[thelist] Attaining reliable MAC Address using javascript

Eduardo Kienetz eduardok at gmail.com
Thu Mar 15 12:53:22 CDT 2007

On 3/15/07, Chris Dorer <cdorer at gmail.com> wrote:
> On 3/15/07, Anthony Baratta <anthony at baratta.com> wrote:
> >
> > That's OS level information, you'd need a signed script and have the user
> > approve the script's access to the OS before that is going to work. The
> > browser security levels are going to block that info.
> >
> > That being said. Why not have Apache get that info for you? If you have
> > the user's IP, you can use the OS of the Web Server to get the MAC address
> > for that IP. Granted Firewalls and proxys are going to mess that data up -
> > but depending on what you are trying to accomplish that might work well
> > enough.
> Is this an internal or external need? Wy do you need MAC Addresses?
> mac addresses are a way to uniquely identify a computer (not using ip
> addresses) that have been brought up in a recent meeting.
> This is a need for a client I'm working with.

Watch out, mac addresses might be cloned. As long as this doesn't need
to be a 100% secure solution, you'd be fine though.


Eduardo  Bacchi Kienetz
LPI Certified - Level 2

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