shell:$ nslookup -timeout=2 -retry=1 'polnam.ac.id'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	polnam.ac.id
Address: 147.93.82.144
Name:	polnam.ac.id
Address: 2a02:4780:6:1968:0:1d4b:8d18:7