[Samba] Upgraded > Samba no longer listening on 192.168.0.x

Wed May 17 10:17:13 UTC 2017

Hello

Since I last ran "apt-get upgrade" on a Debian host which upgraded Debian to
8.8 and Samba to 4.2.14, Samba is no longer listening on the 192.168.0.x
network after waking up from suspend mode. As a result, it's not listed in
Windows' Network Neighborhood and, thus, not reachable from a Windows host
where a backup job is running that uses the Debian host as a file server.

Samba runs as a stand-alone server at home, and is only used to share a
directory, with write access; It handles no printer. This computer only has
one Ethernet card, and is scheduled to wake up and go back to sleep every
day with enough time to be used to run the backup job.

Running "/etc/init.d/samba restart" does solve the problem but I must find
the root of the problem and solve it accordingly.

Here's what /var/log/syslog says when I run the init.d script; Notice the
"At this time the 'samba' binary should only be used for either" at the end:
==========
May 17 11:56:02 debian systemd[1]: Stopping LSB: start Samba NetBIOS
nameserver (nmbd)...
May 17 11:56:02 debian nmbd[719]: [2017/05/17 11:56:02.577041,  0]
../source3/nmbd/nmbd.c:58(terminate)
May 17 11:56:02 debian nmbd[719]:   Got SIGTERM: going down...
May 17 11:56:03 debian nmbd[1373]: Stopping NetBIOS name server: nmbd.
May 17 11:56:03 debian systemd[1]: Starting LSB: start Samba NetBIOS
nameserver (nmbd)...
May 17 11:56:07 debian nmbd[1377]: Starting NetBIOS name server: nmbd.
May 17 11:56:07 debian systemd[1]: Started LSB: start Samba NetBIOS
nameserver (nmbd).
May 17 11:56:07 debian nmbd[1389]: [2017/05/17 11:56:07.186384,  0]
../lib/util/become_daemon.c:124(daemon_ready)
May 17 11:56:07 debian nmbd[1389]:   STATUS=daemon 'nmbd' finished starting
up and ready to serve connections
May 17 11:56:07 debian systemd[1]: Stopping LSB: start Samba SMB/CIFS daemon
(smbd)...
May 17 11:56:07 debian smbd[763]: [2017/05/17 11:56:07.320366,  0]
../lib/util/pidfile.c:153(pidfile_unlink)
May 17 11:56:07 debian smbd[763]:   Failed to delete pidfile
/var/run/samba/smbd.pid. Error was No such file or directory
May 17 11:56:08 debian smbd[1417]: Stopping SMB/CIFS daemon: smbd.
May 17 11:56:08 debian systemd[1]: Starting LSB: start Samba SMB/CIFS daemon
(smbd)...
May 17 11:56:09 debian smbd[1423]: Starting SMB/CIFS daemon: smbd.
May 17 11:56:09 debian systemd[1]: Started LSB: start Samba SMB/CIFS daemon
(smbd).
May 17 11:56:09 debian smbd[1432]: [2017/05/17 11:56:09.360728,  0]
../lib/util/become_daemon.c:124(daemon_ready)
May 17 11:56:09 debian smbd[1432]:   STATUS=daemon 'smbd' finished starting
up and ready to serve connections
May 17 11:56:09 debian systemd[1]: Stopping LSB: start Samba daemons for the
AD DC...
May 17 11:56:10 debian samba-ad-dc[1461]: Stopping Samba AD DC daemon:
samba.
May 17 11:56:10 debian systemd[1]: Starting LSB: start Samba daemons for the
AD DC...
May 17 11:56:11 debian systemd[1]: Started LSB: start Samba daemons for the
AD DC.
May 17 12:02:19 debian crontab[1516]: (root) LIST (root)
May 17 12:02:39 debian kernel: [ 7713.661907] perf interrupt took too long
(5003 > 5000), lowering kernel.perf_event_max_sample_rate to 25000
May 17 12:03:30 debian samba[1521]: [2017/05/17 12:03:30.212614,  0]
../source4/smbd/server.c:370(binary_smbd_main)
May 17 12:03:30 debian samba[1521]:   samba version 4.2.14-Debian started.
May 17 12:03:30 debian samba[1521]:   Copyright Andrew Tridgell and the
Samba Team 1992-2014
May 17 12:03:30 debian samba[1522]: [2017/05/17 12:03:30.650332,  0]
../source4/smbd/server.c:475(binary_smbd_main)
May 17 12:03:30 debian samba[1522]:   At this time the 'samba' binary should
only be used for either:
May 17 12:03:30 debian samba[1522]:   'server role = active directory domain
controller' or to access the ntvfs file server with 'server services = +smb'
or the rpc proxy with 'dcerpc endpoint servers = remote'
May 17 12:03:30 debian samba[1522]:   You should start smbd/nmbd/winbindd
instead for domain member and standalone file server tasks
May 17 12:03:30 debian samba[1522]: [2017/05/17 12:03:30.650724,  0]
../lib/util/become_daemon.c:111(exit_daemon)
May 17 12:03:30 debian samba[1522]:   STATUS=daemon failed to start: Samba
detected misconfigured 'server role' and exited. Check logs for details,
error code 22
==========

This is the smb.conf I wrote:
==========
[global]
workgroup = WORKGROUP
;netbios name = LINUX

log level = 2

;this avoids needless errors in the logs if you have no printer
printcap name = /dev/null
load printers = no
printing = bsd

security = user
hosts allow = 127.0.0.1 192.168.0.0/24
hosts deny = 0.0.0.0/0
bind interfaces only = yes

map to guest = bad user

;Sheevaplug
wins server = 192.168.0.15

[write]
path = /BackupFromWindows7
guest ok = yes
writeable=yes
browseable=yes
==========

And I notice that Samba mentions "samba-ad-dc" when running the init.d
script:
==========
root at debian:~# /etc/init.d/samba restart
[ ok ] Restarting nmbd (via systemctl): nmbd.service.
[ ok ] Restarting smbd (via systemctl): smbd.service.
[ ok ] Restarting samba-ad-dc (via systemctl): samba-ad-dc.service.
==========

It used to work fine before upgrading: Do I need to change something in
smb.conf? And should I run add a Cron job to run the init.d script after the
computer wakes up?

Thank you.

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