Rub github locally?

Hi everyone,

I've used github for classes at school but not in the real world. My company hates the idea of putting code in the cloud, and i was thinking, there must be a way to create a local server with access control to only allow certain ips/users to access a repository (local server, same building lets say).

If its bridging people WW then no option for local, im only thinking of a team sitting next to one another.

Thanks