@Keneda Yes you are right, pleae apologizy the misprint, it should be service ... Summarizing the procedure is as shown in https://docs.ubports.com/en/latest/userguide/advanceduse/ssh.html: chmod 700 /home/phablet/.ssh chmod 600 /home/phablet/.ssh/authorized_keys chown -R phablet:phablet /home/phablet/.ssh and after this modification, stop and restart of the ssh-server sudo service ssh stop sudo service ssh start systemctl status ssh