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Re: [ts-7000] Re: TS7200 tsLinux howto allow apache to kill a process

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Subject: Re: [ts-7000] Re: TS7200 tsLinux howto allow apache to kill a process
From: Jim Jackson <>
Date: Thu, 25 Feb 2010 22:25:58 +0000 (GMT)

On Thu, 25 Feb 2010, Jim Jackson wrote:

> There is obviously some confusion here. If it is my understanding then
> of what you are trying to do I apologise, but you'll have to spell things
> out in more detail.

I should have fully read further down :-)

>>> To find out which user is running use the 'id' command. Your userid number
>>> is more embedded than some noddy environment variable :-)
>>
>> Good point - I'd not thought of using id. In the end another noddy
>> environment variable came to my aid ;)
>>
>> When stared via the webif - QUERY_STRING is set. So I made use of that:
>>
>> 'start')
>>      echo "Starting up pnp..."
>>        if [ -n "$QUERY_STRING" ]; then
if [ `id -u` = "0" ]; then

would make this more general. You could use this from the command line as 
nobody then as well.

>>                /usr/sbin/pnp -c /etc/pnp.ini -l /var/log/pnp.log -d 2 
>> >/dev/null &
>>        else
>>                su -c "/usr/sbin/pnp -c /etc/pnp.ini -l /var/log/pnp.log -d 2 
>> >/dev/null &" nobody
>>        fi
>>      ;;
>>
>> Thanks again for your help Jim.
>>
>>
>>>
>>>
>>>>
>>>> Still stuck with my original proplem ...
>>>>
>>>>
>>>> --- In  "Ian" <colecian@> wrote:
>>>>>
>>>>> Hi Jim,
>>>>>
>>>>> excellent advice. su is indeed present.
>>>>>
>>>>> I had to change /etc/passwd to give 'nobody' a shell.
>>>>>
>>>>> then
>>>>>
>>>>> su - c "some command" nobody
>>>>>
>>>>> worked. And the web interface stops it ok.
>>>>>
>>>>> Thanks for your help.
>>>>>
>>>>> Ian
>>>>>
>>>>> --- In  Jim Jackson <jj@> wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Wed, 24 Feb 2010, Ian wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I have an app that's started via /etc/init.d on tsLinux from the 
>>>>>>> embedded
>>>>>>> flash
>>>>>>>
>>>>>>> I also have a web interface to start/stop this process. But after a
>>>>>>> reboot the apache 'nobody' user can't kill the process as its been
>>>>>>> started by root.
>>>>>>>
>>>>>>> once stopped by root. the web interface works as expected.
>>>>>>>
>>>>>>> I thought about putting sudo onto the tsLinux but it looks a bit heavy
>>>>>>> resource wise - and my initial hacks left it failing to do a reverse
>>>>>>> lookup and with pam broken.
>>>>>>
>>>>>> Isn't "su" on the TSlinux image? Make your init.d script use this to 
>>>>>> start
>>>>>> you app running as user nobobdy and then your apache app will be able to
>>>>>> kill it.
>>>>>>
>>>>>>>
>>>>>>> Does anyone have a solution to this?
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> Ian
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>
>>
>>
>>
>


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