名字解析器是一种通过网络将自身服务器或者对方连接的服务器的域名、IP地址所谓服务器网络“名字”的机器。
类似的，当一个解析器在一个响应数据中得到对一些名字有一系列资源记录，并且想要缓存他时，他应该去检查缓存中是否已经存在相应的记录。
In a similar vein, when a resolver has a set of RRs for some name in a response, and wants to cache the RRs, it should check its cache for already existing RRs.
当一些同类型的资源记录对一个特殊的名字可用时，解析器应该将他们全部缓存或者全部不存。
When several RRs of the same type are available for a particular owner name, the resolver should either cache them all or none at all.
为了把一个名字映射为一个IP地址，应用程序调用一种名叫解析器的库程序，将名字作为参数进行传递。
To map a name onto an IP address, an application program calls a library procedure called the resolver, passing it the name as a parameter.
应用推荐