shell:$ nslookup -timeout=2 -retry=1 'udacity.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	udacity.com
Address: 108.138.85.52
Name:	udacity.com
Address: 108.138.85.58
Name:	udacity.com
Address: 108.138.85.78
Name:	udacity.com
Address: 108.138.85.41