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We've been experiencing connectivity issues. Pre-establish connections work, and using IP's directly does too. Eg:

DANIELs-MacBook-Air-2:~ dani [master] $ ping
PING ( 56 data bytes
64 bytes from icmp_seq=0 ttl=45 time=110.700 ms

But same server using instead.

DANIELs-MacBook-Air-2:~ dani [master] $ ping
ping: cannot resolve Unknown host

At first I thought it was a DNS problem, so I set the Router DNS and my machine to use:

Which are GoogleDNS servers and OpenDNS servers. So what else can't it be that machines are improperly resolving.


Based on comment, I tried resolving and passing in the DNS server directly and still had a timeout:

$ dig @

; <<>> DiG 9.8.3-P1 <<>> @
; (1 server found)
;; global options: +cmd
;; connection timed out; no servers could be reached
share|improve this question
try dig @ and see what the response is. – Wesley Mar 21 '13 at 18:19
Do you have nscd or something else running that could be caching negative results? – spoovy Mar 21 '13 at 19:27
Are you allowing port 53 udp in/out on your firewall. If the response can't be returned you won't have DNS. – Matt Mar 21 '13 at 20:39
@WesleyDavid Great idea. I still couldn't resolve google. – daniel Mar 21 '13 at 20:41
@matt Yes, is not a firewall issue. Internet works 90% of time. – daniel Mar 21 '13 at 20:42

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