Mailing List Archive

Are the clients on the same network as the server? If not
you will only get the MAC addresses of the router that is
forwarding you the packets.

George

>-----Original Message-----
>From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
>Sent: Thursday, February 21, 2002 11:27 AM
>To: users@httpd.apache.org
>Subject: logging MAC address of the client machines
>
>
>Hi,
>Is there a way to log the MAC address of the client machines
>connecting to
>the Apache server?
>
>Thanks
>Saqib Ali
>=======================
>Organic Document: Living and evolving document
>For more information on Organic Documents visit
>http://www.stonebeat.org
>
>
>
>---------------------------------------------------------------------
>The official User-To-User support forum of the Apache HTTP
>Server Project.
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Unfortunately they are all not on the same subnet :(

Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit
http://gcs.seagate.com/scripts/wiki/



George Gallen
<ggallen@slac To: "'users@httpd.apache.org'" <users@httpd.apache.org>
kinc.com> cc:
Subject: RE: logging MAC address of the client machines
02/21/2002
08:28 AM
Please
respond to
users








Are the clients on the same network as the server? If not
you will only get the MAC addresses of the router that is
forwarding you the packets.

George

>-----Original Message-----
>From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
>Sent: Thursday, February 21, 2002 11:27 AM
>To: users@httpd.apache.org
>Subject: logging MAC address of the client machines
>
>
>Hi,
>Is there a way to log the MAC address of the client machines
>connecting to
>the Apache server?
>
>Thanks
>Saqib Ali
>=======================
>Organic Document: Living and evolving document
>For more information on Organic Documents visit
>http://www.stonebeat.org
>
>
>
>---------------------------------------------------------------------
>The official User-To-User support forum of the Apache HTTP
>Server Project.
>See <URL:http://httpd.apache.org/userslist.html> for more info.
>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>For additional commands, e-mail: users-help@httpd.apache.org
>





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Not just the same subnet, but the same physical network.
That is if the client can send the packet to you without going
through any routers (hub and switches in general won't obstruct
the MAC address).

If you are talking about packets from the internet, then no way,
the MAC of your firewall/router will be what you get, or the MAC
of the router that last handled the packet before it got to your
computer if you didn't have a hardware firewall.

George

>-----Original Message-----
>From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
>Sent: Thursday, February 21, 2002 11:41 AM
>To: users@httpd.apache.org
>Subject: RE: logging MAC address of the client machines
>
>
>
>Unfortunately they are all not on the same subnet :(
>
>Saqib Ali
>=======================
>Organic Document: Living and evolving document
>For more information on Organic Documents visit
>http://gcs.seagate.com/scripts/wiki/
>
>
>
>
> George Gallen
>
> <ggallen@slac To:
>"'users@httpd.apache.org'" <users@httpd.apache.org>
> kinc.com> cc:
>
> Subject: RE:
>logging MAC address of the client machines
> 02/21/2002
>
> 08:28 AM
>
> Please
>
> respond to
>
> users
>
>
>
>
>
>
>
>
>
>
>
>Are the clients on the same network as the server? If not
>you will only get the MAC addresses of the router that is
>forwarding you the packets.
>
>George
>
>>-----Original Message-----
>>From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
>>Sent: Thursday, February 21, 2002 11:27 AM
>>To: users@httpd.apache.org
>>Subject: logging MAC address of the client machines
>>
>>
>>Hi,
>>Is there a way to log the MAC address of the client machines
>>connecting to
>>the Apache server?
>>
>>Thanks
>>Saqib Ali
>>=======================
>>Organic Document: Living and evolving document
>>For more information on Organic Documents visit
>>http://www.stonebeat.org
>>
>>
>>
>>---------------------------------------------------------------------
>>The official User-To-User support forum of the Apache HTTP
>>Server Project.
>>See <URL:http://httpd.apache.org/userslist.html> for more info.
>>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>>For additional commands, e-mail: users-help@httpd.apache.org
>>
>
>
>
>
>
>---------------------------------------------------------------------
>The official User-To-User support forum of the Apache HTTP
>Server Project.
>See <URL:http://httpd.apache.org/userslist.html> for more info.
>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>For additional commands, e-mail: users-help@httpd.apache.org
>

Hi,
Theres a website which you can visit which is able to get your mac address
just by visiting their site..

