ns2.MSTN.RU has no NS records.
NS records for this zone are defined at MSTN.RU.
NS records for this zone are defined at MSTN.RU.
Question and response
Question
dig ns2.MSTN.RU. NS
Answer
The response has no answer records.
Authority
mstn.ru. 600 SOA ns1.mstn.ru. hostmaster.mstn.ru. 2025121600 7200 1800 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0