Zone apex
Start of authority
Email
Serial
3525
Refresh
4h
Retry
1h
Expire
7d
Negative cache TTL
1d
Question and response
Question
dig cas.cz. SOA
Answer
cas.cz. 86400 SOA visla.utia.cas.cz. root.utia.cas.cz. 3525 14400 3600 604800 86400
Authority
cas.cz. 86400 NS visla.utia.cas.cz.
cas.cz. 86400 NS academy.cas.cz.
cas.cz. 86400 NS nsa.ces.net.
Additional
visla.utia.cas.cz. 86400 A 147.231.12.1
academy.cas.cz. 86400 A 147.231.58.1
visla.utia.cas.cz. 86400 AAAA 2001:718:401:1:0:0:0:1
academy.cas.cz. 86400 AAAA 2001:718:404:1002:147:231:58:1
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0