; BIND db file for example.com $TTL 30 @ IN SOA ubuntu.example.com. admin.example.com. ( 2010100401 ; serial number YYMMDDNN 14400 ; Refresh 3600 ; Retry 864000 ; Expire 30 ; Min TTL ) NS ubuntu.example.com. $ORIGIN example.com. ubuntu IN A 127.0.0.1 www IN A 127.0.0.2