Question and response
Question
dig api2.etelecom.ru. NS
Answer
api2.etelecom.ru. 5 CNAME billing.etelecom.ru.
Authority
ETELECOM.RU. 3048 SOA ns.gblnet.RU. noc.ETELECOM.RU. 2026035108 10800 1200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0