[atlas] Support for arbitrary DNS queries

On Thu, Dec 10, 2015 at 2:33 PM, Jared Mauch <jared at puck.nether.net> wrote:

>
> > On Dec 10, 2015, at 6:21 AM, Philip Homburg <philip.homburg at ripe.net>
> wrote:
> >
> > On 2015/12/10 10:11 , Willem Toorop wrote:
> >> And sending arbitrary EDNS0 options?  Have you ever considered that too?
> >> Is it on the todo list too?
> >
> > Hi Willem,
> >
> > Just about all EDNS0 options take parameters. It is not part of the
> > model to allow users to inject arbitrary binary data. Though if there is
> > sufficient interest, we can add some of the options currently proposed
> > (cookies, keepalive)
>
> client-subnet? :)
>
> - Jared
>

Is this really useful? I mean, if a DNS server honors client-subnet, then
it doesn't really matter which node is making the lookup. you might as well
loop over your local machine and change the client-subnet.

what could be very interesting though, is to map DNS servers supporting
EDNS0 and ones not supporting it (i.e. which network operators should be
bugged to support it...). it would be very good for network operators to
see e.g. in-country adoption rate before relying on a CDN using EDNS0 as
the core POP routing technology.
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