How are the ips of DNS servers located on subdomains determined if they are specified in the ns records of the domain?

E

Evgeniy77742019-10-08 18:40:39

Domain Name System

Evgeniy7774, 2019-10-08 18:40:39

Example:
yahoo.com
ns-records:
ns1.yahoo.com.
ns2.yahoo.com.
ns3.yahoo.com.
ns4.yahoo.com.
ns5.yahoo.com.
But the yahoo.com domain does not have CNAME records with nsX subdomains How does
whois recognize their ip on nsX.yahoo.com subdomains?

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2 answer(s)

S

Sanes, 2019-10-08
@Evgeniy7774

When specifying NS in the domain of the same name, the IP address is additionally indicated.
Approximately so .

A

Alexey Dmitriev, 2019-10-08
@SignFinder

nsX.yahoo.com are not subdomains, but A records in yahoo.com.