[dns-operations] a question about the nameservers

[Stephane Bortzmeyer]

On Fri, Oct 26, 2012 at 10:11:33AM +0000,
 Lutz Donnerhacke <lutz at iks-jena.de> wrote 
 a message of 65 lines which said:

> For the first query the glue data will be used (NS in the parent zone).
> For later queries the resolver should requery the NS from the authorititve
> servers.

And, at the expiration of the data, the resolver should go back to the
parent (to avoid the ghost domain attack).