dns.baomang.net has no NS records.
NS records for this zone are defined at baomang.net.
NS records for this zone are defined at baomang.net.
Question and response
Question
dig dns.baomang.net. NS
Answer
The response has no answer records.
Authority
baomang.net. 3600 SOA dns.baomang.net. hostmaster.baomang.net. 1261239809 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0