ray.univie.ac.at has no NS records.
NS records for this zone are defined at univie.ac.at.
NS records for this zone are defined at univie.ac.at.
Question and response
Question
dig ray.univie.ac.at. NS
Answer
The response has no answer records.
Authority
univie.ac.at. 600 SOA ns4.univie.ac.at. domain-admin.univie.ac.at. 702530761 3600 1800 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0