2003-02-03T14:26:48 Greg Hackney:
> >....if someone has DNS sufficiently
> > ...poorly configured that many or most initial queries timeout....
> > ...why should you worry on their behalf?
> > -Bennett
>
> Because the most problematic case is skytel.com (Skytel emergency
> paging via email)

Ahh, thanks for the additional info.

If I owned your problem myself, here's what _I_ would do about it.

I'd identify this domain that's critical to my operations, and whose
DNS is marginal, and would set up a script that (a) automatically
checks say once/hour to make sure the data hasn't changed, and if so
kicks off a rebuild of the (b) private mirror I kept, served by a
little localhost-bound tinydns instance, that's offering
authoritative MX and corresponding A data for skytel.com, which is
in turn (c) used by the dnscache instance local to the mail server
for its lookups. djbdns (like recent versions of bind) allows a
caching nameserver to be configured to divert queries for certain
domains to specific servers, overriding the normal
delegation-from-root path.

-Bennett

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