Question and response
Question
dig mx.cgp.vtr.net. NS
Answer
mx.cgp.vtr.net. 5 CNAME adxironvtr.vtr.com.
Authority
vtr.com. 108 SOA ns00.vtr.net. hostmaster.vtr.net. 2025112002 10800 3600 604800 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0