Debian – smbclient: Connection to localhost failed (Error NT_STATUS_CONNECTION_REFUSED)

until yesterday I had a functioning Active Directory Primary Domain Controller running on a raspberry pi. Now it seems I cannot get the 'samba' service to listen at all. This is since performing an upgrade.

root@r2d2:/etc#  /etc/init.d/samba start
[ ok ] Starting nmbd (via systemctl): nmbd.service.
[ ok ] Starting smbd (via systemctl): smbd.service.
[ ok ] Starting samba-ad-dc (via systemctl): samba-ad-dc.service.
root@r2d2:/etc#

That looks fine, I suppose but smbclient -L localhost -U% gives the error message quoted in the title.

I have been googling this for a while and am unsure what the issue is. I have imported a (replacement) startup script, but apart from that I have made no changes.

The underlying issue is, I think, in the startup/init.d procedures, but I do not know what to do next.

root@r2d2:/etc# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:5910          0.0.0.0:*               LISTEN      804/Xvnc
tcp        0      0 127.0.0.1:3350          0.0.0.0:*               LISTEN      734/xrdp-sesman
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      547/sshd
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      543/cupsd
tcp        0      0 0.0.0.0:3389            0.0.0.0:*               LISTEN      612/xrdp
tcp6       0      0 :::80                   :::*                    LISTEN      644/apache2
tcp6       0      0 :::22                   :::*                    LISTEN      547/sshd
tcp6       0      0 ::1:631                 :::*                    LISTEN      543/cupsd 
root@r2d2:/etc#

I am using internal DNS.

I notice the following, and this gets to the crux of my confusion – googling the issue did not make it easy to establish how one should start samba

log.smbd

[2016/05/17 09:56:52.566097,  2] ../source3/lib/interface.c:341(add_interface)
  added interface eth0 ip=169.254.144.46 bcast=169.254.255.255 netmask=255.255.0.0
[2016/05/17 09:56:52.566286,  2] ../source3/lib/interface.c:341(add_interface)
  added interface eth0 ip=10.10.10.32 bcast=10.10.10.255 netmask=255.255.255.0
[2016/05/17 09:56:52.566510,  0] ../source3/smbd/server.c:1297(main)
  server role = 'active directory domain controller' not compatible with running smbd standalone.
  You should start 'samba' instead, and it will control starting smbd if required

log.nmbd

root@r2d2:/var/log/samba# cat log.nmbd
[2016/05/17 09:56:19,  0] ../source3/nmbd/nmbd.c:908(main)
  nmbd version 4.2.10-Debian started.
  Copyright Andrew Tridgell and the Samba Team 1992-2014
[2016/05/17 09:56:19,  0] ../lib/param/loadparm.c:743(lpcfg_map_parameter)
  Unknown parameter encountered: "password level"
[2016/05/17 09:56:19,  0] ../lib/param/loadparm.c:1626(lpcfg_do_global_parameter)
  Ignoring unknown parameter "password level"
[2016/05/17 09:56:19,  0] ../lib/param/loadparm.c:743(lpcfg_map_parameter)
  Unknown parameter encountered: "update encrypted"
[2016/05/17 09:56:19,  0] ../lib/param/loadparm.c:1626(lpcfg_do_global_parameter)
  Ignoring unknown parameter "update encrypted"
root@r2d2:/var/log/samba#

I am currently using this startup script (which I added after the problems began) and this seems to result in a new (note the timestamps do not overlap with the 2 previous snippets) log.samba file containing :

samba: setproctitle not initialized, please either call setproctitle_init() or link against libbsd-ctor.
samba: setproctitle not initialized, please either call setproctitle_init() or link against libbsd-ctor.
samba: setproctitle not initialized, please either call setproctitle_init() or link against libbsd-ctor.
samba: setproctitle not initialized, please either call setproctitle_init() or link against libbsd-ctor.
[2016/05/17 13:18:22.069201,  0] ../lib/util/util_runcmd.c:324(samba_runcmd_io_handler)
  /usr/sbin/winbindd: Failed to exec child - No such file or directory
[2016/05/17 13:18:22.070100,  0] ../source4/winbind/winbindd.c:49(winbindd_done)
  winbindd daemon exited normally
task_server_terminate: [winbindd child process exited]
[2016/05/17 13:18:22.074784,  2] ../source4/dsdb/repl/drepl_partitions.c:116(dreplsrv_load_partitions)
  dreplsrv_partition[CN=Configuration,DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.075325,  2] ../source4/dsdb/repl/drepl_partitions.c:116(dreplsrv_load_partitions)
  dreplsrv_partition[CN=Schema,CN=Configuration,DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.075730,  2] ../source4/dsdb/repl/drepl_partitions.c:116(dreplsrv_load_partitions)
  dreplsrv_partition[DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.076810,  2] ../source4/dsdb/repl/drepl_partitions.c:116(dreplsrv_load_partitions)
  dreplsrv_partition[DC=DomainDnsZones,DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.077271,  2] ../source4/dsdb/repl/drepl_partitions.c:116(dreplsrv_load_partitions)
  dreplsrv_partition[DC=ForestDnsZones,DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.084895,  2] ../source4/dsdb/kcc/kcc_service.c:127(kccsrv_load_partitions)
  kccsrv_partition[DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.085188,  2] ../source4/dsdb/kcc/kcc_service.c:127(kccsrv_load_partitions)
  kccsrv_partition[CN=Configuration,DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.085368,  2] ../source4/dsdb/kcc/kcc_service.c:127(kccsrv_load_partitions)
  kccsrv_partition[CN=Schema,CN=Configuration,DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.085508,  2] ../source4/dsdb/kcc/kcc_service.c:127(kccsrv_load_partitions)
  kccsrv_partition[DC=DomainDnsZones,DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.085635,  2] ../source4/dsdb/kcc/kcc_service.c:127(kccsrv_load_partitions)
  kccsrv_partition[DC=ForestDnsZones,DC=longmanrd,DC=infoforum,DC=co,DC=uk] loaded
[2016/05/17 13:18:22.088057,  0] ../lib/util/become_daemon.c:124(daemon_ready)
samba: setproctitle not initialized, please either call setproctitle_init() or link against libbsd-ctor.
  STATUS=daemon 'samba' finished starting up and ready to serve connections
[2016/05/17 13:18:22.094641,  0] ../source4/smbd/server.c:211(samba_terminate)
samba: setproctitle not initialized, please either call setproctitle_init() or link against libbsd-ctor.
  samba_terminate: winbindd child process exited