[Samba] samba4 stopped working

[Gary Dale]

I've been using Samba4 on Debian/Jessie since it became "stable". After
the last upgrade however, I got a massive failure.

The first symptom I noticed was that I couldn't grab updates from the
Debian servers. However when clients tried to log in, the real problem
revealed itself. They could only log on using a temporary profile and
couldn't connect to any of the shares or printers.

When I test my implementation of Samba, it fails the basic test:

# smbclient -L localhost -U%
Connection to localhost failed (Error NT_STATUS_CONNECTION_REFUSED)

The globals section of smb.conf is:

[global]
workgroup = DENTALOFFICE
realm = DENTALOFFICE.ROSSLAND.DENTAL
netbios name = MOLAR
server role = active directory domain controller
dns forwarder = 8.8.8.8
idmap_ldb:use rfc2307 = yes
allow dns updates = nonsecure

which explains why I can't get to the Debian servers. The hand off to
Google's DNS servers never happens.

ps aux | grep nmbd, smbd or samba all show that samba isn't running.
The logs for starting samba show:

[2016/07/04 11:29:48.240042, 0]
../source4/smbd/server.c:370(binary_smbd_main)
samba version 4.2.10-Debian started.
Copyright Andrew Tridgell and the Samba Team 1992-2014
[2016/07/04 11:29:48.421540, 0]
../source4/smbd/server.c:488(binary_smbd_main)
samba: using 'standard' process model
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.
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.
samba: setproctitle not initialized, please either call
setproctitle_init() or link against libbsd-ctor.
[2016/07/04 11:29:48.446253, 0]
../lib/util/become_daemon.c:124(daemon_ready)
STATUS=daemon 'samba' finished starting up and ready to serve connections
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.
[2016/07/04 11:29:48.460701, 0]
../lib/util/util_runcmd.c:324(samba_runcmd_io_handler)
/usr/sbin/winbindd: Failed to exec child - No such file or directory
[2016/07/04 11:29:48.462580, 0]
../source4/winbind/winbindd.c:49(winbindd_done)
winbindd daemon exited normally
task_server_terminate: [winbindd child process exited]
[2016/07/04 11:29:48.464159, 0]
../source4/smbd/server.c:211(samba_terminate)
samba_terminate: winbindd child process exited


Although the message about the daemon being ready seems to indicate that
samba is running, as I said, ps aux shows that it isn't.

Any ideas how I can get Samba back up? Uninstalling and reinstalling it
didn't work.

[Gary Dale]

Post by Gary Dale
I've been using Samba4 on Debian/Jessie since it became "stable".
After the last upgrade however, I got a massive failure.
The first symptom I noticed was that I couldn't grab updates from the
Debian servers. However when clients tried to log in, the real problem
revealed itself. They could only log on using a temporary profile and
couldn't connect to any of the shares or printers.
# smbclient -L localhost -U%
Connection to localhost failed (Error NT_STATUS_CONNECTION_REFUSED)
[global]
workgroup = DENTALOFFICE
realm = DENTALOFFICE.ROSSLAND.DENTAL
netbios name = MOLAR
server role = active directory domain controller
dns forwarder = 8.8.8.8
idmap_ldb:use rfc2307 = yes
allow dns updates = nonsecure
which explains why I can't get to the Debian servers. The hand off to
Google's DNS servers never happens.
ps aux | grep nmbd, smbd or samba all show that samba isn't running.
[2016/07/04 11:29:48.240042, 0]
../source4/smbd/server.c:370(binary_smbd_main)
samba version 4.2.10-Debian started.
Copyright Andrew Tridgell and the Samba Team 1992-2014
[2016/07/04 11:29:48.421540, 0]
../source4/smbd/server.c:488(binary_smbd_main)
samba: using 'standard' process model
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.
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.
samba: setproctitle not initialized, please either call
setproctitle_init() or link against libbsd-ctor.
[2016/07/04 11:29:48.446253, 0]
../lib/util/become_daemon.c:124(daemon_ready)
STATUS=daemon 'samba' finished starting up and ready to serve connections
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.
[2016/07/04 11:29:48.460701, 0]
../lib/util/util_runcmd.c:324(samba_runcmd_io_handler)
/usr/sbin/winbindd: Failed to exec child - No such file or directory
[2016/07/04 11:29:48.462580, 0]
../source4/winbind/winbindd.c:49(winbindd_done)
winbindd daemon exited normally
task_server_terminate: [winbindd child process exited]
[2016/07/04 11:29:48.464159, 0]
../source4/smbd/server.c:211(samba_terminate)
samba_terminate: winbindd child process exited
Although the message about the daemon being ready seems to indicate
that samba is running, as I said, ps aux shows that it isn't.
Any ideas how I can get Samba back up? Uninstalling and reinstalling
it didn't work.

