Check_openvpnclients
Plugin for Nagios or Shinken which displays clients connected to OpenVPN.
Check if an OpenVPN server runs with the management interface and displays the list of clients connected to the VPN.
The management interface must be enabled, in your server configuration file add this line in your server.cfg and reload your server : management [IP NETWORK] [PORT QUERY] ex : management 0.0.0.0 7505
Usage :
check_openvpnclients.py -H HOSTADDRESS -p QUERYPORT [-D html|default] ex : check_openvpnclients.py -H 172.25.5.23 -p 7505 -D html