Apple iOS

As the iPhone, iPad, and Touch utilize the Safari web browser albeit with a reduced feature set, the ability to use a proxy server (and a PAC file) remains.

There’s little in the way of actual documentation regarding the functionality on the iPhone, and in particular the format for the automatic proxy URL.

Utilizing a PAC File

1. Click the ‘Settings’ icon.
2. Click the arrow to view ‘Wi-Fi’ options.
3. For the wireless connection you wish to configure, press the blue icon.
4. Scroll to the bottom and choose ‘Auto’.
5. Enter the location of your PAC file in the format: http://domain.com/filename.pac

The format of the PAC file must follow the above syntax, not doing so will result in the below error when trying to access URLs in iPhone Safari: “Operation could not be completed. (POSIX error 12 – Cannot allocation memory)” (NSPOSIXErrorDomain:12)

Utilizing a proxy server

1. Click the ‘Settings’ icon.
2. Click the arrow to view ‘Wi-Fi’ options.
3. For the wireless connection you wish to configure, press the blue icon.
4. Scroll to the bottom and choose ‘Manual’.
5. Enter the proxy server and port, select authentication if your proxy server requires it.

 

Last Updated: July 21st 2011