pool.luganet.ru has no NS records.
NS records for this zone are defined at luganet.ru.
NS records for this zone are defined at luganet.ru.
Question and response
Question
dig pool.luganet.ru. NS
Answer
The response has no answer records.
Authority
luganet.ru. 10800 SOA luganet.ru. hostmaster.luganet.ru. 2020122201 3600 900 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0