clen.cn.		30 IN SOA jm1.alidns.com. hostmaster.hichina.com. (
				2024021412 ; serial
				3600       ; refresh (1 hour)
				1200       ; retry (20 minutes)
				86400      ; expire (1 day)
				30         ; minimum (30 seconds)
				)

clen.cn.		30 IN A	156.234.155.171

Name servers:
clen.cn.		30 IN NS jm2.alidns.com.
clen.cn.		30 IN NS jm1.alidns.com.