Below are the steps necessary to connect your iPhone / iPad or any other computer via a PPTP VPN.
Why would I want to do this? For various reasons such as allow you to access information and servers that are behind a firewall, or maybe you just need to route traffic through different servers.
I’ve tested this on a 256mb Rackspace Cloud instance running Ubuntu 10.04 and with an iPhone and an iPad. Thanks to Yaniv for debugging the instructions.
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