[75176] in North American Network Operators' Group
Update to Strange DNS Issue
daemon@ATHENA.MIT.EDU (John Neiberger)
Mon Nov 8 16:34:34 2004
Date: Mon, 08 Nov 2004 14:29:30 -0700
From: "John Neiberger" <John.Neiberger@efirstbank.com>
To: <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
I have some additional information that's making me think what I saw on
Saturday was just a coincidence. We have two DNS servers that were
unable to resolve external addresses beginning around 4:00 PM MST on
Saturday, but I found out that they both had just been rebooted. We use
some version of BIND on Solaris 9 and it was verified that named was
running, yet external names would not resolve for a few hours. External
names began to resolve in a few hours with no intervention on our part.
BIND gurus, any idea why this might have occurred? If named is running
and internal names resolve *and* there are no problems with Internet
connectivity, what might cause external lookups to timeout for a few
hours only to resolve spontaneously? It seems a little strange and I'm
sure there's some important information that I'm missing that would make
it all makes sense.
Thanks,
John
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