intermittent bad horizontal referral?

Karl Auer kauer at
Mon Oct 17 22:37:35 UTC 2011

Hi there.

I have three domains,, and All are show intermittent but frequent "bad horizontal
referral". It happens at the level.

To see it, do (for example):

   dig+trace ns

Some such queries return correctly, some end up in a BHR loop.

I can't see how this is in my power to control; I have not changed those
zones for some time, but the problem only arose a week or so ago. It
also seems odd to me that it affects domains in both and,
and managed by three different organisations (that is the zone files for
those domains are spinning on computers at three different companies).

I appreciate that this is probably not a BIND problem as such, but I'm a
bit stumped as to where to start looking for a solution.

Regards, K.

Karl Auer (kauer at                   +61-2-64957160 (h)                   +61-428-957160 (mob)

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Old fingerprint: B386 7819 B227 2961 8301 C5A9 2EBC 754B CD97 0156
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