Surely its possible if they can do this?

Regards
Dave


On Thu, 21 Feb 2002, George Gallen wrote:

> Not just the same subnet, but the same physical network.
> That is if the client can send the packet to you without going
> through any routers (hub and switches in general won't obstruct
> the MAC address).
>
> If you are talking about packets from the internet, then no way,
> the MAC of your firewall/router will be what you get, or the MAC
> of the router that last handled the packet before it got to your
> computer if you didn't have a hardware firewall.
>
> George
>
> >-----Original Message-----
> >From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
> >Sent: Thursday, February 21, 2002 11:41 AM
> >To: users@httpd.apache.org
> >Subject: RE: logging MAC address of the client machines
> >
> >
> >
> >Unfortunately they are all not on the same subnet :(
> >
> >Saqib Ali
> >=======================
> >Organic Document: Living and evolving document
> >For more information on Organic Documents visit
> >http://gcs.seagate.com/scripts/wiki/
> >
> >
> >
> >
> > George Gallen
> >
> > <ggallen@slac To:
> >"'users@httpd.apache.org'" <users@httpd.apache.org>
> > kinc.com> cc:
> >
> > Subject: RE:
> >logging MAC address of the client machines
> > 02/21/2002
> >
> > 08:28 AM
> >
> > Please
> >
> > respond to
> >
> > users
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >Are the clients on the same network as the server? If not
> >you will only get the MAC addresses of the router that is
> >forwarding you the packets.
> >
> >George
> >
> >>-----Original Message-----
> >>From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
> >>Sent: Thursday, February 21, 2002 11:27 AM
> >>To: users@httpd.apache.org
> >>Subject: logging MAC address of the client machines
> >>
> >>
> >>Hi,
> >>Is there a way to log the MAC address of the client machines
> >>connecting to
> >>the Apache server?
> >>
> >>Thanks
> >>Saqib Ali
> >>=======================
> >>Organic Document: Living and evolving document
> >>For more information on Organic Documents visit
> >>http://www.stonebeat.org
> >>
> >>
> >>
> >>---------------------------------------------------------------------
> >>The official User-To-User support forum of the Apache HTTP
> >>Server Project.
> >>See <URL:http://httpd.apache.org/userslist.html> for more info.
> >>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> >>For additional commands, e-mail: users-help@httpd.apache.org
> >>
> >
> >
> >
> >
> >
> >---------------------------------------------------------------------
> >The official User-To-User support forum of the Apache HTTP
> >Server Project.
> >See <URL:http://httpd.apache.org/userslist.html> for more info.
> >To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> >For additional commands, e-mail: users-help@httpd.apache.org
> >
>


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Hmm that will work... How I do I go about doing that?

Thanks

Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit
http://gcs.seagate.com/scripts/wiki/



George Gallen
<ggallen@slac To: "'users@httpd.apache.org'" <users@httpd.apache.org>
kinc.com> cc:
Subject: RE: logging MAC address of the client machines
02/21/2002
08:47 AM
Please
respond to
users








Not just the same subnet, but the same physical network.
That is if the client can send the packet to you without going
through any routers (hub and switches in general won't obstruct
the MAC address).

If you are talking about packets from the internet, then no way,
the MAC of your firewall/router will be what you get, or the MAC
of the router that last handled the packet before it got to your
computer if you didn't have a hardware firewall.

