Installing VPN software on OpenVZ virtual servers requires the TUN/TAP kernel module to be loaded on the host server, then enabled for the container that requires access. To check if your container has been allocated TUN permissions appropriately, simply run:
# cat /dev/net/tun
This should be returned:
# cat: /dev/net/tun: File descriptor in bad state
If you get a 'Permission Denied' error or anything else, there is likely a problem with the TUN configuration for your container. Please let us know, and we will look into the problem immediately!
