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Re: Blocking SSL Port does not work

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On 06/07/10 10:33, Malvin Rito wrote:
Thanks. But how can I implement SSLBump to block port 443 for only specific
websites such as blocking Proxy Sites which use https?

I'm not clear on SSLBump too. It appears to be documented as a feature for passing HTTPS traffic to an ICAP server for further analysis and filtering. However, can it also be used within squid.conf for the non-domain part of a url in things like url regex acls, eg on an https connection allow or disallow requests containing the word "facebook" or the like?


If you want to intercept port 443, you should know thatit's called
man-in-the-middle attack since the traffic is encrypted between browser and
server. While newest squid supports this by using SSLBump feature, browers
can detect that you did this because the squid's certificate won't match the
server name.


I did not think that was the case - does it not generate certs for the requested websites on the fly, and if you've installed the CA cert in the client browser the only difference the user will notice is that the issuer is different to what they get, say, at home?

Cheers

Alex


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