George

>-----Original Message-----
>From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
>Sent: Thursday, February 21, 2002 11:41 AM
>To: users@httpd.apache.org
>Subject: RE: logging MAC address of the client machines
>
>
>
>Unfortunately they are all not on the same subnet :(
>
>Saqib Ali
>=======================
>Organic Document: Living and evolving document
>For more information on Organic Documents visit
>http://gcs.seagate.com/scripts/wiki/
>
>
>
>
>                    George Gallen
>
>                    <ggallen@slac        To:
>"'users@httpd.apache.org'" <users@httpd.apache.org>
>                    kinc.com>            cc:
>
>                                         Subject:     RE:
>logging MAC address of the client machines
>                    02/21/2002
>
>                    08:28 AM
>
>                    Please
>
>                    respond to
>
>                    users
>
>
>
>
>
>
>
>
>
>
>
>Are the clients on the same network as the server? If not
>you will only get the MAC addresses of the router that is
>forwarding you the packets.
>
>George
>
>>-----Original Message-----
>>From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
>>Sent: Thursday, February 21, 2002 11:27 AM
>>To: users@httpd.apache.org
>>Subject: logging MAC address of the client machines
>>
>>
>>Hi,
>>Is there a way to log the MAC address of the client machines
>>connecting to
>>the Apache server?
>>
>>Thanks
>>Saqib Ali
>>=======================
>>Organic Document: Living and evolving document
>>For more information on Organic Documents visit
>>http://www.stonebeat.org
>>
>>
>>
>>---------------------------------------------------------------------
>>The official User-To-User support forum of the Apache HTTP
>>Server Project.
>>See <URL:http://httpd.apache.org/userslist.html> for more info.
>>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>>For additional commands, e-mail: users-help@httpd.apache.org
>>
>
>
>
>
>
>---------------------------------------------------------------------
>The official User-To-User support forum of the Apache HTTP
>Server Project.
>See <URL:http://httpd.apache.org/userslist.html> for more info.
>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>For additional commands, e-mail: users-help@httpd.apache.org
>





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arrchie@cosmic.net.au wrote:
>
> Hi,
> Theres a website which you can visit which is able to get your mac address
> just by visiting their site..
>
> Surely its possible if they can do this?

And where is this wonderful website? How would it get the MAC address of
my home PC which I connect via a modem and doesn't even have a NIC?

I suspect the only way you could do this would be with a Javascript or
Java program which runs in the client and somehow extracts this from the
system (though you'd need to be a real Java wizard to do that). The MAC
address of the client is certainly not in the HTTP request.

Rgds,

Owen Boyle.

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Ill get the address for you by monday.


On Fri, 22 Feb 2002, Owen Boyle wrote:

> arrchie@cosmic.net.au wrote:
> >
> > Hi,
> > Theres a website which you can visit which is able to get your mac address
> > just by visiting their site..
> >
> > Surely its possible if they can do this?
>
> And where is this wonderful website? How would it get the MAC address of
> my home PC which I connect via a modem and doesn't even have a NIC?
>
> I suspect the only way you could do this would be with a Javascript or
> Java program which runs in the client and somehow extracts this from the
> system (though you'd need to be a real Java wizard to do that). The MAC
> address of the client is certainly not in the HTTP request.
>
> Rgds,
>
> Owen Boyle.
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>


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http://grc.com/default.htm
It gets the mac address via netbios I believe, which in alot of windows
machines is bound to tcp/ip when you connect to the internet.

Obviously if you dont have a Nic, then you dont have a MAC, but thats not
the point:)

So its possible in someway.

