100b.tornado-node.net has no NS records.
NS records for this zone are defined at tornado-node.net.
NS records for this zone are defined at tornado-node.net.
Question and response
Question
dig 100b.tornado-node.net. NS
Answer
The response has no answer records.
Authority
tornado-node.net. 300 SOA ns.syse.no. hostmaster.syse.no. 50330 10800 1800 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0