Daniel

the problem is solved. You were right, the proxy does not interfer with
certificates. It seems like credentials were not correct. Why I had answers
from proxy with "certificate not valid" while I was using --insecure
parameters? I don't know.
Thanks for your time

Michel

2009/10/21 Daniel Stenberg <daniel_at_haxx.se>

> On Sun, 18 Oct 2009, Michel RIGAUD wrote:
>
> ok, considering that when using a browser (IE or Firefox) the proxy does
>> not block https request (except for a window alert on the first use), would
>> you have any advices on how I can proceed to check what are the differences
>> betwwen curl queries and browser queries.
>>
>
> There shouldn't be any differences in that aspect. When traversing a proxy
> to connect to a HTTPS site, curl and browsers all send a CONNECT to the
> proxy to "tunnel" through it and then it connects for real against the
> remote server and then the client (curl or browser) verifies the peer's
> certificate.
>
> The proxy is never involved in any SSL activities as it only moves traffic
> through and has no idea of what specifics that are handled.
>
> In some (dubious) situations proxies are made to transparantly terminate
> HTTPS connections and then send off its own HTTPS connections to the remote
> server and then send that back to the client with a faked cert that makes
> the client think it speaks to the server while it in fact speaks to the
> proxy. It does require that your browser(s) have been told to accept the
> certificate your proxy inserts when it sends back "faked" HTTPS contents.
>
> But really, I don't know what kind of problem you see as I don't understand
> exactly what's going on. Can you show us a full "curl --trace-ascii - -k
> [remote]" output? What curl version on what operating system? Do you have
> any idea what proxy (software) that's in use?
>
>
> --
>
> / daniel.haxx.se
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Received on 2009-10-24