https://theithollow.com/tags/dns/ Recent content in Dns on The IT Hollow Hugo en-us Mon, 18 Feb 2019 15:00:16 +0000 https://theithollow.com/2019/02/18/kubernetes-dns/ Mon, 18 Feb 2019 15:00:16 +0000 https://theithollow.com/2019/02/18/kubernetes-dns/ <p>DNS is a critical service in any system. Kubernetes is no different, but Kubernetes will implement its own domain naming system that&rsquo;s implemented within your Kubernetes cluster. This post explores the details that you need to know to operate a k8s cluster properly.</p> <h2 id="kubernetes-dns---the-theory">Kubernetes DNS - The theory</h2> <p>I don&rsquo;t want to dive into DNS too much since it&rsquo;s a core service most should be familiar with. But at a really high level, DNS translates an IP address that might be changing, with an easily remember-able name such as &ldquo;theithollow.com&rdquo;. Every network has a DNS server, but Kubernetes implements their own DNS within the cluster to make connecting to containers a simple task.</p>