dns2.itservice4u.pl has no NS records.
NS records for this zone are defined at itservice4u.pl.
NS records for this zone are defined at itservice4u.pl.
Question and response
Question
dig dns2.itservice4u.pl. NS
Answer
The response has no answer records.
Authority
itservice4u.pl. 3600 SOA dns1.itservice4u.pl. hostmaster.itservice4u.pl. 2025120301 900 600 86400 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0