rentec.co.kr.		30 IN SOA ns1.rentec.co.kr. root.rentec.co.kr. (
				2019052012 ; serial
				1200       ; refresh (20 minutes)
				120        ; retry (2 minutes)
				604800     ; expire (1 week)
				3600       ; minimum (1 hour)
				)

rentec.co.kr.		30 IN A	115.68.95.118

Mail exchangers:
rentec.co.kr.		30 IN MX 10 mail.rentec.co.kr.

Name servers:
rentec.co.kr.		30 IN NS ns3.ivyro.net.
rentec.co.kr.		30 IN NS ns1.ivyro.net.
rentec.co.kr.		30 IN NS ns2.ivyro.net.