Regards
Dave


On Fri, 22 Feb 2002, Owen Boyle wrote:

> arrchie@cosmic.net.au wrote:
> >
> > Hi,
> > Theres a website which you can visit which is able to get your mac address
> > just by visiting their site..
> >
> > Surely its possible if they can do this?
>
> And where is this wonderful website? How would it get the MAC address of
> my home PC which I connect via a modem and doesn't even have a NIC?
>
> I suspect the only way you could do this would be with a Javascript or
> Java program which runs in the client and somehow extracts this from the
> system (though you'd need to be a real Java wizard to do that). The MAC
> address of the client is certainly not in the HTTP request.
>
> Rgds,
>
> Owen Boyle.
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>


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arrchie@cosmic.net.au wrote:
>
> http://grc.com/default.htm
> It gets the mac address via netbios I believe, which in alot of windows
> machines is bound to tcp/ip when you connect to the internet.
>
> Obviously if you dont have a Nic, then you dont have a MAC, but thats not
> the point:)
>
> So its possible in someway.

Only in the restricted case of certain machines running certain
proprietary software which advertises the MAC address. You could also
get the colour of the wallpaper of the room the computer is sitting in
if the computer chose to send you this information. But there is no
*general* way, supported by standard protocols (HTTP, TCP/IP etc.) to
obtain the MAC address of a networked computer at the other end of an
internet.

Rgds,

Owen Boyle

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What the prev. poster said was basically..if theres a router or switch in
between point A and B, you can NOT get the MAC addr of either end's NIC
card. Those types of devices change the MAC as they route/switch the
traffic.

-----Original Message-----
From: myatt83@potsdam.edu [mailto:myatt83@potsdam.edu]
Sent: Monday, February 25, 2002 8:49 PM
To: users@httpd.apache.org
Subject: Re: logging MAC address of the client machines


There is definitely a way to do it, although I don't know the specifics,
but I believe it can be done in PERL.

The university I attend has a system to control who accesses the network
from the student dorms. After plugging in, students must open a web browser
and the auto-DNS/DHCP forces them to a registration page where they fill
out their personal info, dorm phone #, campus username & password, etc.
After authorization via CGI-to-database with their student
username/password, the page somehow extracts their MAC address and then
dynamically adds it to the DHCP server's tables. No applets are used, no
software is added to the students computers, and this works for Windows
9x,NT,ME,2k,XP, Macintosh, Linux, etc.

Not sure if this is the correct way it works, but it's something similar.
Check out header information in Perl and perhaps that may lead to a
solution.

- Adam



At 09:37 AM 2/25/2002 +0100, you wrote:
>arrchie@cosmic.net.au wrote:
>>
>> http://grc.com/default.htm
>> It gets the mac address via netbios I believe, which in alot of windows
>> machines is bound to tcp/ip when you connect to the internet.
>>
>> Obviously if you dont have a Nic, then you dont have a MAC, but thats not
>> the point:)
>>
>> So its possible in someway.
>
>Only in the restricted case of certain machines running certain
>proprietary software which advertises the MAC address. You could also
>get the colour of the wallpaper of the room the computer is sitting in
>if the computer chose to send you this information. But there is no
>*general* way, supported by standard protocols (HTTP, TCP/IP etc.) to
>obtain the MAC address of a networked computer at the other end of an
>internet.
>
>Rgds,
>
>Owen Boyle
>
>---------------------------------------------------------------------
>The official User-To-User support forum of the Apache HTTP Server Project.
>See <URL:http://httpd.apache.org/userslist.html> for more info.
>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>For additional commands, e-mail: users-help@httpd.apache.org
>
>
>


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There is definitely a way to do it, although I don't know the specifics,
but I believe it can be done in PERL.

The university I attend has a system to control who accesses the network
from the student dorms. After plugging in, students must open a web browser
and the auto-DNS/DHCP forces them to a registration page where they fill
out their personal info, dorm phone #, campus username & password, etc.
After authorization via CGI-to-database with their student
username/password, the page somehow extracts their MAC address and then
dynamically adds it to the DHCP server's tables. No applets are used, no
software is added to the students computers, and this works for Windows
9x,NT,ME,2k,XP, Macintosh, Linux, etc.

Not sure if this is the correct way it works, but it's something similar.
Check out header information in Perl and perhaps that may lead to a solution.

