Question and response
Question
dig pbx.avantel.ru. NS
Answer
pbx.avantel.ru. 3600 NS ns1.mostcom.ru.
pbx.avantel.ru. 3600 NS ns2.mostcom.ru.
Authority
The response has no authority records.
Additional
. 0 OPT [{Extended_DNS_Error: PROHIBITED}] ; payload 1232, xrcode 0, version 0, flags 0