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Re: net::err_cert_common_name_invalid just in squid page with dstdomain block

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Everything can be much simpler. If the deny is redirected to the local
web server with https, and the server certificate does not have the
correct CN - or there is no subjectAltName - Chrome will give such an error.


06.12.2017 3:08, Alex Rousskov пишет:
> On 12/05/2017 12:33 PM, erdosain9 wrote:
>
>> i dont get it, how this is possible, if the bumping is working well. 
> Depending on your configuration and traffic, Squid may have more origin
> server information when generating certificates for (future)
> successfully bumped connections compared to when generating certificates
> for (future) error responses. Lack of information often leads to bumping
> failures.
>
>
>> This is log from Chrome with port 
> I did not find the client source port in your access log lines. 80 and
> 443 are server ports. If you were using the correct %>p code, try the
> opposite one (%<p) and file a bug report. You can always log both, of
> course.
>
> Also, to reduce analysis time in the future, while working on this
> specific thread/question, please post only access log lines related to a
> single problematic TCP connection that starts with a CONNECT request.
> There is no need to post other/unrelated traffic.
>
>
>> "How do you compare the two certificates? "
>>
>> I see the certificate, and look detail (both, firefox and chrome).
>> <http://squid-web-proxy-cache.1019090.n4.nabble.com/file/t376870/Captura_de_pantalla_de_2017-12-05_16-25-48.png> 
> That screenshot does not show the certificate detail, so I cannot
> confirm or deny your claim that the CN is the same in both FireFox and
> Chrome cases. To see certificate details, you need to (at least) click
> on the "View Certificate" button shown on that screenshot.
>
>
>> is the same CN :squid.mydomain.lan
> That CN is wrong for bumped connections to Facebook (or WhatsApp). If
> that is indeed the certificate CN for the error response connection, and
> that connection was trying to get to Facebook (or WhatsApp), then Chrome
> may be telling you the truth!
>
> Alex.
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> squid-users@xxxxxxxxxxxxxxxxxxxxx
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-- 
"Some people, when confronted with a problem, think «I know, I'll use regular expressions.» Now they have two problems."
--Jamie Zawinsk

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* C++: Bug to the future *
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