[Samba] force group does not work

Leander S. info at netocean.de
Sun Feb 9 04:11:31 MST 2014


Am 09.02.14 11:56, schrieb Leander S.:
> Hi
>
> Thanks for your input, but this isn't really a workarround ;/
> At the end of the day, I want to give each share it's own
>
> valid users = @Groupname
> force user  = Username(=Groupname)
> force group = Groupname
>
> This makes permission management way easier, since users could just be 
> added or removed from the  Groupname in order to get permission on the 
> share.
>
> Also I don't need a cronjob, which sooner or later kills my HDDs, 
> doing a periodic chmod -R and chown -R over all files. (This is anyway 
> not a profeesional solution in my opinion)
>
>
> My question is more likely: What am I missing in my config to make my 
> setup work? Am I using the wrong syntax at some place, or what? This 
> is quite frustrating ;)
>
>
>
>
> Am 08.02.14 19:43, schrieb steve:
>> On Sat, 2014-02-08 at 10:35 +0100, Leander S. wrote:
>>> Hi
>>>
>>> I set up a samba 4.1.4 server on the latest FreeBSD RELEASE 10.
>>> Unfortunately it doesn't seem to consider the option force group. After
>>> hours ofresearch I couldn't figure out what I'm still missing. unix
>>> extensions is set to no. Setting the debug level up to 10 also didn't
>>> help ;(
>>> Is this a bug or is there simply a mistake in my setup?
>>>
>>> When
>>> *valid users = @Groupname*
>>> is set, then I don't have access to the share at all anymore.
>>>
>>> As funny as it sounds, but
>>> *force user* **= *MyUsername*
>>> is working as expected.
>>>
>>>
>>> id -Gn MyUsername
>>> MyUsername Groupname
>>>
>>> getent group Groupname
>>> Groupname:*:2004:MyUsername,Groupname
>>>
>>>
>>> # ============= Global ============= #
>>>
>>>       [global]
>>>
>>>        # Basic server settings
>>>        workgroup          = DOMAIN
>>>        realm              = DOMAIN.LOCAL
>>>        netbios name       = FILESERVER
>>>        server role        = standalone server
>>>
>>>        # Password backend
>>>        passdb backend     = samba_dsdb
>>>
>>>        # DNS
>>>        dns forwarder      = 10.0.0.1
>>>
>>>        # Logging
>>>        log level = 2
>>>        max log size = 5000
>>>
>>>        # Charset
>>>        unix charset       = UTF-8
>>>        dos charset        = cp1252
>>>
>>>        # NTLMv2 aktivieren
>>>        ntlm auth          = No
>>>        lanman auth        = No
>>>        client ntlmv2 auth = Yes
>>>
>>>        # Printing
>>>        load printers = No
>>>        printing      = BSD
>>>        printcap name = /dev/null
>>>
>>>        # Default masks
>>>        unix extensions      = No
>> lose these for now:
>>>        create mask          = 0770
>>>        force create mode    = 0770
>>>        directory mask       = 0770
>>>        force directory mode = 0770
>>>
>>>        # Miscellaneous
>>>        veto oplock files  = 
>>> /*.doc/*.xls/*.ppt/*.mdb/*.docx/*.xlsx/*.ppt
>>>
>>>
>>> # ============= Shares ============= #
>>>
>>>       [MyShare]
>>>        comment     = NAS
>>>        path        = /mnt/MyShare
>>>        guest ok    = No
>>>        read only   = No
>>>        valid users = @Groupname
>>>        forece user = MyUsername
>>>        force group = Groupname
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> Any help would be greatly appreciated ;)
>>>
>>> Best Regards
>>> L.
>>>
>>>
>> change this:
>> force user = MyUsername
>> and go for something like:
>> chgrp Groupname /mnt/MyShare
>> chmod g +s /mnt/MyShare
>> maybe?
>> Steve
>>
>>
>

valid users = admin
force user  = admin
force group = @admin

Results in:

*smbclient -U admin \\\\HOSTNAME-01\\DOMAIN <password>*
Domain=[DOMAIN] OS=[Unix] Server=[Samba 4.1.4]
tree connect failed: NT_STATUS_NO_SUCH_GROUP


Yet it exists and is member of:

*id -Gn admin*
admin wheel

*getent group admin*
admin:*:1001


*BUT:*


*wbinfo -u*
HOSTNAME-01\HOSTNAME-01$
HOSTNAME-01\administrator
HOSTNAME-01\krbtgt
HOSTNAME-01\guest
HOSTNAME-01\admin

*wbinfo -g*
HOSTNAME-01\read-only domain controllers
HOSTNAME-01\group policy creator owners
HOSTNAME-01\domain controllers
HOSTNAME-01\domain computers
HOSTNAME-01\domain admins
HOSTNAME-01\domain guests
HOSTNAME-01\domain users



# ========================================================= #

While following setup results in a valid login

   valid users = admin
   force user  = admin
   force group = admin


BUT

ls -lach /mnt/MyShare
[...]
drwxrwxrwx  2 admin *wheel*     2B Feb  9 12:08 TestFolder
[...]

it seems like it falling back to wheel, which is just wrong here ;(




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