add en pages

content/en/docs/tasks/administer-cluster/dns-custom-nameservers.md

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 - bowei
 - zihongz
 title: Customizing DNS Service
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+content_type: task
 ---
 
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 This page explains how to configure your DNS Pod and customize the
 DNS resolution process. In Kubernetes version 1.11 and later, CoreDNS is at GA
 and is installed by default with kubeadm. See [CoreDNS ConfigMap options](#coredns-configmap-options) 
 and [Using CoreDNS for Service Discovery](/docs/tasks/administer-cluster/coredns/).
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 * {{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
 * Kubernetes version 1.6 or later. To work with CoreDNS, version 1.9 or later.
 * The appropriate add-on: kube-dns or CoreDNS. To install with kubeadm,
 see [the kubeadm reference documentation](/docs/reference/setup-tools/kubeadm/kubeadm-alpha/#cmd-phase-addon).
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 ## Introduction
 
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 See [ConfigMap options](#configmap-options) for
 details about the configuration option format.
 
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 #### Effects on Pods
 
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     ["172.16.0.1"]
 ```
 
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 ## CoreDNS configuration equivalent to kube-dns