If you’d like to enable SSH for other users, SSH in as root, and edit the file /etc/passwd
the default shell setting /sbin/nologin won’t be able to log in via SSH.
change to /bin/sh
source:
http://techanic.net/2014/04/12/configuring_ssh_and_scp_sftp_on_dsm_5.0_for_synology_diskstations.html
