[dns-operations] Whimsical AXFR behavior ?

Jon Lewis jlewis at lewis.org
Sun Jun 23 23:56:49 UTC 2013

On Mon, 24 Jun 2013, Marjorie wrote:

> 4. Now something more puzzling, I have noticed at least one NS that exhibits 
> some sort of random behavior: it typically denies AXFR at the first attempt 
> but after repeating the request five or seven times (more or less) it finally 
> releases the zone data as requested... some days it is not in a good mood: 
> after 20 tries it still says "No !" o:) So that depends. I am really 
> wondering what makes a NS behave like that ?

Load-balancer + some fraction of misconfigured servers that haven't 
restricted AXFR access?

  Jon Lewis, MCP :)           |  I route
                              |  therefore you are
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