I often use Openvpn to connect my servers toghter over several cloud servers provider.
This is my small how to for setting up the openvpn client.
Install the openvpn server
yum install wget wget http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm rpm -Uvh epel-release-6-8.noarch.rpm yum install openvpn
Set up the Vpn client
In /etc/openvpn extract you vpn config
Save you openvpn config file as client.conf
Test you vpn
openvpn --config client.conf
Now when its working restart you openvpn with
And now you will have vpn between you server.