I have a weird question (usually it's the other way round) but is there a way to fool my Ubuntu installation into thinking that there is no network connection? I only want to establish a network connection when using a USB WiFi dongle. I don't want the computer to see any other adapters (whether plugged in or not).
How do I disable my gigabit ethernet port and all sub-layers (Don't even want the adapter to be "found by hardware")?