How to fake DNS-responses?

[Matze]

Hi there!

I need to setup an DNS-Server (available: BIND 8) which responds to
ANY request with a SINGLE IP-Address (which belongs to my webserver).

Background: I want to prevent users to get access to the internet with
an unconfigured/unpatched PC, so I set up a DHCP which gives them a
private IP. I just need to inform those users how to setup their
machine correctly. So every http-Request should lead to my webserver
which is presenting this information. I don't want to rely on giving
IE some proxy-settings via DHCP (this works fine, but only if IE is
configured to fetch those proxy-settings).

Please CC me a copy of your answer, THX!

MATZE