On Feb 20, 2013, at 11:30 AM, skylab <skyla...@gmail.com> wrote:

> Hi,  
> I'm new in Squid configuration and I have problems with HTTPS sites.  I
> searched a lot but I didn't find a solution.
> I can't open any https site and I have different error messages in different
> browsers:  
>    - in firefox www.gmail.com  returns ssl_error_bad_cert_domain  
>    - in chrome www.gmail.com returns "The site's security certificate is
> not trusted!"
>    - in firefox www.facebook.com returns "The page isn't redirecting
> properly"
>    - in chrome www.facebook.com returns "This webpage has a redirect loop"
> (Error 310 net:: ERR_TO_MANY_REDICTS)
> 
> In cache.log there are these messages:  
>    /2013/02/19 16:02:15| clientNegotiateSSL: Error negotiating SSL
> connection on FD 16: error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert
> unknown ca (1/0)  
>    2013/02/19 16:02:15| clientNegotiateSSL: Error negotiating SSL
> connection on FD 16: error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert
> unknown ca (1/0)  
>    2013/02/19 16:02:15| clientNegotiateSSL: Error negotiating SSL
> connection on FD 16: error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert
> unknown ca (1/0)  /

Because of the "unknown ca" errors, it seems likely that you need to set 
sslproxy_cafile and/or sslproxy_capath so Squid can validate the server SSL 
certificates.

Guy

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