How to setup a private pool without network access?

[createfile]

Hello

I have a big server room, for security reason, I won't let any machine have access to internet, I want to let them mine bitcoin when they are idle.

So I want to build a private pool without network access
( I want use USB disk to copy blocks list from other computer which have access to internet to the server machine of the private pool every day, and ofcourse copy result blocks out and publish it to bitcoin network)

Is that possible?

What risk do I have ?

Thanks,
CreateFlie

[error]

You can't mine without network access.

[oVPN]

you could setup a mining-proxy, but you still need internet access at a point of your network.

[createfile]

I also have some auto vendor machines ( which have a desktop computer inside, I can install a video card for them )
electrics are for free ( I paid the rent monthly, electrics bills are cover by landlord, they measure how much my machine uses )

And Is that possible to setup the miner stop occupying CPU/memory in 1 second after keyboard is touched?

[Dobrodav]

Actualy that is not needed (reaction to keyboard input).
Some of existing miners have functionality to run with flags that prevent them to overuse of resourses.

[createfile]

you could setup a mining-proxy, but you still need internet access at a point of your network.

only the proxy server need internet access?

[Dobrodav]

Yes. and obviously, other machines need acces to that proxy (or to the machine that runs pool software and have acces to the internet).

[error]

Oops, looks like he was going to do CPU mining. There went that idea.

[Dobrodav]

... ( which have a desktop computer inside, I can install a video card for them ) ...

And yes, if you are not talking about thousands of computers, cpu mining is useless.