Question and response
Question
dig auth1.opendns.com. A
Answer
auth1.opendns.com. 172800 A 208.69.39.2
Authority
opendns.com. 604800 NS auth1.opendns.com.
opendns.com. 604800 NS auth2.opendns.com.
opendns.com. 604800 NS auth3.opendns.com.
Additional
. 32768 OPT ; payload 4000, xrcode 0, version 0, flags 32768
auth2.opendns.com. 172800 AAAA 2a04:e4c0:53:0:0:0:0:53
auth2.opendns.com. 172800 A 146.112.60.53
auth3.opendns.com. 172800 A 208.69.39.2