Best way to authenticate users to the proxy in mobile devices

Ricardo Polo asked:

As example, in Forefront TMG I can have a wpad entry in the DNS and computers discover it and autoconfigure the web proxy. When the user tries to go to the Internet he is promptped for the crendentials.

In iPhone or iPad it doesn’t work. Which is your recommeded way of implementing an authenticated proxy that works for mobile devices?

My answer:

This apparently is an issue with iOS. It does not automatically pick up WPAD.

You can work around this by going into the Wi-Fi settings for your network, setting the HTTP Proxy setting to Auto and entering http://wpad/wpad.dat? into the URL setting for the device.

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