Subject: Re: NetBSD vs. idiot hotel wireless
To: Steven M. Bellovin <firstname.lastname@example.org>
From: Chuck Swiger <email@example.com>
Date: 03/15/2005 23:51:31
Steven M. Bellovin wrote:
> The hotel I'm staying at has a new and stupider-than-usual setup: its
> DNS intercept mechanism replies from a different IP address *and port
> number* than the one to which NetBSD sent a query.
Interesting-- was it a multicast address (224.0.0.XXX) and port 5353? If so,
that is multicast DNS, or mDNS, used by Zeroconf and Rendezvous mainly on
Windows and the Mac.
> I could probably have hacked the resolver library, but I'd had a bit too
> much ethanol at dinner to want to do that.
Better living through chemistry.
Life is too short to stay entirely sober. :-)
> Is there any configuration or resolv.conf setting I could have used? I had
> to reboot to our favorite insecure operating system, just to get past the
> nonsense, before I could use the Internet. This didn't amuse me...
Hmph. Your best bet would have been to point to a remote proxy you know about
by IP address. Otherwise, I believe Apple has mDNS code on their Darwin site,
and a quick look around also suggests:
"mdnsd is a very lightweight, simple, portable, and easy to integrate open
source implementation of Multicast DNS (part of Zeroconf, also called
Rendezvous by Apple) for developers. It supports both acting as a Query and
a Responder, allowing any software to participate fully on the
-- Dan Pelleg