pppoe-109.234.11.124.gaztelecom.ru has no NS records.
NS records for this zone are defined at gaztelecom.ru.
NS records for this zone are defined at gaztelecom.ru.
Question and response
Question
dig pppoe-109.234.11.124.gaztelecom.ru. NS
Answer
The response has no answer records.
Authority
gaztelecom.ru. 3600 SOA ns.gaztelecom.ru. root.gaztelecom.ru. 2017081701 10800 3600 1209600 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0