oxyflour

# remember to add
#PermitTunnel yes
# in /etc/ssh/sshd_config

# create tun device on both machines
# ref: http://www.k336.org/2013/04/non-root-ssh-vpn.html
sudo ip tuntap add dev tun0 mode tun user oxyflour group oxyflour

# delete tun
sudo ip tuntap del dev tun0 mode tun