shell:$ nslookup -timeout=2 -retry=1 'fb.amber143.dpdns.org' Server: 75.98.161.224 Address: 75.98.161.224#53 Non-authoritative answer: Name: fb.amber143.dpdns.org Address: 57.144.172.141 ;; communications error to 75.98.161.224#53: timed out