51linux.cn.		30 IN SOA chan.ns.cloudflare.com. dns.cloudflare.com. (
				2358104918 ; serial
				10000      ; refresh (2 hours 46 minutes 40 seconds)
				2400       ; retry (40 minutes)
				604800     ; expire (1 week)
				1800       ; minimum (30 minutes)
				)

51linux.cn.		30 IN A	188.114.97.0
51linux.cn.		30 IN A	188.114.96.0
51linux.cn.		30 IN AAAA 2a06:98c1:3121::
51linux.cn.		30 IN AAAA 2a06:98c1:3120::

Name servers:
51linux.cn.		30 IN NS chan.ns.cloudflare.com.
51linux.cn.		30 IN NS theo.ns.cloudflare.com.