Since 2010, I've been a huge admirer of virtual private networks (VPNs). It all began with Mobilarian (formerly Symbianize) and Pinoy Underground, where I learned a ton of useful tips and tricks for implementing VPNs, from basic to advanced, including how to design a GUI and configure my own VPN server. And I'm more than pleased to share with you on my blog site what I've learned since then. So pay attention and pick up a lot of knowledge.