glub or authauthority NS is cached and used at a cache dns server?

[Jeff Peng]

You might want to read my this blog；
http://www.nsbeta.info/archives/115

HTH

于 2012-3-21 15:07, Felix New 写道:
>
>  when i dumpdb from the cache dns, some domain's ns records are glue 
> DNS, and others are authauthority.
>
> The TTL are different. which type is used in Cache DNS?