Turns out that winbind was a different version than libwinb... Somehow
it got dropped from the upgrade. Installing winbind brought in the
current version then restarting samba got things going again.

[Gary Dale]

Post by Gary Dale
I've been using Samba4 on Debian/Jessie since it became "stable".
After the last upgrade however, I got a massive failure.
The first symptom I noticed was that I couldn't grab updates from the
Debian servers. However when clients tried to log in, the real
problem revealed itself. They could only log on using a temporary
profile and couldn't connect to any of the shares or printers.
# smbclient -L localhost -U%
Connection to localhost failed (Error NT_STATUS_CONNECTION_REFUSED)
[global]
workgroup = DENTALOFFICE
realm = DENTALOFFICE.ROSSLAND.DENTAL
netbios name = MOLAR
server role = active directory domain controller
dns forwarder = 8.8.8.8
idmap_ldb:use rfc2307 = yes
allow dns updates = nonsecure
which explains why I can't get to the Debian servers. The hand off to
Google's DNS servers never happens.
ps aux | grep nmbd, smbd or samba all show that samba isn't running.
[2016/07/04 11:29:48.240042, 0]
../source4/smbd/server.c:370(binary_smbd_main)
samba version 4.2.10-Debian started.
Copyright Andrew Tridgell and the Samba Team 1992-2014
[2016/07/04 11:29:48.421540, 0]
../source4/smbd/server.c:488(binary_smbd_main)
samba: using 'standard' process model
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.
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.
samba: setproctitle not initialized, please either call
setproctitle_init() or link against libbsd-ctor.
[2016/07/04 11:29:48.446253, 0]
../lib/util/become_daemon.c:124(daemon_ready)
STATUS=daemon 'samba' finished starting up and ready to serve connections
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.
[2016/07/04 11:29:48.460701, 0]
../lib/util/util_runcmd.c:324(samba_runcmd_io_handler)
/usr/sbin/winbindd: Failed to exec child - No such file or directory
[2016/07/04 11:29:48.462580, 0]
../source4/winbind/winbindd.c:49(winbindd_done)
winbindd daemon exited normally
task_server_terminate: [winbindd child process exited]
[2016/07/04 11:29:48.464159, 0]
../source4/smbd/server.c:211(samba_terminate)
samba_terminate: winbindd child process exited
Although the message about the daemon being ready seems to indicate
that samba is running, as I said, ps aux shows that it isn't.
Any ideas how I can get Samba back up? Uninstalling and reinstalling
it didn't work.

What version did you upgrade from and what is the version now ?
You could try installing 'winbind', this seems to be your problem
'/usr/sbin/winbindd: Failed to exec child - No such file or directory'
Earlier versions of Samba4 running as a DC used 'winbind' built into
the 'samba' binary, later versions use the separate 'winbindd' binary
instead.
Rowland

It turned out that libwbclient was a later version than winbind.
Installing winbind fixed the problem. Somehow winbind got left out of
the upgrade despite there being a more recent version on Debian's servers.