shell:$ nslookup -timeout=2 -retry=1 'www.bangabhaban.gov.bd'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	www.bangabhaban.gov.bd
Address: 159.13.21.187
Name:	www.bangabhaban.gov.bd
Address: 131.186.51.76