Which CNI should I use?" For a long time, this was a boring decision. You picked the default, or you picked the one that wo...5d ago·4 min read
veer-tech.hashnode.dev🛡️ Ping is a Liar: The Case of the Silent FirewallWhy ping said "Yes" but Nginx said "No"—and how we fixed it with a single annotation. In our recent migration to Azure AKS, we hit a frustrating wall. We had just set up a new monitoring dashboard, but we couldn't connect to it. Here was the confusi...5d ago·4 min read
veer-tech.hashnode.devKubernetes Ingress: The Gatekeeper of Your ClusterKubernetes Ingress: The Gatekeeper of Your Cluster Subtitle: Why we use it, how it works, and a real-world story of debugging a "Phantom 500 Error" during migration. If you have ever deployed an application to Kubernetes, you know that getting it ru...5d ago·4 min read
veer-tech.hashnode.devDebugging Stale Data in a GraphQL API Behind a CDNDebugging Stale Data in a GraphQL API Behind a CDN Recently I encountered an issue where a dashboard consuming data from a GraphQL API was showing inconsistent and outdated results. The backend data was correct, but users were seeing different states...Feb 14·3 min read