Question and response
Question
dig pop3.sco.ru. NS
Answer
pop3.sco.ru. 5 CNAME mail.sco.ru.
Authority
sco.ru. 7200 SOA ns.sco.ru. admin.sco.ru. 2025092922 14400 600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0