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[帮助文档] 如何在Linux实例中自定义配置DNS

在创建ECS时，DNS服务器采用默认配置，不需要额外配置。若您的DNS服务器无法满足业务需求，可自行配置DNS。本文主要介绍在Linux实例中自定义配置DNS的方法。

[帮助文档] 如何在AlibabaCloudLinux实例中通过“/etc/resolv.conf”文件自定义配置DNS

创建ECS实例时，DNS服务器采用默认配置，不需要额外配置。如果您的DNS服务器无法满足业务需求，可参考本文在Alibaba Cloud Linux 2/3实例中自定义配置DNS。

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[帮助文档] 如何解决Linux系统ping默认DNS地址时出现“sendmsg:Operationnotpermitted”错误

问题描述访问网站慢，ping默认DNS地址显示如下。ping本地回环地址显示如下。 ping: sendmsg: Operation not permittedping: sendmsg: Operation not permitted系统负载不高，网络线路通畅，资料库无死锁进程。系统日志出现大量信...

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