Question and response
Question
dig sql2.kemsu.ru. NS
Answer
sql2.kemsu.ru. 5 CNAME sql3.kemsu.ru.
Authority
kemsu.ru. 10800 SOA ns.kemsu.ru. postmaster.kemsu.ru. 2026021901 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0