Vulnerability Development mailing list archives
Re: Any Vulnerability Associated with Sharing single printer?
From: Stewart Smith <stewart () gammasolutions com>
Date: 18 Sep 2002 10:44:35 +1000
In my experience (at least with Epson printers, and i'm talking old inkjets here) the printer had a sort of "lock" itself, so that if two people tried to print at once, one got an error message (the printer is in use) and the other got to print. i.e. I was working fine with a PC on one end (via parallel) and mac on the other (via serial) and could print from both. And yes, I tried hitting "print" at the same time, and it all was okay. On Thu, 2002-09-12 at 04:33, jove () gaza halo nu wrote:
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
-- Stewart Smith stewart () gammasolutions com Programmer / UNIX Sys Admin Gamma Solutions Pty Ltd Monash Corporate Centre, Unit 11, 20 Duerdin Street, Clayton, Victoria 3168 Phone: +61 3 9562 7755 Fax: +61 3 9562 7766 Mobile: +61 4 3884 4332
Attachment:
signature.asc
Description: This is a digitally signed message part
Current thread:
- Any Vulnerability Associated with Sharing single printer? Reza Ghaffari (Sep 11)
- <Possible follow-ups>
- Re: Any Vulnerability Associated with Sharing single printer? Stewart Smith (Sep 18)