For installing or setup the Openvpn you have to do the following work.
Step 1 – Download OpenVPN
Step 2 - Download OpenVPN certificates and than Configuration files (Windows, OSX and Linux).
Step 3a – Now Make a VPN directory to keep things ordered
cp /tmp/iVPN* ~/iVPN
Step 3b – Extract the zipped VPN files
ca.crt = certificate authority certificate
client1.crt = client certificate (ie your certificate)
client1.key = client key (ie your key)
Now the configuration files of .ovpn that contain the route files, IP’s of the gateways etc. They given routes such as direct to Netherlands, or Multihop, USA to UK. As the files are unzipped, you’ll see many single or multi hop routes appear. So this is the simple way to setup or installing openvpn however for further more to know about the best openvpn service. I will suggest you to check this http://goo.gl/kmWb8N