On 10/27/2016 01:44 PM, Alex wrote:
> Hi,
> 
> On Thu, Oct 27, 2016 at 4:09 PM, Gordon Messmer
> <gordon.mess...@gmail.com> wrote:
>> On 10/25/2016 06:53 PM, Alex wrote:
>>>
>>> The problem I was having
>>> was with the user doing local modifications (joomadmin) not being able
>>> to modify files uploaded or changed by the joomla apache user
>>> (apache).
>>>
>>> Numerous suggestions were made, including changing all the files to be
>>> sgid write, adding the users to a common group, and other, more
>>> complicated recommendations.
>>>
>>> I'm really surprised at the state of security by many of these
>>> suggestions.
>>
>>
>> First, add the joomlaadmin to the apache group:
>> # usermod -a -G apache joomadmin
>>
>> Second, change the apache umask.  Use "systemctl edit httpd" and enter two
>> lines in the editor that opens:
>> [Service]
>> UMask=0002
>>
>> Third, restart the httpd service with "systemctl restart httpd"
>>
>> There you go.  httpd will create files that are writable by the group
>> apache, and joomadmin is a member of that group, so it can modify those
>> files.  You haven't given apache any new permissions.
>>
>> I have tested this specific process on Fedora 24.
> 
> I've actually already done these exact steps, and it doesn't work (on
> fedora23). When you say you've tested it, do you mean you tested the
> steps above, or you did something to confirm afterwards that its umask
> is 0002?
> 
> # cat /etc/systemd/system/httpd.service.d/override.conf
> [Service]
> UMask=0002
> # systemctl restart httpd
> # su - apache -s /bin/bash
> -bash-4.3$ umask
> 0022

Alex, the change to the override.conf file affects ONLY the httpd
_process_ started by systemd. It does NOT change the umask for the
apache _user_ (which is what you tested).

To only way to verify the change "took" is to have the httpd process
create a file and check the mode of the file created.
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- Rick Stevens, Systems Engineer, AllDigital    ri...@alldigital.com -
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