Question and response
Question
dig rt4.gblnet.ru. NS
Answer
rt4.gblnet.ru. 5 CNAME ns.gblnet.ru.
Authority
gblnet.ru. 9942 SOA ns.gblnet.ru. vvv.gblnet.ru. 2026021901 10800 1200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0