可以使用客户端Javascript执行DNS查找（IP地址的主机名）吗？ [英] Can I perform a DNS lookup (hostname to IP address) using client-side Javascript?

问题描述

我想使用客户端JavaScript来执行DNS查找（主机名到IP地址），如客户端计算机所示。这是可能的吗？

I would like to use client-side Javascript to perform a DNS lookup (hostname to IP address) as seen from the client's computer. Is that possible?

推荐答案

在JavaScript标准库中没有主机或ip地址的概念。所以你必须访问一些外部服务来为你查找主机名。

There's no notion of hosts or ip-addresses in the javascript standard library. So you'll have to access some external service to look up hostnames for you.

我建议托管一个cgi-bin，它查找主机名的ip地址，通过javascript访问。

I recommend hosting a cgi-bin which looks up the ip-address of a hostname and access that via javascript.

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