With OS X Server's VPN feature, can I go to say, Starbucks, and in effect use their non-secure WiFi securely by using OS X Server's VPN? What would happen? I would, in effect, being using my home internet connection at Starbucks? I thought about buying a VPN service for like $5-$10 a month so I can use public WiFi safely, but OS X Server is only $19. Would OS X Server's VPN work like purchasing a VPN service? What would be the difference? Thanks for your help!