mx2.dobnet.cz has no NS records.
NS records for this zone are defined at dobnet.cz.
NS records for this zone are defined at dobnet.cz.
Question and response
Question
dig mx2.dobnet.cz. NS
Answer
The response has no answer records.
Authority
dobnet.cz. 7200 SOA ns1.dobnet.cz. service.dobnet.cz. 2026022302 3600 900 1209600 10800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0