Re: Any Vulnerability Associated with Sharing single printer?

From: jove@gaza.halo.nu
Date: 09/11/02 

Date: Wed, 11 Sep 2002 13:33:06 -0500 (CDT)
From: <jove@gaza.halo.nu>
To: Reza Ghaffari <reza.ghaffari@auatac.com>

Reza,

        Yes there could be some risks associated with such an undertaking
most notably a race condition when data is recieved from both the rs-232
port and the parallell port. Due to faster speed from the parallel port
this type of race condition would be more seemlessly attacked from the
workstation connected to it. My advice to you would be to include a
security device that can interrupt voltage and amperage to the printer in
a binary fashion (on/off) in some sort of a device that could be toggeled
to two different positions (if anyone on the list knows of such a device
by all means, chime in). Hope that helps.

Regards,
jove
-------
Every time I think it can't get worse
I just have to check my e-mail

On Wed, 11 Sep 2002, Reza Ghaffari wrote:

> Does any one know if there is any risk associated with allowing two
> different users share a printer on printer's separate ports? One will be
> using its serial port and the other one will be using its parallel port.
> Thank you.
>
> (BTW, Printer model is a HP 2250TN or HP 2280TN)
>
> Regards,
>
> Reza Ghaffari
>
>

Relevant Pages

  • Re: Any Vulnerability Associated with Sharing single printer?
    ... > a binary fashion in some sort of a device that could be toggeled ... > On Wed, 11 Sep 2002, Reza Ghaffari wrote: ... >> using its serial port and the other one will be using its parallel port. ... >> Regards, ...
    (Vuln-Dev)
  • Help on parallel port programming under Windows XP
    ... I have a problem in programming to read a pin from the parallel port under ... Anyone got any sample code to help me? ... Best regards, ...
    (microsoft.public.vc.mfc)
  • Detect Parallel port
    ... I need to detect the parallel port address of a machine, ... Thanks & Regards, ... Mathew Paret. ... Prev by Date: ...
    (microsoft.public.vb.general.discussion)
  • Re: controlling devices through computers
    ... > controlling devices through computer using parallel port. ... > necessary details of the parallel port. ... > the coding language and how. ...
    (comp.lang.cpp)