intmk.cn.		30 IN SOA now1.dns.com. admin.dns.com. (
				1734698582 ; serial
				7200       ; refresh (2 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)

intmk.cn.		30 IN A	160.121.57.20

Name servers:
intmk.cn.		30 IN NS now1.dns.com.
intmk.cn.		30 IN NS now2.dns.com.