Since Virtuozzo 2.6.1, VPN support for a VPS via the TUN/TAP device is
available. To allow VPS #101 to use the TUN/TAP device, the following
steps are required:



1) Make sure the tun module has been already loaded on the hardware node:



lsmod | grep tun



If it is not there, then issue the command ‘modprobe tun’ to load it and add it into /etc/modules.conf.  This module should be loaded before Virtuozzo is started, so you should run ‘service vz restart’to make it available at runtime.



2) Allow the VPS to use the tun/tap device:



vzctl set 101 —devices c:10:200:rw —save



3) Create the device in the VPS:



vzctl exec 101 mkdir -p /dev/net

vzctl exec 101 mknod /dev/net/tun c 10 200



4) Set proper permissions for /dev/net/tun:



vzctl exec 101 chmod 600 /dev/net/tun