Spotty Lookups on One of Our Networks

Carsten Strotmann cas at strotmann.de
Wed Oct 31 13:28:56 UTC 2012


Hello Martin,

Martin McCormick <martin at dc.cis.okstate.edu> writes:

> I described a case where one of our remote campuses can't
> resolve a number of remote domains. One example is noaa.gov. It
> also successfully resolves random remote domains without
> seemingly any rime or reason.
>
> 	Here is a bad dig trace for noaa.gov
>
[...]

<http://www.zonecut.net/dns> shows that
nameserver ns-e.noaa.gov is not responding

The dig +trace might "hang" if that authoritative DNS server is selected
for the query. 

"ns-mw.noaa.gov" and "ns-nw.noaa.gov" operate fine. "ns-e" could mean
"east coast".

-- Carsten



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