7s.co.kr.		30 IN SOA 7s.co.kr. postmaster.7s.co.kr. (
				20040424   ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				3600000    ; expire (5 weeks 6 days 16 hours)
				43200      ; minimum (12 hours)
				)

7s.co.kr.		30 IN TXT "v=spf1  ip4:218.145.65.88 ip4:222.122.213.172 ~all"

7s.co.kr.		30 IN A	112.175.247.178

Mail exchangers:
7s.co.kr.		30 IN MX 10 7s.co.kr.

Name servers:
7s.co.kr.		30 IN NS ns2.7s.co.kr.
7s.co.kr.		30 IN NS ns.7s.co.kr.