At Mon, 19 Jan 2015 14:16:47 -0800,
Paul Hoffman wrote:
>
> [...] we wanted people to look over the new version and give
> feedback. Thanks!
The introduction presents the definition,
"The DNS is a simple query-response protocol whose messages in both
directions have the same format."
Maybe it's just me, but I think a broader definition would be useful
for "instructional" purposes. I'm not thinking here only of teaching
students or professional trainees, but also of persuading management.
From time to time, I've found I needed to describe the DNS in any
of four different ways, according to the aspect needing emphasis
in particular circumstances.
FWIW, I see the DNS as
- a naming scheme for objects on the Internet;
- a database representing the names and certain properties of these
objects;
- an architecture providing distributed maintenance, resilience,
and loose coherency for this database; and
- a simple query-response protocol (as mentioned in the current
draft) implementing this architecture.
IHTH
Niall O'Reilly
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