OpenVPN - how to find who's connected?

[sarahwithanx at gmail.com (Sarah McGlinchey)]

OpenVPN usually updates a status file.  If you installed by RPM it
might be /etc/openvpn/openvpn-status.log or similar.

The status file can be generated to a file of your choice using the
'--status' argument when you start the server.  Take a look at the
openvpn man page

The status file is similar to the output you are seeing in the logs,
but only show current clients

On 11/7/05, John Abreau <jabr at blu.org> wrote:
> Is there an easy way to determine who's currently connected to an
> OpenVPN server when it's using udp? I've been looking through the
> openvpn.log file, but it's not clear what corresponds to a connection
> starting and a connection stopping. I spent an hour searching on google
> for something useful, but ame up empty.
>
> There is an occasional "Peer Connection Initiated" that looked relevant
> at first, but then it turned out these appeared at unpredictable
> intervals for a while, then stopped appearing entirely, for a connection
> that was on continuously over the weekend.
>
> With the pptp vpn I'm replacing, I could look at the tun* devices with
> ifconfig to determine who was currently using the vpn. With OpenVPN, I
> have a single tap0 device which tells me nothing about the individual
> clients.
>
> --
> John Abreau / Executive Director, Boston Linux & Unix
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