Linux DNS高速缓存的相关内容

阿里云文档 2026-04-28

如何为ECS实例配置自定义DNS服务器地址

在混合云或多云环境中，需要解析企业内部私有域名。ECS实例的默认DNS（100.100.2.136、100.100.2.138）仅解析公网和阿里云内网域名。为了满足客户端解析私有域名，需配置自定义DNS服务器地址。

阿里云文档 2019-08-07

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...

文章 2017-11-09 来自：开发者社区

##一.DNS #1.定义：DNS(Domain Name System,域名系统),英特网上作为域名和IP地址相互映射的一个分布式数据库，能够使用户更方便快捷的访问互联网，而不是去记住能够被机器直接读取的IP数串。通过主机名，最终得到该主机名对应的IP地址的过程叫做域名解析（或主机名解析）。DNS协议运行在UDP协议之上，使用端口为53. #2.DNS资源记录 DNS采用资源记录的方式存储信息....

文章 2017-11-07 来自：开发者社区

Linux的DNS高速缓存

一.DNS（Domain Name System，域名系统），因特网上作为域名和IP地址相互映射的一个分布式数据库，能够使用户更方便的访问互联网，而不用去记住能够被机器直接读取的IP数串。通过主机名，最终得到该主机名对应的IP地址的过程叫做域名解析（或主机名解析）。DNS协议运行在UDP协议之上，使用端口号53。二.配置实验环境 1.配置虚拟机IP，yum仓库，修改主机名为dns-serv...

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