How can I prevent non-fastforward pushes to selected branch(es) in git?

Question

I would like to protect my git repository so only non master branches can be overwritten. Is there a way to protect only selected branches?

Answer 1

If you would be allowed to modify your server, then this will enable fast-forwarding on server.

ssh ip 'echo $"[receive]
    denyDeletes = false
    denyNonFastForwards = false" >> /path/to/repo/config'
#then git push -f origin master