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I’ve fixed the issue by adding the following lines:
chmod 755 /home/ftphtml/.ssh/ chmod 644 /home/ftphtml/.ssh/authorized_keys
But WHY is ALL that necessary just to login using a new SSH user? Shouldn’t DO droplets’ default settings make it easier for us? This is the full list of instructions allow an existing user to SSH:
cp /root/.ssh/authorizedkeys /home/ftphtml/.ssh/authorizedkeys nano /etc/ssh/sshdconfig Added: AllowUsers ftphtml root Uncommented: AuthorizedKeysFile %h/.ssh/authorizedkeys chmod 755 /home/ftphtml/.ssh/ chmod 644 /home/ftphtml/.ssh/authorized_keys service ssh restart