ipdns2.hinet.net has no NS records.
NS records for this zone are defined at hinet.net.
NS records for this zone are defined at hinet.net.
Question and response
Question
dig ipdns2.hinet.net. NS
Answer
The response has no answer records.
Authority
hinet.net. 86400 SOA ans1.hinet.net. hostmaster.hinet.net. 2026022505 300 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0