Debian – Check openVPN client connected Debian

debianopenvpn

How can I check if my Debian OpenVPN client is connected? Is there a specific command I have to run? Or can I read it from the logfile?

Thanks.

Edit:
The answers below provide great value in debugging. I used the same open vpn credentials on two different systems, causing issues.

Best Answer

It isn't clear to me if you are asking from the perspective of a client or server. In any case one thing you should strongly look at is enabling the management interface on your OpenVPN daemon with this configuration option.

management 127.0.0.1 6001

With the management interface enabled you can connected to whatever port you setup for this purpose using netcat/telnet. Then you can issue the status command, or many other commands to determine exactly what is going on from the daemons perspective.

Related Solutions

Debian – openvpn – client can only connect after service restart

Since the problem could not be solved because I didn't find any errors in the logs and experts from outside also couldn't help but I was able to configure openvpn with the same config on another machine (root server, ubuntu) the solution was to switch from the previously Linux-vServer based virtual server to a KVM-based vserver from the same company and now everything concerning openvpn works as expected.

Openvpn – Make Monit check OpenVPN client connection status

it seems that the workaround is to have 2 checks: 1 for the processs and 1 to ensure the gateway host is reachable

check process vpn-network with pidfile /var/run/vpn-network.pid
   start program = "/etc/init.d/openvpn start vpn-network.com"
   stop program = "/etc/init.d/openvpn stop vpn-network.com"
 
check host tap0 with address 1.1.1.1
    start program = "/etc/init.d/openvpn start vpn-network.com"
    stop program = "/etc/init.d/openvpn stop vpn-network.com"
    if failed
        icmp type echo count 5 with timeout 15 seconds
    then restart

Best Answer

Related Solutions

Debian – openvpn – client can only connect after service restart

Openvpn – Make Monit check OpenVPN client connection status

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