Hey, folks!

I just thought I'd let people know about my rendering farm again.

It's at: http://www.badcheese.com/~steve/povray_form.shtml

I'm using the stock povray 3.1g version.

I've set up some machines to all query my web server and download a job
and render it and then e-mail the finished image back to you.  It's
really cool!

- Steve

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On Fri, 08 Sep 2000 11:01:10 -0600, Space Dude wrote:
>Hey, folks!
>
>I just thought I'd let people know about my rendering farm again.
>
>It's at: http://www.badcheese.com/~steve/povray_form.shtml
>
>I'm using the stock povray 3.1g version.
>
>I've set up some machines to all query my web server and download a job
>and render it and then e-mail the finished image back to you.  It's
>really cool!

This does look good, I might try it some time.  My email address and web
address say it all. 

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Cheers
Steve              email mailto:ste### [at] zeroppsuklinuxnet

%HAV-A-NICEDAY Error not enough coffee  0 pps. 

web http://www.zeropps.uklinux.net/

or  http://start.at/zero-pps

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Your idea is just GREAT!
Have you got any non-standard include files like galaxy.* or lego
library.lib? Could you please list them somewhere? It would be helpful!
Thank you very much for your great work
Albiz

Space Dude <swe### [at] rapucaredu> wrote in message
39B91B56.D303C436@rap.ucar.edu...
> Hey, folks!
>
> I just thought I'd let people know about my rendering farm again.
>
> It's at: http://www.badcheese.com/~steve/povray_form.shtml
>
> I'm using the stock povray 3.1g version.
>
> I've set up some machines to all query my web server and download a job
> and render it and then e-mail the finished image back to you.  It's
> really cool!
>
> - Steve
>
> --
> EMAIL: (h) ste### [at] badcheesecom  WEB: http://badcheese.com/~steve
>        (w) swe### [at] rapucaredu
>            ste### [at] mailcom

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Nope, but you could just append (or prepend) the include files to your
scene file and submit that to the rendering farm.  That kind of thing
should work.

- Steve

darcolo wrote:
> 
> Your idea is just GREAT!
> Have you got any non-standard include files like galaxy.* or lego
> library.lib? Could you please list them somewhere? It would be helpful!
> Thank you very much for your great work
> Albiz
> 
> Space Dude <swe### [at] rapucaredu> wrote in message
> 39B91B56.D303C436@rap.ucar.edu...
> > Hey, folks!
> >
> > I just thought I'd let people know about my rendering farm again.
> >
> > It's at: http://www.badcheese.com/~steve/povray_form.shtml
> >
> > I'm using the stock povray 3.1g version.
> >
> > I've set up some machines to all query my web server and download a job
> > and render it and then e-mail the finished image back to you.  It's
> > really cool!
> >
> > - Steve
> >
> > --
> > EMAIL: (h) ste### [at] badcheesecom  WEB: http://badcheese.com/~steve
> >        (w) swe### [at] rapucaredu
> >            ste### [at] mailcom

--
EMAIL: (h) ste### [at] badcheesecom  WEB: http://badcheese.com/~steve
       (w) swe### [at] rapucaredu
           ste### [at] mailcom

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Space Dude <swe### [at] rapucaredu> wrote:
: I'm using the stock povray 3.1g version.

  You still haven't answered to my warning about security issues.

  Let me put it clear: If you render with pov3.1g anything people send to
you, anyone can do anything he/she likes. It's perfectly possible to, for
example, destroy the entire home directory, get free access for anyone to
your account and so on.

  It can be avoided by filtering the code people send. This, however, may
not be a 100% safe solution since there may be ways of encoding nasty
commands so that they can't be triggered by any filter.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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Warp wrote:
> 
> Space Dude <swe### [at] rapucaredu> wrote:
> : I'm using the stock povray 3.1g version.
> 
>   You still haven't answered to my warning about security issues.
> 
>   Let me put it clear: If you render with pov3.1g anything people send to
> you, anyone can do anything he/she likes. It's perfectly possible to, for
> example, destroy the entire home directory, get free access for anyone to
> your account and so on.
> 
>   It can be avoided by filtering the code people send. This, however, may
> not be a 100% safe solution since there may be ways of encoding nasty
> commands so that they can't be triggered by any filter.

