shell:$ nslookup -timeout=2 -retry=1 'mrt.ac.lk'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	mrt.ac.lk
Address: 192.248.8.88
;; communications error to 75.98.161.224#53: timed out
Name:	mrt.ac.lk
Address: 2401:dd00:10:1::88