- Adam



At 09:37 AM 2/25/2002 +0100, you wrote:
>arrchie@cosmic.net.au wrote:
>>
>> http://grc.com/default.htm
>> It gets the mac address via netbios I believe, which in alot of windows
>> machines is bound to tcp/ip when you connect to the internet.
>>
>> Obviously if you dont have a Nic, then you dont have a MAC, but thats not
>> the point:)
>>
>> So its possible in someway.
>
>Only in the restricted case of certain machines running certain
>proprietary software which advertises the MAC address. You could also
>get the colour of the wallpaper of the room the computer is sitting in
>if the computer chose to send you this information. But there is no
>*general* way, supported by standard protocols (HTTP, TCP/IP etc.) to
>obtain the MAC address of a networked computer at the other end of an
>internet.
>
>Rgds,
>
>Owen Boyle
>
>---------------------------------------------------------------------
>The official User-To-User support forum of the Apache HTTP Server Project.
>See <URL:http://httpd.apache.org/userslist.html> for more info.
>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>For additional commands, e-mail: users-help@httpd.apache.org
>
>
>


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Exactly.
And when you use DHCP, you often have a "DHCP-forwarder", a router or a server
that takes the client's DHCP-requests from the local LAN-segment and forwards
them to the central DHCP-server.
I guess that the MAC-address that you see in the registration form is the
address that have been forwarded to the DHCP-server by the DHCP-forwarder when
you connected to the network. The CGI-script then fetches it from the
DHCP-table.

Best Regards
Anders Knuts

"Mohler, Jeff" skrev:

> What the prev. poster said was basically..if theres a router or switch in
> between point A and B, you can NOT get the MAC addr of either end's NIC
> card. Those types of devices change the MAC as they route/switch the
> traffic.
>
> -----Original Message-----
> From: myatt83@potsdam.edu [mailto:myatt83@potsdam.edu]
> Sent: Monday, February 25, 2002 8:49 PM
> To: users@httpd.apache.org
> Subject: Re: logging MAC address of the client machines
>
> There is definitely a way to do it, although I don't know the specifics,
> but I believe it can be done in PERL.
>
> The university I attend has a system to control who accesses the network
> from the student dorms. After plugging in, students must open a web browser
> and the auto-DNS/DHCP forces them to a registration page where they fill
> out their personal info, dorm phone #, campus username & password, etc.
> After authorization via CGI-to-database with their student
> username/password, the page somehow extracts their MAC address and then
> dynamically adds it to the DHCP server's tables. No applets are used, no
> software is added to the students computers, and this works for Windows
> 9x,NT,ME,2k,XP, Macintosh, Linux, etc.
>
> Not sure if this is the correct way it works, but it's something similar.
> Check out header information in Perl and perhaps that may lead to a
> solution.
>
> - Adam
>
> At 09:37 AM 2/25/2002 +0100, you wrote:
> >arrchie@cosmic.net.au wrote:
> >>
> >> http://grc.com/default.htm
> >> It gets the mac address via netbios I believe, which in alot of windows
> >> machines is bound to tcp/ip when you connect to the internet.
> >>
> >> Obviously if you dont have a Nic, then you dont have a MAC, but thats not
> >> the point:)
> >>
> >> So its possible in someway.
> >
> >Only in the restricted case of certain machines running certain
> >proprietary software which advertises the MAC address. You could also
> >get the colour of the wallpaper of the room the computer is sitting in
> >if the computer chose to send you this information. But there is no
> >*general* way, supported by standard protocols (HTTP, TCP/IP etc.) to
> >obtain the MAC address of a networked computer at the other end of an
> >internet.
> >
> >Rgds,
> >
> >Owen Boyle
> >
> >---------------------------------------------------------------------
> >The official User-To-User support forum of the Apache HTTP Server Project.
> >See <URL:http://httpd.apache.org/userslist.html> for more info.
> >To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> >For additional commands, e-mail: users-help@httpd.apache.org
> >
> >
> >
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
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myatt83@potsdam.edu wrote:
>
> There is definitely a way to do it, although I don't know the specifics,
> but I believe it can be done in PERL.
>
> The university I attend has a system to control who accesses the network
> from the student dorms. After plugging in, students must open a web browser
> and the auto-DNS/DHCP forces them to a registration page ..etc.

