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Situation: I have a private VPN server at home which is open to the internet so that a certain group of people can connect to it (only keypair authentication is allowed).
How can I see which clients are currently connected to my VPN server?
I already tried to ping the hosts but it seems like some (actually most of them) block ICMP requests, so this fails always.
Of course, I could examine /etc/openvpn/openvpn.log
every time but this is not very convenient and definitely not suitable for a status report sent via email to me.
Remark: I'm using OpenVPN 2.2.1 x86_64-linux-gnu
.