2hz.org.		60 IN SOA localhost. root.2hz.org. (
				321        ; serial
				300        ; refresh (5 minutes)
				300        ; retry (5 minutes)
				604800     ; expire (1 week)
				30         ; minimum (30 seconds)
				)

2hz.org.		300 IN TXT "v=spf1 +ip4:183.76.16.48 a:auth.gate-on.net a mx
include:_spf.2hz.org -all"

2hz.org.		300 IN A 183.76.16.48

Mail exchangers:
2hz.org.		300 IN MX 10 2hz.org.

Name servers:
2hz.org.		60 IN NS ns0.mydns.jp.
2hz.org.		60 IN NS ns2.mydns.jp.
2hz.org.		60 IN NS ns1.mydns.jp.