iphone.co.kr.		30 IN SOA ns3.dnszi.com. root.dnszi.com. (
				2023021601 ; serial
				43200      ; refresh (12 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				7200       ; minimum (2 hours)
				)

iphone.co.kr.		30 IN A	1.234.2.40

Name servers:
iphone.co.kr.		30 IN NS ns18.dnszi.com.
iphone.co.kr.		30 IN NS ns3.dnszi.com.
iphone.co.kr.		30 IN NS ns62.dnszi.com.
iphone.co.kr.		30 IN NS ns74.dnszi.com.
iphone.co.kr.		30 IN NS ns51.dnszi.com.