server.tyhan.cz has no NS records.
NS records for this zone are defined at tyhan.cz.
NS records for this zone are defined at tyhan.cz.
Question and response
Question
dig server.tyhan.cz. NS
Answer
The response has no answer records.
Authority
tyhan.cz. 3600 SOA ns1.ignum.com. hostmaster.ignum.cz. 2026021801 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0