I have different tunnels that I configured using the network manager GUI.
When I login to my desktop, I'm connected to the internet without any tunnels. To connect to a tunnel, I usually click on the network manager tray icon > VPN connections > Some VPN
I need that done automatically on startup, so I need to know how to do that in the cli.
It would also be nice if I could make sure that no application connects to the internet before the connection is tunneled.
I'm using Ubuntu 12 and openvpn.