I am trying to setup monitoring for my openvpn setup. Everything I have found so far doesn't have good logging for anything but the main network connection.
I already have logging of openvpn data usage etc I just want to be able to monitor each virtual nic as well as the tun interfaces (15 of them) for traffic usage in real time to see traffic peaks, etc. Each tun interface can only handle about 300mbps of traffic, so I want to make sure they are never saturated.
Anyone have any good suggestions? I am only monitoring one server.