L2TP and L2TP/IPsec support for NetworkManager
High performance PPTP/L2TP/SSTP/PPPoE/IPoE server for Linux
Project Fog is an Ubuntu and Debian-based VPS AutoScript. Tunneling software comes pre-installed.
auto install the PPTP, L2TP and IPSec in your CentOS 7 server
Script Auto Install SSH for VPS
a collection of useful unix commands/scripts/etc.