shell:$ nslookup -timeout=2 -retry=1 'tech.cmb.ac.lk'
;; communications error to 1.1.1.1#53: timed out
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	tech.cmb.ac.lk
Address: 192.248.16.88
;; communications error to 1.1.1.1#53: timed out