Question and response
Question
dig cntech.net. NS
Answer
cntech.net. 900 NS host1.cntech.net.
cntech.net. 900 NS us.hketc.net.
cntech.net. 900 NS host2.cntech.net.
cntech.net. 900 NS ca.hketc.net.
Authority
The response has no authority records.
Additional
host1.cntech.net. 900 A 157.245.195.0
host2.cntech.net. 900 A 139.162.27.162
us.hketc.net. 900 A 202.155.202.114
ca.hketc.net. 900 A 116.92.229.27
host1.cntech.net. 900 AAAA 2400:6180:0:d0:0:0:132b:3001
host2.cntech.net. 900 AAAA 2400:8901:0:0:f03c:93ff:fe89:a03a
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0