shell:$ nslookup -timeout=2 -retry=1 'viettelidc.com.vn'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	viettelidc.com.vn
Address: 125.212.138.88
Name:	viettelidc.com.vn
Address: 2402:800:20ff:4018::1111