OpenConnect server, also known as ocserv, is a VPN server that communicates over SSL. By design, its goal is to become a secure, lightweight, and fast VPN server. OpenConnect server uses the OpenConnect SSL VPN protocol. At the time of writing, it also has experimental compatibility with clients that use the AnyConnect SSL VPN protocol.
Why AnyConnect? Although any connect protocol is simple for GFW to discover, it has been used for many large companies having relation of GDP. So right now it’s more safe than pptp openvpn and some other VPN protocols.
Update On Jan 2018
新建了一个可以快速搭建Docker镜像,可以不读下面冗长的内容了。
这里主要讲一下debian系统搭建ocserv的方式方法。