[Samba] Can't get 'root preexec' to run

[Ole Traupe]

Am 20.10.2015 um 11:01 schrieb L.P.H. van Belle:
> You tried the pam module mkhomedir ?
>
> And have your tried :
> root preexec = "/usr/local/samba/scripts/createzfshome.sh %U"
> or
> root preexec = /usr/local/samba/scripts/createzfshome.sh "%U"

The latter, with and without quotes around the %U.

>
> Is the homedir on a NFS mounted dir? Exports correctly set?

The base dir for the homes is a zfs data set shared via Samba 4 and 
mounted as cifs to /home on the domain member server (CentOS 6.7). I 
also tried the log-on on a Windows 7 client, so the user home was 
addressed as \\server\homebase\userhome in the "Profile" tab of the user 
properties in the MS ADUC console.

As I initially wanted to create a (nested) zfs data set via a 
"preexec"-invoked script, I haven't tried the mkhomedir pam module.

The thing is, that my preexec parameter is not working at all, and that 
primarily I want to find out, why that is - under what circumstances it 
should work and what interferes with it.

Plus: if I can't get it to work, I can't use nested data sets in a 
proper manner, and thus will revert to simple subfolders of the home 
base dir \\server\homebase (which Samba creates just fine).

Anyways, thanks for you help, Louis!



>
>
>
> Greetz,
>
> Louis
>
>
>> -----Oorspronkelijk bericht-----
>> Van: samba [mailto:samba-bounces at lists.samba.org] Namens Ole Traupe
>> Verzonden: dinsdag 20 oktober 2015 10:36
>> Aan: samba at lists.samba.org
>> Onderwerp: Re: [Samba] Can't get 'root preexec' to run
>>
>> Meanwhile I managed to search the thread titles of the last 5 years
>> manually for "preexec". Is there a better solution for accessing the
>> archive of this list?
>> --
>>
>> Still I can't get the DC's [homes] section's 'preexec' command to run on
>> user logon (on one of the domain member PCs). Selinux on the DC is off,
>> of course. I also tried the log-on on a Win7 domain member instead of
>> linux, but still no sign of the script running: my log file is not
>> created; zfs data sets neither. I made sure that the log file is created
>> even if zfs data set creation fails to some reason.
>>
>> What might be interfering with this? I read the explanation of the
>> 'preexec' command in the manpages but there is no direct reference to
>> its use in the [homes] section.
>>
>> Even remote ideas would be most welcome!
>>
>> Ole
>>
>>
>> Am 15.10.2015 um 12:05 schrieb Ole Traupe:
>>> Hi,
>>>
>>> I am trying to automatically create nested zfs data sets as home
>>> directories. I have a script that works fine if I execute it manually
>>> as root (auth via public key). It also creates a short log file in the
>>> same dir.
>>>
>>> However, this section in my smb.conf (on the DC) doesn't seem to
>>> execute (no data set created, no log file) on user logon (on a member
>>> server):
>>>
>>> [homes]
>>>         comment = User Home Directories
>>>         browseable = no
>>>         writable = yes
>>>         root preexec = /usr/local/samba/scripts/createzfshome.sh %U
>>>
>>> What might be the reason? Is this conflicting with rfc2307 use?
>>>
>>> My DC's Samba version is 4.2.2 (on CentOS 6.7), my Samba member server
>>> (where the logon happens; either via ssh or with FreeNX terminal
>>> software) is Version 3.6.23.
>>>
>>> Is Samba 3 a problem here?
>>>
>>> Best,
>>> Ole
>>>
>>> --
>>>
>>> Dr. Ole Traupe
>>> Lab Manager
>>>
>>> Technische Universität Berlin
>>>
>>>
>>>
>>
>>
>>
>>
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>
>