shell:$ nslookup -timeout=2 -retry=1 'siretest.unitel.co.ao'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	siretest.unitel.co.ao
Address: 41.78.18.20
Name:	siretest.unitel.co.ao
Address: 41.78.17.248