cyborg.cpu.lublin.pl has no NS records.
NS records for this zone are defined at cpu.lublin.pl.
NS records for this zone are defined at cpu.lublin.pl.
Question and response
Question
dig cyborg.cpu.lublin.pl. NS
Answer
The response has no answer records.
Authority
cpu.lublin.pl. 86400 SOA ns1.lublin.pl. dns.man.lublin.pl. 9907479 14400 7200 2419200 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0