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

Non-authoritative answer:
Name:	ns.nic.lk
Address: 123.231.6.18
Name:	ns.nic.lk
Address: 202.129.235.229
Name:	ns.nic.lk
Address: 203.94.66.129