shell:$ nslookup -timeout=2 -retry=1 'www.vnnic.vn'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	www.vnnic.vn
Address: 203.119.8.93
Name:	www.vnnic.vn
Address: 2001:dc8:0:2::93