nikkeisansyo.jp.	30 IN SOA master.dns.ne.jp. tech.sakura.ad.jp. (
				2021032700 ; serial
				3600       ; refresh (1 hour)
				900        ; retry (15 minutes)
				3600000    ; expire (5 weeks 6 days 16 hours)
				3600       ; minimum (1 hour)
				)

nikkeisansyo.jp.	30 IN A	153.127.17.120

Mail exchangers:
nikkeisansyo.jp.	30 IN MX 10 nikkeisansyo.jp.

Name servers:
nikkeisansyo.jp.	30 IN NS ns1.dns.ne.jp.
nikkeisansyo.jp.	30 IN NS ns2.dns.ne.jp.