I have looked at the domain NS and it seems that 2 out of 4 are not responsive at all. If you are interested in clearing out the issue and more advanced dns related issues you can try bind-us...@lists.isc.org list.

In the above list there are many dns administrators that can help and consult you on the next step to make the issue one of two:
- gone(fixed locally)
- fixed(fixed by the ns servers admins)

Eliezer

On 08/26/2014 09:20 PM, Cassiano Martin wrote:
On my squid box it shows DNS failure.

014/08/26 15:15:09.243 kid1| ModEpoll.cc(139) SetSelect: FD 8, type=1,
handler=1, client_data=0, timeout=0
2014/08/26 15:15:09.243 kid1| dns_internal.cc(1362) idnsRead:
idnsRead: FD 8: received 55 bytes from 127.0.0.1:53
2014/08/26 15:15:09.243 kid1| dns_internal.cc(1169) idnsGrokReply:
idnsGrokReply: QID 0xf689, -2 answers
2014/08/26 15:15:09.244 kid1| dns_internal.cc(1234) idnsGrokReply:
idnsGrokReply: error Server Failure: The name server was unable to
process this query. (2)
2014/08/26 15:15:09.244 kid1| dns_internal.cc(1092) idnsCallback:
Merging DNS results www.lusitania.pt A has 3 RR, AAAA has -2 RR
2014/08/26 15:15:09.244 kid1| dns_internal.cc(1125) idnsCallback:
Sending 3 (OK) DNS results to caller.
2014/08/26 15:15:09.244 kid1| ipcache.cc(498) ipcacheParse:
ipcacheParse: 3 answers for 'www.lusitania.pt'
2014/08/26 15:15:09.244 kid1| ipcache.cc(556) ipcacheParse:
ipcacheParse: www.lusitania.pt #0 212.55.134.4
2014/08/26 15:15:09.244 kid1| ipcache.cc(556) ipcacheParse:
ipcacheParse: www.lusitania.pt #1 62.28.187.7
2014/08/26 15:15:09.245 kid1| client_side_request.cc(546)
hostHeaderIpVerify: validate IP 62.28.187.7:80 non-match from Host: IP
212.55.134.4
2014/08/26 15:15:09.245 kid1| client_side_request.cc(541)
hostHeaderIpVerify: validate IP 62.28.187.7:80 possible from Host:


Thanks

2014-08-26 14:32 GMT-03:00 Bruno Guerreiro <bruno.guerre...@ine.pt>:
Hello.
Some of our user are complaning about very slow access to some sites.
After some tests i've noticed that the time between squid receiving the 
request, and actually connecting to the site itself is very high. After this 
wait all the objects in the page are fetch rather quickly.
I've tried upgrading to 3.4 but the issue persists. No auth in place, and the 
Squid server is connected to internet via full nat.
Connecting directly from the server ou via some other proxy software, like 
nginx, works perfectly.
Here are some of the sites (this are portuguese insurance companies):
www.nseguros.pt
www.lusitania.pt
www.logo.pt

Any ideas?
Thanks in advance.
Bruno Guerreiro
DMSI/IT
Instituto Nacional de Estatística
Tel: 218440448 - Ext: 1657

Bruno Guerreiro
DMSI/IT
Instituto Nacional de Estatística
Tel: 218440448 - Ext: 1657



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