Moving DNS out of non-cooperative provider

[Tony Finch]

Mark Andrews <marka at isc.org> wrote:
> In message <4FDF631A.4060405 at brandeis.edu>, John Miller writes:
> >
> > We've actually run into this before.  Once upon a time, RCN cable used
> > to run some slave servers for us, but we've long since moved away from
> > them, including zone transfers.  We yanked them from our registrar a
> > long time ago, and life was good.  For whatever reason, RCN's still
> > answering queries for brandeis.edu.
>
> And if there is another zone with a CNAME to a brandeis.edu domain
> on those servers the clients will be getting old data.  As you have
> no control over creation of CNAMEs in other zones I would suggest
> that you send them a Cease and Decist notice if they are still doing
> it.

Here's a tip for anyone running an open DNS hosting service: you can use
"additional-from-auth no; additional-from-cache no;" to reduce problems of
this kind.

Tony.
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f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
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