Whenever you find yourself on a sketchy public WiFi hotspot or a heavily-filtered network, using a VPN is a relatively sure way to tunnel your traffic to a safe location. It’s probably best not to trust a free provider, who will be selling your traffic information to advertisers, and why pay for a VPN when you can create one yourself with little to no bandwidth limitation and a trustworthy host? Setting up a VPN can be challenging, however, with a myriad of incompatible protocols and…