Bare Bones (PPTP) VPN Installer for CentOS See http://drewsymo.com/networking/vpn/install-ptpp/ for more information.
To get started with your own secure VPN, simply execute the following commands at your servers command-line:
$ yum install -y git
$ cd /opt && git clone git://github.com/drewsymo/VPN.git
$ cd VPN && bash vpn-setup-vanilla.sh
If you're on Linode, you can simply rebuild your instance with the PPTP VPN Installer stackscript.
Drew Morris