On 2/27/02 at 2:00 PM -0500, Keith Moore wrote:
I guess my question is how valuable this is. As far as I can tell,
stable DNS names are of limited utility unless the underlying IP
address(es) are also stable.
I can think of several uses:
1. I'm in a place with lousy or expensive connectivity; maybe I'm
running an installation at the south pole. My connection to the
outside world is to an ISP with a limited number of IP addresses that
are allocated as people connect up. I run an SMTP server for multiple
users. I have an MX for my machine that points to a machine at my ISP
that is on the net full time. Every so often, I dial up, connect my
server to the net and give it the correct domain name, send an ETRN
to my MX server and have all the mail dumped to my server. Then I can
disconnect and all of my internal users can connect up by POP or IMAP
to my server.
2. I want to have an instant message session with you. Instead of all
of this rendezvous protocol stuff we're doing now, I just give you a
domain name. It doesn't matter where I connect from; my domain name
is dynamically updated. You find me by querying my domain name.
And I assume there are lots of variants of the above. A widely
deployed dynamic DNS makes a good deal of service location protocol
unnecessary. Seems like a good thing to me.
pr
--
Pete Resnick <mailto:presnick(_at_)qualcomm(_dot_)com>
QUALCOMM Incorporated - Direct phone: (858)651-4478, Fax: (858)651-1102