ftp.sv2.meganet.com.pl has no NS records.
NS records for this zone are defined at sv2.meganet.com.pl.
NS records for this zone are defined at sv2.meganet.com.pl.
Question and response
Question
dig ftp.sv2.meganet.com.pl. NS
Answer
The response has no answer records.
Authority
sv2.meganet.com.pl. 180 SOA ns1.meganet.com.pl. root.sv2.meganet.com.pl. 2023090401 7200 3600 1209600 180
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0