In previous article we went as far as setting up a VPN server on a Windows PC. In this article, I will explain how to connect to it from various clients and some techniques for setup and management. I split this article into two parts because it is long, but if you have not read Part 1, please read it first (especially, please read the notes first).
After much trial and error, I was able to build a VPN server that can connect from an iPhone without having to release ports or change Windows Firewall settings as described in other articles.
I will not discuss the mechanism and features of VPN because I believe that the readers of this article already have a clear purpose of using VPN communication. I think the main purposes of use are as follows.