ipaddr203.cernet.cn has no NS records.
NS records for this zone are defined at cernet.cn.
NS records for this zone are defined at cernet.cn.
Question and response
Question
dig ipaddr203.cernet.cn. NS
Answer
The response has no answer records.
Authority
cernet.cn. 86400 SOA ns.cernet.cn. postmaster.cernet.cn. 2022122101 28800 7200 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0