ns2.simdev.ru has no NS records.
NS records for this zone are defined at simdev.ru.
NS records for this zone are defined at simdev.ru.
Question and response
Question
dig ns2.simdev.ru. NS
Answer
The response has no answer records.
Authority
simdev.ru. 3600 SOA ns1.simdev.ru. hotmail.simdev.ru. 2026012000 3600 1800 604800 3600
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0