Question and response
Question
dig proftpd.oi.com.br. NS
Answer
proftpd.oi.com.br. 5 CNAME sharedig.oi.com.br.
Authority
oi.com.br. 85 SOA ns01.oi.net.br. hostmaster.oi.com.br. 414275585 600 1800 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0