I need to establish connection with the L2TP-server (VPN) from my Ubuntu Server 13.04 machine in order to gain access to the Internet.
How can i do this?
I can find a lot of guides how to do this using GUI and some network manager plugin, but how can i do this only using a shell?
This connection must be established on system boot and kept up all the time.
Later on i will have to share it with the local clients using NAT (Internet connection sharing).