sysorb01.netgroup.dk has no NS records.
NS records for this zone are defined at netgroup.dk.
NS records for this zone are defined at netgroup.dk.
Question and response
Question
dig sysorb01.netgroup.dk. NS
Answer
The response has no answer records.
Authority
netgroup.dk. 3600 SOA authns1.ngdc.net. hostmaster.ngdc.net. 2026022203 10800 3600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0