My apologies if I am asking the obvious.
I am running Ubuntu 14.04, and have tried to install OPenVPN. I was using the digitalocean tutorial, and got as far as running build-key-server, and it wouldn't let me generate the keys whether I ran it as a user or as root using sudo.
I have trawled the internet for suggestions, and have found nothing to help. Can anyone assist?

If you require more details, please let me know.
Thank you for your help.
