shell:$ nslookup -timeout=2 -retry=1 'fecredit.com.vn' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: fecredit.com.vn Address: 45.223.148.183 Name: fecredit.com.vn Address: 45.223.61.183