shell:$ nslookup -timeout=2 -retry=1 'app.ipay.com.bd'
Server: 1.1.1.1
Address: 1.1.1.1#53
Non-authoritative answer:
Name: app.ipay.com.bd
Address: 104.21.84.17
Name: app.ipay.com.bd
Address: 172.67.184.195
Name: app.ipay.com.bd
Address: 2606:4700:3032::ac43:b8c3
Name: app.ipay.com.bd
Address: 2606:4700:3037::6815:5411
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