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RE: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

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Lukas Tribus
August 26, 2013 11:28AM
Hi!


> If this were the root cause, wouldn't the cURL call fail in the way way,
> regardless of the CURLOPT_SSL_VERIFYPEER value? In other words, it
> doesn't seem like changing this cURL option would change the number of
> backend processes required to handle the request(s). But I could be wrong.

Yes, it there is a difference. CURLOPT_SSL_VERIFYPEER = true probably masks
your real problem, because it fails at SSL level (due to certificate
validation failure; after all, thats why you disabled it, right?).

So the HTTP request passes only when you disable certificate validation,
which is way you see the 504 error only when its disabled. That doesn't
mean there is a problem with curl or SSL. It means there is a problem
with your backend.



> Any further troubleshooting tips would be much appreciated.

Triple check that your backend can handle multiple requests simultanously
and that your script doesn't somehow create a deadlook (requesting the
output of itself).

Check FCGI logs. If that doesn't help, increment the debug levels on nginx
and FCGI.




Regards,

Lukas
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Subject Author Posted

504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

Ben Johnson August 23, 2013 12:48PM

Re: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

Maxim Dounin August 23, 2013 02:08PM

Re: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

Ben Johnson August 23, 2013 02:42PM

Re: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

Maxim Dounin August 23, 2013 03:24PM

Re: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

Ben Johnson August 23, 2013 04:30PM

Re: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

Cool August 23, 2013 07:02PM

Re: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

itpp2012 August 24, 2013 05:29AM

Re: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

Ben Johnson August 26, 2013 10:40AM

RE: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

Lukas Tribus August 26, 2013 11:28AM

Re: 504 Gateway Time-out when calling curl_exec() in PHP with SSL peer verification (CURLOPT_SSL_VERIFYPEER) off

Ben Johnson August 28, 2013 09:46AM



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