Zone apex
Start of authority
Email
Serial
5
Refresh
1h
Retry
30m
Expire
7d
Negative cache TTL
1d
Question and response
Question
dig cerf.net. SOA
Answer
cerf.net. 3600 SOA ns-west.cerf.net. rm-hostmaster.ems.att.com. 5 3600 1800 604800 86400
Authority
cerf.net. 86400 NS ns-east.cerf.net.
cerf.net. 86400 NS ns-west.cerf.net.
Additional
ns-west.cerf.net. 3600 A 68.94.156.136
ns-east.cerf.net. 3600 A 99.99.99.136
ns-west.cerf.net. 3600 AAAA 2001:1890:1ff:9f0:68:94:156:136
ns-east.cerf.net. 3600 AAAA 2001:1890:1ff:9f1:99:99:99:136
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0