ns2.sinn.RU has no NS records.
NS records for this zone are defined at sinn.RU.
NS records for this zone are defined at sinn.RU.
Question and response
Question
dig ns2.sinn.RU. NS
Answer
The response has no answer records.
Authority
sinn.ru. 43200 SOA ns.mts-nn.ru. hostmaster.sinn.ru. 2024112600 10800 2500 604800 43200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0