shell:$ nslookup -timeout=2 -retry=1 'tri.cloudns.asia'
Server: 75.98.161.224
Address: 75.98.161.224#53
Non-authoritative answer:
Name: tri.cloudns.asia
Address: 219.92.91.37
Name: tri.cloudns.asia
Address: 128.199.238.109
Name: tri.cloudns.asia
Address: 180.214.232.99
;; 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
| 