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

Felix New moxnet at gmail.com
Wed Mar 21 07:07:34 UTC 2012


Dear all,

we can get a domain's NS record from two address: registry's top level dns;
the domain's authority dns.

for example the domain hgbbs.com, and its dns is  f1g1ns1.dnspod.net./
f1g1ns2.dnspod.net.

we can get hgbbs.com's glue ns records from a.gtld-servers.net:

hgbbs.com.              172800     NS      f1g1ns1.dnspod.net.
                               172800     NS      f1g1ns2.dnspod.net.

also we can get its authority ns records from f1g1ns1.dnspod.net or
f1g1ns2.dnspod.net:

hgbbs.com. 600 IN NS f1g1ns1.dnspod.net.
                                600 IN NS f1g1ns2.dnspod.net.


 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?


-- 
Best regards.
Felix New
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/bind-users/attachments/20120321/eda186ae/attachment.html>


More information about the bind-users mailing list