文章目录一、域名二、域名服务器三、域名解析过程四、递归查询五、迭代查询六、高速缓存一、域名域名 :① 域名表示方法 : 字母 , 数字 , “-” 符号 , “.” 符号组成 ;② 标号 : 使用 “.” 分割开的字符串称为标号 , 每个标号不能超过 63 个字符 ;③ 标号级别 : 域名中的标号级别 , 自左向右 , 优先级别由低到高 ;④ 域名示例 : www.baidu.com , ....

问答 2021-12-02 来自：开发者社区

DNS中的迭代查询与递归查询结合查询过程具体是什么啊？

问答 2021-12-02 来自：开发者社区

DNS中的递归查询查询过程具体是什么啊？

文章 2017-11-03 来自：开发者社区

详解DNS递归查询与迭代查询

关于01月23日全国范围内DNS污染，域名解析故障的根源，资深的IT人士都知道原因是什么，并非国家互联网应急中心发出的遭受攻击一说。因此这里介绍一下DNS服务器的查询原理，也就是递归查询和迭代查询。下图比较简明的描述了DNS服务器为客户端解析主机www.163.com的全过程. 根域名服务器:是互联网域名解析系统（DNS）中最高级别的域名服务器，全球有386台根服务器,被编号为A到...

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更新时间 2023-12-11 13:23:57

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