shell:$ nslookup -timeout=2 -retry=1 'daa.uit.edu.vn'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	daa.uit.edu.vn
Address: 45.122.249.78
Name:	daa.uit.edu.vn
Address: 118.69.123.140