appschool.kr.		30 IN SOA appschool.kr. ns2.appschool.kr. (
				0          ; serial
				86400      ; refresh (1 day)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				10800      ; minimum (3 hours)
				)

appschool.kr.		30 IN A	210.114.225.20

Name servers:
appschool.kr.		30 IN NS ns2.appschool.kr.