One A record fails on one server on Sunday evening

Barry Margolin barmar at
Tue Nov 3 02:39:45 UTC 2009

In article <mailman.872.1257181286.14796.bind-users at>,
 Josh Luthman <josh at> wrote:

> It has happened the last 4 or 5 Sunday nights.
> Currently there are no logs - what categories would you suggest I start
> logging?
> The server comes back with simply no response.  It just times out.  It
> resolves every other record I could think of to ask it.  Also, it may or may
> not be relevant but if I ssh in I can ping (and hence resolve) the

When it's failing, make a cache dump.  Check the cache for the NS 
records of the domain, and the A records for the nameservers.

Barry Margolin, barmar at
Arlington, MA
*** PLEASE don't copy me on replies, I'll read them in the group ***

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