Before routing wrote aboutHow to quickly build pptp VPN based on vpsArticles，But it seems there are still many people do not know exactly what that VPN，Then this article I am 818 devoted to the VPN in the end is what!
Speaking VPN，We still want to talk about the 1990s，Then this concept can not VPN，Companies to the Internet，To purchase a dedicated line (Line relates to the content of my[……]