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深信服X计划-网络协议基础 DNS
2022-07-05 21:35:00 【51CTO】
一、协议介绍




- 域名系统是一个分布式的结构,每个服务器上的数据库只保存了部分域名与IP的对应关系。

二、DNS查询方式

三、DNS域名解析过程
递归+迭代
客户端与本地域名服务器之间是递归查询,本地域名服务器和其他域名服务器(根、顶级、权威)之间是迭代查询。


四、DNS记录类型


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