Question and response
Question
dig ia.colt.net. PTR
Answer
The response has no answer records.
Authority
ia.colt.net. 10800 SOA ns20.colt.net. hostmaster.colt.net. 2013209583 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0