detect client on web application is local Or from internet

Question

我怎么知道一个客户端，在我的Web应用程序中通过Wan（从Internet）连接，还是使用本地网络连接。如果有功能，请给我打电话。

Answer 1

You could setup/host a small web service that's only available within your intranet and try to hit it from the client javascript. If they are on your local network, it will be successful, else it will fail.