shell:$ nslookup -timeout=2 -retry=1 'dn-tanzania.marmot-cloud.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
dn-tanzania.marmot-cloud.com	canonical name = sg.rr1.office-intl.alb-ingress.marmot-cloud.com.
sg.rr1.office-intl.alb-ingress.marmot-cloud.com	canonical name = alb-w0t4kg0j799s8betx0.ap-southeast-1.alb.aliyuncs.com.
Name:	alb-w0t4kg0j799s8betx0.ap-southeast-1.alb.aliyuncs.com
Address: 47.236.67.162
Name:	alb-w0t4kg0j799s8betx0.ap-southeast-1.alb.aliyuncs.com
Address: 47.236.96.120
Name:	alb-w0t4kg0j799s8betx0.ap-southeast-1.alb.aliyuncs.com
Address: 47.236.88.243