Why does a non-delegated sub-domain work?

Ben Croswell ben.croswell at gmail.com
Mon May 7 17:13:32 UTC 2012

You are getting "lucky" that they are on the same server and when asked
about anything in the subdomain the server notices it loads it and answers
for it. It is however a landmine waiting for someone in thee future.  If
you move the subdomain to another server without fixing the delegation the
subdomain will disappear.

-Ben Croswell
On May 7, 2012 1:08 PM, "M. Meadows" <sun-guru at live.com> wrote:

> So ... if we have
> exacttarget.com delegated to ns1 and ns2.exacttarget.com nameservers
> and ... we manage the s6.exacttarget.com zone file from ns1 and
> ns2.exacttarget.com
> but we don't delegate s6 in the exacttarget.com zone file ... forgot to
> enter it in the zone file ...
> how is it that s6.exacttarget.com and its contents resolve properly from
> everywhere?
> Seems BIND is helping us out behind the scenes somehow. Right?
> Confused.
> Thanks,
> Marty
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