shell:$ nslookup -timeout=2 -retry=1 'courseweb.sliit.lk'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
courseweb.sliit.lk	canonical name = 5smes5a.ng.impervadns.net.
Name:	5smes5a.ng.impervadns.net
Address: 45.60.62.141