I guess that, at the very least, he has set up a dedicated account to
this system, with specified, limited memory and disk resources. But I
agree this does not solve everything!

-- 

      __  __ __  __  _
|  | /  \  /  / |_  /  |/
\/\/ \__/ /_ /_ |__ \_ |\

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> I guess that, at the very least, he has set up a dedicated account to
> this system, with specified, limited memory and disk resources. But I
> agree this does not solve everything!

I think the web page is designed to give povray a file.pov and a file.ini to
render that's all...  the file.ini is generated by the program and the program
is locked, compiled... and the file.pov?  Ok, give me a file.pov that can erase
all my hard disk!

I've made a file.pov that take like 2 year to render in 1024x768, but if he sees
that, he'd simply kill the prog...

IMO,
	Simon

-- 
+-------------------------+----------------------------------+
| Simon Lemieux           | Website : http://www.666Mhz.net  |
| Email : Sin### [at] 666Mhznet  | POV-Ray, OpenGL, C++ and more... |
+-------------------------+----------------------------------+

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Simon Lemieux <lem### [at] yahoocom> wrote:
: Ok, give me a file.pov that can erase
: all my hard disk!

  A pov file that #fopens a startup file (such as .login) and appends there
some nasty shell commands... The file could also open povray.ini and
append the nasty commands there as a pre-scene or post-scene command.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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Warp wrote:
> 
> Simon Lemieux <lem### [at] yahoocom> wrote:
> : Ok, give me a file.pov that can erase
> : all my hard disk!
> 
>   A pov file that #fopens a startup file (such as .login) and appends there
> some nasty shell commands... The file could also open povray.ini and
> append the nasty commands there as a pre-scene or post-scene command.

That was exactly what I had in mind... also create a nice script named
"povray", just for fun, to see how your path is set...
But it could also create an infinite number of files. Or infinitely long
ones. It costs you nothing to saturate the filesystem.

Note that I (and I think Warp too) am not bashing an idea I think good
and useful :-)
I would be very sorry if you got in trouble just because you opened a
nice rendering farm to everyone.

-- 

      __  __ __  __  _
|  | /  \  /  / |_  /  |/
\/\/ \__/ /_ /_ |__ \_ |\

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On Sat, 16 Sep 2000 20:26:34 +0000, Francois Dispot wrote:
>Warp wrote:
>> 
>> Simon Lemieux <lem### [at] yahoocom> wrote:
>> : Ok, give me a file.pov that can erase
>> : all my hard disk!
>> 
>>   A pov file that #fopens a startup file (such as .login) and
>> appends there some nasty shell commands... The file could also open
>> povray.ini and append the nasty commands there as a pre-scene or
>> post-scene command.
>
>That was exactly what I had in mind...

I don't know how Simon has set up his farm, of course, but I did
something like this, I'd run the povray processes as a separate user
which doesn't have write permissions to any file except the working
directory.

>also create a nice script named "povray",

The working directory shouldn't be in the PATH of povray.

>just for fun, to see how your path is set... But it could also create
>an infinite number of files. Or infinitely long ones. It costs you
>nothing to saturate the filesystem.

True (well, until you hit the quotas - but unless every job runs under a
different uid that would still stop all other rendering jobs). There is
no easy way to prevent that, but you can detect working directories over
a certain size and kill their jobs.

>I would be very sorry if you got in trouble just because you opened a
>nice rendering farm to everyone.

I have a suggestion: Would it be possible to upload a tar (or zip) file
with all the files decribing a scene? I tend to split my scenes into
many small files.

	hp

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|_|_) | Sysadmin WSR       | ungeeigneter als beispielsweise EDIT.COM,
| |   | hjp### [at] wsracat      | und das primaer aufgrund der erzeugung
__/   | http://www.hjp.at/ | falscher erwartungshaltungen. frank paulsen

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