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

Non-authoritative answer:
www.rubi.com	canonical name = rubi.com.
Name:	rubi.com
Address: 108.156.184.74
Name:	rubi.com
Address: 108.156.184.79
Name:	rubi.com
Address: 108.156.184.19
Name:	rubi.com
Address: 108.156.184.9