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

Non-authoritative answer:
mail.yahoo.com	canonical name = edge.gycpi.b.yahoodns.net.
Name:	edge.gycpi.b.yahoodns.net
Address: 69.147.65.251
Name:	edge.gycpi.b.yahoodns.net
Address: 69.147.65.252
Name:	edge.gycpi.b.yahoodns.net
Address: 2001:4998:60:807::1
Name:	edge.gycpi.b.yahoodns.net
Address: 2001:4998:60:807::2