gyeongbuk.kr	IN	NS	b.dns.kr
gyeongbuk.kr	IN	NS	c.dns.kr
gyeongbuk.kr	IN	NS	d.dns.kr
gyeongbuk.kr	IN	NS	e.dns.kr
gyeongbuk.kr	IN	NS	f.dns.kr
gyeongbuk.kr	IN	NS	g.dns.kr