adduser ubuntu usermod -aG sudo ubuntu cd /home/ubuntu/ mkdir .ssh chmod 700 .ssh chown ubuntu:ubuntu .ssh cp -a /root/.ssh/authorized_keys . #or make a new key chmod 600 authorized_keys chown ubuntu:ubuntu authorized_keys # Can update password: passwd ubuntu # Can delete password: passwd -d ubuntu # backup /etc/ssh/sshd_config now # if it doesn't work, set these properties in /etc/ssh/sshd_config: # commented out options show the defaults, e.g. #UsePAM yes UsePAM no AuthorizedKeysFile %h/.ssh/authorized_keys PubkeyAuthentication yes PasswordAuthentication no ChallengeResponseAuthentication no service ssh restart # Make sure the correct shell is set for the user here: nano /etc/passwd