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域名和域名解析 根本上讲Internet是一个数字的世界,网上定位是由一长串没有意义(生活中的意义)的IP地址来实现的。网络的先驱们发现大多数人对IP地址是十分头疼的,所以开发出来一种方法来帮助大家记忆,叫做域名解析系统(Domain Name System,可以参看RFC标准)。在这个系统中,人们可以按一种层次化的树型结构方式对Internet中的每台主机指定一个易于记忆的名称。简单说就是制订一种命名规则,让每台主机有意义的名字和无意义的
Domain name and domain name resolution Internet is essentially a digital world, online positioning by a long list of meaningless (meaning in life) to achieve the IP address. The pioneers of the Internet found that most people are a big headache with IP addresses. Therefore, a method has been developed to help people remember, called the Domain Name System (RFC). In this system, one can assign each host in the Internet an easy-to-remember name in a hierarchical tree structure. To put it simply, it is to make a naming convention that makes each host a meaningful name and meaningless