;sub.ash.jp.zone $ORIGIN sub.ash.jp. $TTL 86400 @ IN SOA ns01.ash.jp. root.ash.jp. ( 2001050101 ; Serial 10800 ; Refresh after 3 hours 3600 ; Retry after 1 hour 604800 ; Expire after 1 week 86400 ) ; Minimum TTL of 1 day IN NS ns01 IN NS ns02 IN MX 10 mx01 IN MX 20 mx02 ; sv01 IN A 192.168.0.1 pc01 IN A 192.168.0.101 gw01 IN A 192.168.0.253 gw02 IN A 192.168.0.254 ; ns01 IN A 192.168.0.253 ns02 IN A 192.168.0.254 mx01 IN A 192.168.0.1 mx02 IN A 192.168.0.254 ; www IN CNAME sv01