ns2.coppernet.net has no NS records.
NS records for this zone are defined at coppernet.net.
NS records for this zone are defined at coppernet.net.
Question and response
Question
dig ns2.coppernet.net. NS
Answer
The response has no answer records.
Authority
coppernet.net. 86400 SOA ns1.coppernet.net. support.coppernet.net. 338 10800 3600 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0