ns2.Uni-Bielefeld.DE has no NS records.
NS records for this zone are defined at Uni-Bielefeld.DE.
NS records for this zone are defined at Uni-Bielefeld.DE.
Question and response
Question
dig ns2.Uni-Bielefeld.DE. NS
Answer
The response has no answer records.
Authority
uni-bielefeld.de. 3540 SOA ns1.uni-bielefeld.de. hostmaster.uni-bielefeld.de. 793421855 10800 1800 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0