Sometimes I have trouble controlling myself while in front of the computer and I tend to procrastinate a lot doing Internet surfing. Fortunately I do not need Internet for most of my work.
So I would like to have a way to completely disable networking on Linux. To enable it again I would need a USB stick which would act as a key.
Do you have any advice how one could go about implementing such a scheme? Ideally the enabling/disabling of networking should be as quick and automatic as possible. Also I would like a solution which, once implemented, is easy to set up on different machines.
EDIT: I have a similar set-up for my laptop, but it is not as automatic as I like. I simply delete all the wireless drivers and keep a copy of them on a USB stick. But this solution is not easily portable. So I am looking for ideas how to improve it.