Re: OT: Akamai DNS and Yahoo

[Paul Vixie <vixie () vix com>]

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