dns2.tibus.net has no NS records.
NS records for this zone are defined at tibus.net.
NS records for this zone are defined at tibus.net.
Question and response
Question
dig dns2.tibus.net. NS
Answer
The response has no answer records.
Authority
tibus.net. 86005 SOA dns1.tibus.net. hostmaster.tibus.net. 2026021300 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0