Zone apex
Start of authority
Email
Serial
2015121601
Refresh
3h
Retry
1h
Expire
7d
Negative cache TTL
6m
Question and response
Question
dig net-vlan20.hdc2.cz. SOA
Answer
The response has no answer records.
Authority
hdc2.cz. 0 SOA ns.hdc1.cz. zeleni.heureka.cz. 2015121601 10800 3600 604800 360
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0