listen - on——设置服务器应该侦听的解析请求的IP地址。

Listen-on — Sets the IP addresses on which the server should listen for resolution requests.

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namebench程序的工作方式是向每个DNS服务器请求解析网站地址。

Namebench works by requesting website addresses from each DNS server.

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域名解析的工作方式是客户端与服务器通信，并请求将某个特定地址解析到对应的部分(即从名称解析到IP地址，或从IP地址解析到名称)。

Domain name resolution works by a client contacting a server and requesting that a particular address be resolved to the corresponding part (i.e., name to IP address, or IP address to name).

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