Zone apex
Start of authority
Email
Serial
2020014674
Refresh
8h
Retry
2h
Expire
21d
Negative cache TTL
15m
Question and response
Question
dig _sip._udp.cesnet.cz. SOA
Answer
The response has no answer records.
Authority
cesnet.cz. 900 SOA nsa.cesnet.cz. hostmaster.cesnet.cz. 2020014674 28800 7200 1814400 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0