city.koga.ibaraki.jp	IN	MX	ibscmlgt-204.city.koga.ibaraki.jp.
city.koga.ibaraki.jp	IN	NS	ns004-u5rbv2k5qa7lretg.u.d-53.info.
city.koga.ibaraki.jp	IN	NS	ns004-u5rbv2k5qa7lretg.u.d-53.jp.
city.koga.ibaraki.jp	IN	NS	ns004-u5rbv2k5qa7lretg.u.d-53.net.