Hi again,
I had to abandon this project for a while and didn't want to respond until I had a chance to set this up and try it.
So I already had my key set up and use it already to sign in. When I tried to turn off password login, I found that I can't write to the \etc\ssh\sshd_config file as it's read-only. If I've read correctly, I cloned that file to ~/.ssh/config and made 3 adjustments.
Port xxxx
PasswordAuthentication no
ChallengeResponseAuthentication no
As you may have guessed, I no longer have access as it appears you can not change the default port. I read that it's good practice to not use the default port, so I never thought I wouldn't be able to do so. I also have the firewall turned off, so I didn't think it would be an issue.
I'm assuming this is the issue at least. All attempts to ssh in is greeted with "connection refused"
I can't seem to find a way back in and wondered if someone could help me without having to lose all of the settings I've configured so far.
Thanks!