Question and response
Question
dig cntech.net. PTR
Answer
The response has no answer records.
Authority
cntech.net. 900 SOA host1.cntech.net. webmaster.cntech.net. 2022012706 10800 1800 1209600 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0