ns2.bitternet.ua has no NS records.
NS records for this zone are defined at bitternet.ua.
NS records for this zone are defined at bitternet.ua.
Question and response
Question
dig ns2.bitternet.ua. NS
Answer
The response has no answer records.
Authority
bitternet.ua. 10800 SOA ns1.bitternet.ua. noc.columbus.te.ua. 1804050014 3600 3600 604800 172800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0