[Mailman-Users] [install] set-gid bit

[dave at umiacs.umd.edu]

On Thu, 26 May 2005, Peter Schnitzler wrote:

>
> Am 25.05.2005 um 16:13 schrieb dave at umiacs.umd.edu:
>
>> On Wed, 25 May 2005, Peter Schnitzler wrote:
>> 
>>> when i go there i get the following output:
>>> 
>>> [portal mailman]$ df -k
>>> Filesystem           1k-blocks      Used Available Use% Mounted on
>>> /dev/hda1               743371    679010     64361  92% /
>>> /dev/hda3               198275     43625    154650  23% /var
>>> /dev/hda4             17673711   2878405  14795306  17% /home
>>> 
>>> So this says that it is not a NFS/automount problem?
>>> 
>>> 
>> That's what it sounds like. To test, create a script with sgid and
>> see if indeed it works eg
>> echo "#!/bin/sh">/home/sites/mytest
>> echo "touch /tmp/myfile">>/home/sites/mytest
>> chgrp mailman /home/sites/mytest
>> chmod 2755 /home/sites/mytest
>> 
>> /home/sites/mytest
>> 
>> and see if  /tmp/myfile gets a group ownership of mailman
>
>
> i get the following output:
>
> -rw-rw-r--    1 portal   root            0 May 26 14:57 myfile
>
> after I did:
>
> [portal portal]$ echo "#!/bin/sh">/home/sites/mytestecho "#!/bin/sh">/ 
> home/sites/mytest
> [portal portal]$
> [portal portal]$ echo "/bin/sh">/home/sites/www.afser.de/users/portal/mytest
> [portal portal]$ echo '#!/bin/sh'>/home/sites/www.afser.de/users/ 
> portal/mytest
> [portal portal]$ echo "touch /tmp/myfile">>/home/sites/www.afser.de/ 
> users/portal/mytest
> [portal portal]$ chgrp site76 /home/sites/www.afser.de/users/portal/mytest
> [portal portal]$
> [portal portal]$ chmod 2755 /home/sites/www.afser.de/users/portal/mytest
> [portal portal]$ /home/sites/www.afser.de/users/portal/mytest
>
>
> So I guess it did not work?
>

Since the above may have gotten munged in the translation, check that mytest
looks something like this:
rwxr-sr-x   1 portal  site76       28 May 25 02:39 mytest*

ie group ownership of site76 and the "s" in the group bits indicating sgid.
If so, and the resultant output file, "myfile" does not have a group ownership
of site76, then it looks like you can't sgid on your system for whatever reason
(but not NFS/autofs as this is a local fs). Time to talk to your friendly
sysadmin.



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  David Stern                                    University of Maryland
            Institute for Advanced Computer Studies