OpenVPN on 4.0.2CD
From Knoppix Documentation Wiki
Installing OpenVPN under Knoppix 4.0.2CD using a persistent disk image (PDI)
Setup
Installing
Following notes from http://openvpn.net/howto.html#install
apt-get -y install openvpn carpaltunnel # Select "yes" when the installer asks about creating the tun device.
Configuring
Following example from http://openvpn.net/man.html#lbAV
modprobe tun