12306.com.		30 IN SOA ns3.dns.com. admin.dns.com. (
				1564395925 ; serial
				7200       ; refresh (2 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)

12306.com.		30 IN A	112.74.143.83

Mail exchangers:
12306.com.		30 IN MX 10 mxbiz2.qq.com.
12306.com.		30 IN MX 5 mxbiz1.qq.com.

Name servers:
12306.com.		30 IN NS ns3.dns.com.
12306.com.		30 IN NS ns4.dns.com.