服务器如何找到真实的客户端IP地址？ [英] How can a server find real client IP address?

问题描述

我只能从NAT和代理后面的地方访问互联网。 此网站也会显示我的机器的专用LAN地址，以及我的NAT的公共地址。他们显然在这个过程中使用了javascript，但我只能找到他们设置值的代码，而不是他们如何找到它。那么，我们如何使用javascript找出客户端机器的私有IP地址？

I can only access the internet from my place from behind a NAT and a proxy. This site however also shows my machine's private LAN address, as well as my NAT's public address. They are apparently using javascript in the process, but I can only find code where they set the value, but not how they find it. So, how can we find out the private IP address of a client machine using javascript?

推荐答案

你确定你落后了吗？ 只是 NAT路由器？如果您在代理服务器后面，代理服务器可能会添加 X-Forwarded-For 标头。

Are you sure you're behind just a NAT router? If you're behind a proxy, the proxy might well be adding an X-Forwarded-For header.

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