Re: Getting MAC address
On Wed, 21 Mar 2001, John Whitnack wrote: Is there a way to get a person MAC address using apache, mod_perl or javascript. I have yet to find a way to do this? I need a way to uniquely identify the computer a person is using (i.e. not ip address). John Whitnack If I'm correct, MAC address is a means of identifying some communication devices sharing a commun physical link, like Ethernet. For instance, SLIP and PPP do not use any. They do not need to since they are used in peer to peer communication. So let's suppose your client is hooked on an Ethernet segment. According to TCP/IP operation (TCP/IP Illustrated by Stevens is a good reference), getting at the client PC MAC address would require your Apache server to have one NIC share the client Ethernet segment. In such a case, it would be possible to perform an ARP request, or scan the Apache server ARP cache with a command like (Linux) # /sbin/arp -a | grep 'clientIP''| cut -d' ' -f4 to fetch the MAC address. Otherwise, the best bet would be to have Javascript deliver it to your Apache server as a mere data. But I do not see in the Javascript specs any provision for doing that. Good luck Franck --- | A fashion rules each age, without most people | | being able to see the tyrants that rule them. | | [Albert Einstein]| ---
Re: Getting MAC address
Is there a way to get a person MAC address using apache, mod_perl or javascript. I have yet to find a way to do this? I need a way to uniquely identify the computer a person is using (i.e. not ip address). John Whitnack I just stumbled upon this patch URL:http://www.apache.org/dist/httpd/contrib/patches/1.3/macaddr.patch, which begins: Date: Tue, 21 Apr 1998 12:47:50 +1000 From: John Holden [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: mod_access/2079: Enhanced security - Checking IP/hardware address aginst ARP entry in kernel Cc: [EMAIL PROTECTED] It'd be great if you could hack up a patch for 1.3 I have grafted the required changes to allow for ip/mac address checks in V1.3. I have allowed an expanded syntax the mac address :- only from 123.123.123 0123456789av or only from 123.123.123 01-23-45-67-89-ab or only from 123.123.123 01:23:45:67:89:ab There may be more work required for different UNix kernels or Windows, for the ARP lookup. The general .htaccess handling is FAR more efficient that version 1.2.6. We mere mortals appreciate the excellent work! regards John This might get you started; Good luck. (darren) -- #define NAME "darren chamberlain" #define EMAIL "[EMAIL PROTECTED]"
Re: Getting MAC address
On Wed, 21 Mar 2001, John Whitnack wrote: Is there a way to get a person MAC address using apache, mod_perl or javascript. I have yet to find a way to do this? I need a way to uniquely identify the computer a person is using (i.e. not ip address). Bear in mind that a MAC address is something specific to an *Ethernet* network. ATM networks have their own addressing scheme and other networks will have theirs. This would only work if the person is on the same *link layer network* as you, ie, non-routed (because then you'll just get the mac of the router). The answer is to parse the output of arp -a, or equivalent... MBM -- Matthew Byng-Maddick Home: [EMAIL PROTECTED] +44 20 8980 5714 (Home) http://colondot.net/ Work: [EMAIL PROTECTED] +44 7956 613942 (Mobile) Genius may have its limitations, but stupidity is not thus handicapped. -- Elbert Hubbard
Re: Getting MAC address
John Whitnack wrote: Is there a way to get a person MAC address using apache, mod_perl or javascript. I have yet to find a way to do this? I need a way to uniquely identify the computer a person is using (i.e. not ip address). John Whitnack No. This information should not be available utilizing any of these methods...and if it was, I'm sure the privacy advocates would fight as hard against utilizing MAC addresses as they did the Intel processor unique identifiers. I assume you probably want to do this to prevent spoofing of ip/server names??? Emad
Re: Getting MAC address
you can only get a MAC address for those machines which are on your same subnet. if you are using linux/unix try: arp sorry - but there is no reliable way to identify machines across the internet. that is why there are 'cookies'. intel tried to make this possible by embedding a number into their chips, but us privacy freaks had their heads. -- ___cliff [EMAIL PROTECTED]http://www.genwax.com/ John Whitnack wrote: Is there a way to get a person MAC address using apache, mod_perl or javascript. I have yet to find a way to do this? I need a way to uniquely identify the computer a person is using (i.e. not ip address). John Whitnack
Re: Getting MAC address
Hello, JWIs there a way to get a person MAC address using apache, mod_perl or JWjavascript. I have yet to find a way to do this? I need a way to JWuniquely identify the computer a person is using (i.e. not ip address). If you mean the MAC address of the remote client who is connecting to your server, no. This information isn't included in the request sent to you. Using cookies as identification mechanisms is probably the way to go. Humbly, Andrew -- Andrew Ho http://www.tellme.com/ [EMAIL PROTECTED] Engineer [EMAIL PROTECTED] Voice 650-930-9062 Tellme Networks, Inc. 1-800-555-TELLFax 650-930-9101 --
