abiteddie wrote
From my interface tun0: my inet IP is 10.8.0.2. But i have to here the same IP as the external IP from my Openvpn Server is -> 222.217.224.79
This is exactly what a Virtual Private Net do. Now your vpn server and all its clients are in net 10.8.0.0/24. One machine can have multiple IP's simultaneously and that is how VPN works.