shell:$ nslookup -timeout=2 -retry=1 'harvard.com'
Server: 1.1.1.1
Address: 1.1.1.1#53
Non-authoritative answer:
Name: harvard.com
Address: 104.21.63.248
Name: harvard.com
Address: 172.67.173.99
Name: harvard.com
Address: 2606:4700:3035::6815:3ff8
Name: harvard.com
Address: 2606:4700:3031::ac43:ad63
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