finding out parent DNS of local DNS or local forwarder (provided FQDN is not defined)

[Kevin Darcy]

Vishwas wrote:
> Hello, (sorry for the previous mail with incomplete info.)
>
> 1. What is the way to find out the parent DNS of local DNS server? I
> have no access to the local DNS, except port 53. And the local network
> has not been registered with any DNS.
>
> 2. If there is a way to find out parent DNS of local DNS, can I trace
> all the DNSes until the root server?
>
>   
Delegations go "down", not "up". Although you can trace a delegation 
chain for a particular zone down from the root to (potentially) a 
particular nameserver, there's no good, reliable way to start with the 
name of a particular nameserver, and find all of the delegations that 
point to it.

Is that what you meant? Or did you have some other definition of 
"parent", in the DNS context?

                                                                         
                              -Kevin