city.nanjo.okinawa.jp	IN	MX	mail1.city.nanjo.okinawa.jp
city.nanjo.okinawa.jp	IN	MX	mail2.city.nanjo.okinawa.jp
city.nanjo.okinawa.jp	IN	NS	ns1.city.nanjo.okinawa.jp
city.nanjo.okinawa.jp	IN	NS	ns2.city.nanjo.okinawa.jp