tun0 interface has disappeared!

my tun0 interface has disappeared, did you know how to reinstall it plz ?
I really need it to use openvpn.

thanks a lot

/etc/init.d/openvpn start ?

no interface tun0 appeared

Please provide more informations.

  • What is the content of /var/log/openvpn.log ?
  • Is it a fresh install ?
  • Did installation complete properly ?
  • what are installation logs ?

/var/log/openvpn.log : nothing into
not a fresh install
yes it did
I don’t know where install logs are (sorry)

Are you on jessie or wheezy ?