Re: MAC Address

From:	Chris Hewitt	Date:	Mon, 05 May 2003 10:52:56 +0000
Subject:	Re: MAC Address
References:	1 2	Groups:	php.general
Request:	Send a blank email to php-general+get-146416@lists.php.net to get a copy of this message

Urb LeJeune wrote:

oh dear i'd like to know this too , as getting an ip is quite tedious if the proxy blocks it
        Just a little background. The MAC address is unique for each
computer. Would be perfect to determine if a user has already voted in a poll or something like that. Much more reliable indicator than an IP address. Microsoft is now using the MAC address when issuing passwords for installing software.

The MAC address is unique for each ethernet card, is there an equivalent for e.g. a serial dial-up interface? Change the network card (or buy a new computer) and you have a different MAC address. HTH Chris