Question and response
Question
dig mail-lb02.lovit.ru. NS
Answer
mail-lb02.lovit.ru. 5 CNAME exch-lb02.tut.net.
Authority
tut.net. 728 SOA ns1.tut.net. noc.tut.net. 2026031000 3600 600 86400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0