On Fri, Nov 7, 2008 at 10:19 AM, Peter Scheie <<a href="mailto:peter@scheie.homedns.org">peter@scheie.homedns.org</a>> wrote: <div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Here's an almost-helpful suggestion: There are some projects out there, the names of which I can't recall at the moment, in which unrecognized client systems are redirected to a webpage in which the user is required to register. This happens via the user's web browser, so if the user doesn't open firefox, say, it appears to them they are just not connected. These kind of systems are deployed in places likes yours, and airports where they charge for internet access. There was a great writeup about one system six or eight years ago in Linux Journal, by some people from a school such as yours. Unfortunately, I don't remember the name of their project, but you might try searching LJ's archives. Peter</blockquote></div> Peter, I think the project are either PacketFence <a href="http://www.packetfence.org">http://www.packetfence.org</a> or OpenNAC <a href="http://www.opennac.net">http://www.opennac.net</a> <a href="http://www.linuxjournal.com/article/9551">http://www.linuxjournal.com/article/9551</a>