durianit.co.kr.		30 IN SOA ns1.durianit.co.kr. jhchoi.durianit.co.kr. (
				2016031101 ; serial
				1800       ; refresh (30 minutes)
				300        ; retry (5 minutes)
				3600000    ; expire (5 weeks 6 days 16 hours)
				300        ; minimum (5 minutes)
				)

durianit.co.kr.		30 IN TXT "v=spf1 ip4:210.117.22.202 -all"

durianit.co.kr.		30 IN A	210.117.22.202

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

Name servers:
durianit.co.kr.		30 IN NS ns1.durianit.co.kr.
durianit.co.kr.		30 IN NS ns2.durianit.co.kr.