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

Non-authoritative answer:
in.yahoo.com	canonical name = atsv2-fp-shed.wg1.b.yahoo.com.
Name:	atsv2-fp-shed.wg1.b.yahoo.com
Address: 74.6.143.26
Name:	atsv2-fp-shed.wg1.b.yahoo.com
Address: 74.6.231.21
Name:	atsv2-fp-shed.wg1.b.yahoo.com
Address: 74.6.231.20
Name:	atsv2-fp-shed.wg1.b.yahoo.com
Address: 74.6.143.25
Name:	atsv2-fp-shed.wg1.b.yahoo.com
Address: 2001:4998:44:3507::8001
Name:	atsv2-fp-shed.wg1.b.yahoo.com
Address: 2001:4998:124:1507::f000
Name:	atsv2-fp-shed.wg1.b.yahoo.com
Address: 2001:4998:124:1507::f001
Name:	atsv2-fp-shed.wg1.b.yahoo.com
Address: 2001:4998:44:3507::8000