shell:$ nslookup -timeout=2 -retry=1 'm.weibo.cn' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: m.weibo.cn canonical name = weibo.com. Name: weibo.com Address: 36.51.224.123 Name: weibo.com Address: 36.51.224.126