service openvpn start

service openvpn start
 * Starting virtual private network daemon         [fail]

service openvpn start 
 * Starting virtual private network daemon         [ OK ]

service openvpn status
 * VPN 'server' is not running

ifconfig

ip6tnl0: flags=128<NOARP>  mtu 1452
       unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 1000  (UNSPEC)
       RX packets 0  bytes 0 (0.0 B)
       RX errors 0  dropped 0  overruns 0  frame 0
       TX packets 0  bytes 0 (0.0 B)
       TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
       inet 127.0.0.1  netmask 255.0.0.0
       loop  txqueuelen 1000  (Local Loopback)
       RX packets 0  bytes 0 (0.0 B)
       RX errors 0  dropped 0  overruns 0  frame 0
       TX packets 0  bytes 0 (0.0 B)
       TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

tunl0: flags=128<NOARP>  mtu 1480
       tunnel   txqueuelen 1000  (IPIP Tunnel)
       RX packets 0  bytes 0 (0.0 B)
       RX errors 0  dropped 0  overruns 0  frame 0
       TX packets 0  bytes 0 (0.0 B)
       TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

See also

• OpenVPN, Tunnelblick, OpenVPN Connect, .ovpn, CRL, systemctl status openvpn, /var/log/openvpn.log, /lib/systemd/system/openvpn.service, systemctl status openvpn-server@server, /etc/openvpn/, /etc/openvpn/server.conf, /etc/pam.d/openvpn, /etc/openvpn/users, openvpn --help, OpenVPN changelog, Pritunl, tunl0