shell:$ nslookup -timeout=2 -retry=1 'live21.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:	live21.ir
Address: 10.10.34.35
Name:	live21.ir
Address: 2001:4188:2:600:10:10:34:35