changing the /etc/ssh/sshd_config file

[wetherallCode]

I have tried this a few times, but for video 28, the last thing that is done is to change the /etc/ssh/sshd_config file. When I do this the way you've explained in the video and on this repo, I can't get into my root@<ip_name>. The prompt says "Permission denied (publickey)". I've tried it twice doing exactly what is demonstrated, but the same thing each time. What should I do?