Sep 11, 2025 · 3 min read · Like many teams running workloads in Kubernetes on AWS, we rely on NAT gateways to let our private pods access the internet. NAT is convenient but notoriously expensive, and recently, we noticed our NAT costs were growing month over month. The Proble...
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Sep 6, 2025 · 4 min read · If the phrase “paged at 3 a.m.” brings back memories of mysterious app errors and dependency timeouts, DNS issues in Kubernetes probably played a starring role. Scaling clusters introduces DNS latency, frustrating outages, and debugging marathons, es...
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Mar 6, 2025 · 11 min read · Introduction Kubernetes has revolutionized the way modern applications are deployed and managed, enabling container orchestration at unprecedented scale. At the heart of this powerful platform lies Kubernetes networking—a sophisticated system that en...
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Jan 20, 2025 · 8 min read · In a Kubernetes cluster, services and pods often need to communicate with each other. This requires reliable and efficient name resolution to convert service names into IP addresses. Without an effective DNS service, managing network traffic between ...
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Aug 17, 2024 · 8 min read · Introduction In a Kubernetes cluster, services and pods often need to communicate with each other. This requires reliable and efficient name resolution to convert service names into IP addresses. Without an effective DNS service, managing network tra...
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Aug 9, 2024 · 6 min read · ❓ How DNS works in k8s? In Kubernetes, CoreDNS acts as the central DNS server for the cluster. It is deployed as a Deployment and exposed as a ClusterIP service, making it accessible within the cluster network. All pods query the CoreDNS service to r...
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Jul 23, 2024 · 2 min read · 🗼Introduction DNS (Domain Name System) is a fundamental component of any networking setup, including Kubernetes clusters. Kubernetes deploys a built-in DNS server by default, which is essential for service discovery within the cluster. This blog wil...
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Jul 27, 2023 · 25 min read · Introduction CoreDNS is a flexible, extensible DNS server that is written in Go and can be used for service discovery, configuration management, and other networking tasks, offering advanced features and plugins for customization. In 2016, Miek Giebe...
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