shell:$ nslookup -timeout=2 -retry=1 'ucloud.cn'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	ucloud.cn
Address: 106.75.79.228
Name:	ucloud.cn
Address: 106.75.154.140
Name:	ucloud.cn
Address: 113.31.113.101