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[Markus <1792400@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Setup: install smbd in host and lxd-container.

Now restart smbd in host:

service smbd restart
All is OK.
Problem: nmap shows "closed" on ports 139 and 445. And users cannot use smbd server in host.

  ● smbd.service - LSB: start Samba SMB/CIFS daemon (smbd)
   Loaded: loaded (/etc/init.d/smbd; bad; vendor preset: enabled)
   Active: active (exited) since Die 2016-10-18 17:35:23 CEST; 2s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 24218 ExecStop=/etc/init.d/smbd stop (code=exited, status=0/SUCCESS)
  Process: 21980 ExecReload=/etc/init.d/smbd reload (code=exited, status=0/SUCCESS)
  Process: 25190 ExecStart=/etc/init.d/smbd start (code=exited, status=0/SUCCESS)

Okt 18 17:35:22 speedy systemd[1]: Starting LSB: start Samba SMB/CIFS daemon (smbd)...
Okt 18 17:35:23 speedy smbd[25190]:  * Starting SMB/CIFS daemon smbd
Okt 18 17:35:23 speedy smbd[25190]:    ...done.
Okt 18 17:35:23 speedy systemd[1]: Started LSB: start Samba SMB/CIFS daemon (smbd).


ps axf | grep smbd:

25356 pts/2    S+     0:00  |   \_ grep --color=auto smbd
19915 ?        Ss     0:08      \_ /usr/sbin/smbd -D
19919 ?        S      0:00          \_ /usr/sbin/smbd -D

However, netstat -tpln | grep "smbd" returns nothing and also nmap shows
"closed" on ports 139 and 445.


Workaround:
change /etc/init.d/smbd:
 if ! start-stop-daemon --start --quiet --oknodo --exec /usr/sbin/smbd -- -D ; then

to

 if ! start-stop-daemon --start --quiet --oknodo --pidfile
/var/run/samba/smbd.pid --exec /usr/sbin/smbd -- -D ; then

I reported this to:
https://discuss.linuxcontainers.org/t/samba-in-host-and-container/2523

apt-cache policy samba
samba:
  Installed: 2:4.3.11+dfsg-0ubuntu0.16.04.15
  Candidate: 2:4.3.11+dfsg-0ubuntu0.16.04.16
  Version table:
     2:4.3.11+dfsg-0ubuntu0.16.04.16 500
        500 http://de.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
 *** 2:4.3.11+dfsg-0ubuntu0.16.04.15 500
        500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages
        100 /var/lib/dpkg/status
     2:4.3.8+dfsg-0ubuntu1 500
        500 http://de.archive.ubuntu.com/ubuntu xenial/main amd64 Packages

** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: lxd samba smb

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https://bugs.launchpad.net/bugs/1792400

Title:
  smbd failed in host when both lxd container and host have smbd

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