[75273] in North American Network Operators' Group
Re: OT: Akamai DNS and Yahoo
daemon@ATHENA.MIT.EDU (Paul Vixie)
Tue Nov 9 20:11:06 2004
To: nanog@merit.edu
From: Paul Vixie <vixie@vix.com>
Date: 10 Nov 2004 01:09:57 +0000
In-Reply-To: <s190dfa0.017@fstest05.fb>
Errors-To: owner-nanog-outgoing@merit.edu
John.Neiberger@efirstbank.com ("John Neiberger") writes:
> ... Beginning sometime very recently, our DNS servers are not able to
> resolve www.yahoo.com. I have no problem if I point my PC to an external
> DNS server, but when I point it back at our internal servers I get
> timeouts when trying to resolve that domain.
>
> ... We're running a version of BIND 8 on Solaris 9, and it's likely that
> this behavior began this weekend after we applied the most recent patch
> cluster for Solaris 9 and rebooted the server. For quite a while, all
> external DNS was failing and we still have some odd intermittent problems
> but the most noticable issue that is 100% reproducible is the failure to
> resolve Yahoo addresses.
>
> ...
you'll need to get tcpdump running, and watch what queries are sent to whom,
and whether a nonrecognizable response is coming back. this sounds like a
problem with your ip source address or port number, rather than EDNS or
packet size.
--
Paul Vixie
