shell:$ nslookup -timeout=2 -retry=1 'www.ssic.ir'
;; communications error to 75.98.161.224#53: timed out
Server: 69.39.86.5
Address: 69.39.86.5#53
Non-authoritative answer:
Name: www.ssic.ir
Address: 81.91.132.119
;; communications error to 75.98.161.224#53: timed out
;; communications error to 69.39.86.5#53: timed out
;; no servers could be reached
| 