50zc.com.		30 IN SOA ns1.xundns.com. nsadmin.xundns.com. (
				159656     ; serial
				3600       ; refresh (1 hour)
				600        ; retry (10 minutes)
				604800     ; expire (1 week)
				600        ; minimum (10 minutes)
				)

50zc.com.		30 IN A	127.0.0.1

Mail exchangers:
50zc.com.		30 IN MX 10 mxdomain.qq.com.

Name servers:
50zc.com.		30 IN NS ns2.xundns.com.
50zc.com.		30 IN NS ns1.xundns.com.