kolbaba.utia.cas.cz has no NS records.
NS records for this zone are defined at utia.cas.cz.
NS records for this zone are defined at utia.cas.cz.
Question and response
Question
dig kolbaba.utia.cas.cz. NS
Answer
The response has no answer records.
Authority
utia.cas.cz. 86400 SOA visla.utia.cas.cz. root.utia.cas.cz. 11965 1440 3600 1500000 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0