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Article #75

Re: MacBook weidness

#75
From: Bruce Esquibel
Date: Thu, 21 Feb 2013 13:04
25 lines
2290 bytes
Mark Anderson <mea@nospambradnylion.com> wrote:

> I am now a bit more curious thus this post.

"The reason why it's sending the query over and over is because the DNS
server is returning a DNS response of RCODE: 2 (ServFail), which is not a
normal response. It indicates a server misconfiguration. If the server were
to return the standard RCODE: 3 (NXDOMAIN) response, then mDNSResponder
would stop sending queries. It's still a bug in mDNSResponder that it's not
handling the ServFail very well, but it explains why only a few people are
seeing this issue. Most people have DNS servers that return NXDOMAIN as the
response."

It seems this bug comes up with various updates to OSX.

The simpliest solution it seems is to have only one dns entry on the macbook
for the dns resolvers. With only one entry it'll time out even with the
servfail being returned.

I dunno what you are doing with this network, handing out free wifi or
whatever, but changing the dhcp configuration so the connecting computers
only get one dns server should work also.

-bruce
bje@ripco.com
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From: Bruce Esquibel <bje@ripco.com>
Newsgroups: chi.internet
Subject: Re: MacBook weidness
Date: Thu, 21 Feb 2013 13:04:27 +0000 (UTC)
Organization: Ripco Communications Inc.
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