shell:$ nslookup -timeout=2 -retry=1 'mt.teletalk.com.bd'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	mt.teletalk.com.bd
Address: 103.230.104.210
;; communications error to 127.0.0.53#53: timed out
;; no servers could be reached