$TTL 86400 @ IN SOA xxxxx.ddo.jp. root.xxxxx.ddo.jp.( 2007031400 ; serial 3600 ; refresh (1 hour) 900 ; retry (15 minutes) 604800 ; expire (1 week) 86400 ; negative (1 day) ) IN NS xxxxx.ddo.jp. IN MX 10 xxxxx.ddo.jp. IN A 192.168.1.20 client IN A 192.168.1.3 fedora IN CNAME xxxxx.ddo.jp. www IN CNAME xxxxx.ddo.jp.