shell:$ nslookup -timeout=2 -retry=1 'sb24.ir'
;; 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:	sb24.ir
Address: 193.8.139.22
;; communications error to 1.1.1.1#53: timed out