There are lots of ways to get all sorts of information from computers IF
you have a controlled environment - like your university intranet. As
another respondant says, in this case the server gets the MAC address
from the DHCP-forwarder which is in physical contact with the client.

There is no GENERAL way to get a client MAC address across an internet
(i.e. a network built using TCP/IP).

Rgds,

Owen Boyle.

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One thing that i don't remember the orginal poster asking, is he just
worried about IE/windows traffic or does he want the mac of all clients. If
he can restrict to IE/Win, an activeX control might be able to get the info
with very little hassle. Java would be the only cross-platform solution I
can think of, but text mode browsers don't have java interpreters embeded.


John Darin Holloway
Bluegrass Network, LLC


----- Original Message -----
From: "Owen Boyle" <obo@bourse.ch>
To: <users@httpd.apache.org>
Sent: Tuesday, February 26, 2002 03:15 AM
Subject: Re: logging MAC address of the client machines


> myatt83@potsdam.edu wrote:
> >
> > There is definitely a way to do it, although I don't know the specifics,
> > but I believe it can be done in PERL.
> >
> > The university I attend has a system to control who accesses the network
> > from the student dorms. After plugging in, students must open a web
browser
> > and the auto-DNS/DHCP forces them to a registration page ..etc.
>
> There are lots of ways to get all sorts of information from computers IF
> you have a controlled environment - like your university intranet. As
> another respondant says, in this case the server gets the MAC address
> from the DHCP-forwarder which is in physical contact with the client.
>
> There is no GENERAL way to get a client MAC address across an internet
> (i.e. a network built using TCP/IP).
>
> Rgds,
>
> Owen Boyle.
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
>


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Hi John,
I know that I can use a ActiveX Control or Java applet to get that info,
but I was hoping there would be an more elegant way of doint it.

Thanks.
Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit
http://gcs.seagate.com/scripts/wiki/



"John Darin
Holloway" To: <users@httpd.apache.org>
<jdholloway@b cc:
lue.net> Subject: Re: logging MAC address of the client machines

02/26/2002
06:22 AM
Please
respond to
users






One thing that i don't remember the orginal poster asking, is he just
worried about IE/windows traffic or does he want the mac of all clients.
If
he can restrict to IE/Win, an activeX control might be able to get the info
with very little hassle. Java would be the only cross-platform solution I
can think of, but text mode browsers don't have java interpreters embeded.


John Darin Holloway
Bluegrass Network, LLC


----- Original Message -----
From: "Owen Boyle" <obo@bourse.ch>
To: <users@httpd.apache.org>
Sent: Tuesday, February 26, 2002 03:15 AM
Subject: Re: logging MAC address of the client machines


> myatt83@potsdam.edu wrote:
> >
> > There is definitely a way to do it, although I don't know the
specifics,
> > but I believe it can be done in PERL.
> >
> > The university I attend has a system to control who accesses the
network
> > from the student dorms. After plugging in, students must open a web
browser
> > and the auto-DNS/DHCP forces them to a registration page ..etc.
>
> There are lots of ways to get all sorts of information from computers IF
> you have a controlled environment - like your university intranet. As
> another respondant says, in this case the server gets the MAC address
> from the DHCP-forwarder which is in physical contact with the client.
>
> There is no GENERAL way to get a client MAC address across an internet
> (i.e. a network built using TCP/IP).
>
> Rgds,
>
> Owen Boyle.
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server
Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
>


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