Changes

DNS使人们能够将域名以有意义的方式分配给互联网资源以及用户，而与实体的位置无关。因此，即使是对于移动设备而言，“WWW”超链接也得以保持一致。人们通过域名更加容易记住一个地址，但是连接到互联网时，这个域名需要被转化为相应的数字形式，即IP格式。<ref>[http://www.modemhelp.net/faqs/dns.shtml About DNS]</ref>

DNS使人们能够将域名以有意义的方式分配给互联网资源以及用户，而与实体的位置无关。因此，即使是对于移动设备而言，“WWW”超链接也得以保持一致。人们通过域名更加容易记住一个地址，但是连接到互联网时，这个域名需要被转化为相应的数字形式，即IP格式。<ref>[http://www.modemhelp.net/faqs/dns.shtml About DNS]</ref>

Coordination across the Internet is maintained by means of a complex authoritative root system known as the [[TLD|Top Level Domain]] (TLD), as well as the DNS  and other smaller name servers responsible for hosting individual domain information. For each domain, the DNS spreads the responsibility by mapping the domain names and assigning them into IP addresses, and vice-versa. This is accomplished through authoritative name servers which have been designated for each domain. Each authoritative name server is responsible for its own particular domain, but it has the authority to assign new authoritative name servers to any  of its sub-domains. The DNS is able to store many types of information, even the mail server lists for a specific domain. The DNS is a core element which ensures the functionality of the Internet through its distributed keyword-based redirection service.

互联网中的协调由一个复杂的授权根系统，即[[TLD|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。

However, the DNS does not include security extensions, which was instead developed as [[DNSSEC]].

However, the DNS does not include security extensions, which was instead developed as [[DNSSEC]].