[root@nas ~]# systemctl status -l smb nmb.
● smb.service - Samba SMB Daemon
   Loaded: loaded (/etc/systemd/system/smb.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Wed 2016-01-27 22:03:00 EST; 3min 21s ago
  Process: 15734 ExecStart=/usr/sbin/smbd $SMBDOPTIONS (code=exited, status=1/FAILURE)
 Main PID: 15734 (code=exited, status=1/FAILURE)

Jan 27 22:03:00 nas systemd[1]: Starting Samba SMB Daemon...
Jan 27 22:03:00 nas smbd[15734]: /usr/sbin/smbd: /usr/lib64/samba/libndr-samba4.so: version `SAMBA_4.1.12' not found (required by /usr/lib64/samba/libsmbd_base.so)
Jan 27 22:03:00 nas systemd[1]: smb.service: main process exited, code=exited, status=1/FAILURE
Jan 27 22:03:00 nas systemd[1]: Failed to start Samba SMB Daemon.
Jan 27 22:03:00 nas systemd[1]: Unit smb.service entered failed state.
Jan 27 22:03:00 nas systemd[1]: smb.service failed.

● nmb..service
   Loaded: not-found (Reason: No such file or directory)
   Active: inactive (dead)