diana.is.cuni.cz has no NS records.
NS records for this zone are defined at is.cuni.cz.
NS records for this zone are defined at is.cuni.cz.
Question and response
Question
dig diana.is.cuni.cz. NS
Answer
The response has no answer records.
Authority
is.cuni.cz. 86400 SOA golias.ruk.cuni.cz. postmaster.dec59.ruk.cuni.cz. 2026032609 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0