h.tt.			30 IN SOA h.tt. root.h.tt. (
				2015062500 ; serial
				7200       ; refresh (2 hours)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				7200       ; minimum (2 hours)
				)

h.tt.			0 IN A	43.154.18.11

Name servers:
h.tt.			30 IN NS ns2.ndns.cn.
h.tt.			30 IN NS ns1.ndns.cn.