Please stop spamming! As a new poster your first couple of posts are moderated so don't appear immediately.
Have a look at the ibVPN app and its configuration in /etc/clearos/ibvpn.d/. You can replace its OpenVPN configs with your NordVPN ones. The Webconfig will allow you to add single machines to the VPN, but you can't update the ibVPN server list as they no longer exist. the only way to change the endpoints is to manually edit the configs.
It will allow you to route individual machines through the VPN but not the server itself so may not give you exactly what you want.
Vous pouvez lire le test du VTT Haibike Sdure Trekking 9.0 ici