Git: Rolling back a remote repository

I have a remote git repository, and I need to roll back the last n commits into cold oblivion.

From stackoverflow

• You can use git revert for all the n commits, and then push as usual.

  Or you can git reset --hard HEAD~n and "git push -f", but that is not good for shared repositories, as you will break others work based on your branch.

  elmarco : I am glad it was clear enough :) thanks

• elmarco is correct... his suggestion is the best for shared/public repositories (or, at least public branches). If it wasn't shared (or you're willing to disrupt others) you can also push a particular ref:

  
  git push origin old_master:master
  

  Or, if there's a particular commit SHA1 (say 1e4f99e in abbreviated form) you'd like to move back to:

  
  git push origin 1e4f99e:master
  

  robertpostill : Great point about the SHA as a reference point!