How to set the receive.denyNonFastForwards on a repository in GitHub

Question

I have a repository hosted on GitHub which has several forks.

How can I set up the config of the main repository to set the receive.denyNonFastForwards

Answer 1

Github enterprise edition now has a feature for disabling force pushes. For the ones not using the enterprise edition you can configure a pre-push hook.

It is a good practice to never force-push to master unless absolutely necessary.