creeping death ???

Mark_Andrews at isc.org Mark_Andrews at isc.org
Wed Sep 25 00:41:30 UTC 2002


> 
> Tommy McLeod wrote:
> 
> > Hi all,
> >
> > we have a wee problem,
> >
> > we provide Name Services for iea-shc.org. I can query this from almost
> > anywhere in the world (can get SOA's etc), however, I have some people
> > trying to get to www.iea-shc.org from finland, denmark and now Sweden
> > who are unable to resolve anything, they cant even get soa's for the
> > domain.
> >
> > I have checked this from the states, malaysia, the netherlands etc etc
> > and they all seem to be able to et the required info and resolve the
> > hosts, I have come up through the root .org servers and they have also
> > provided the correct information.
> >
> > Heres the funny part, we serve ns requests for vuw.ac.nz, the affected
> > servers in finland and denmark can resolve those perfectly, they get
> > soa's etc but still cant get iea-shc.org ... but the rest of the world
> > can ... hte DNS is on the same box, UDP/53 traffic is not firewalled or
> > blocked in any way, and the bind version is 8.3.3
> >
> > Any ideas ???
> 
> The only thing that comes to mind is that the .org servers aren't going to
> provide glue records since the delegations in this case are in a ccTLD
> (which the .org servers don't serve), whereas when these Scandinavian
> servers query something in vuw.ac.nz, they get glue records all of the way
> down the delegation chain. If the Scandinavian nameservers aren't smart
> enough to re-query for glue records, they'll get stuck. They'd have to be
> pretty dumb, though, and if they were _that_ dumb, they'd be having
> trouble with a lot more domains than just iea-shc.org...
> 
> 
> - Kevin (former Vic student)

	Well DNS error are not usually geographically related.  All
	I can think of is that there is some data related link layer
	error and all the sites involved transit a common path.

	Mark
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org


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