Translations:Domain Name System/4/zh: Difference between revisions

Latest revision as of 19:30, 17 December 2015

互联网中的协调由一个复杂的授权根系统，即顶级域（TLD），以及DNS和其他负责托管单个域信息的小型名称服务器进行维护。对于每个域而言，DNS都通过映射域名并将之指定给IP地址来分担责任，反之亦然。这是通过已经指定给每个域的授权名称服务器来完成的。每个授权名称服务器负责其自身的特定域，但是它有权将新的授权名称服务器分配给它的子域。DNS能够存储各种类型的信息，甚至是某个特定域的电子邮件服务器列表。DNS作为能够确保互联网功能正常的核心元素，它的作用是通过其基于关键字的分布式重定向服务来实现的。

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