On 8/12/19 8:35 pm, mandev wrote:
> Hi,
> 
> I am using pfsense with squid and squidguard for web filtering without
> client side certificate installation. I did manage to block pages and mostly
> error free internet traffic. But for the last thing i cannot work it. I want
> to redirect users to a block page and i did this with http but cannot do
> this with https. 

You cannot redirect a CONNECT transaction. It is a request to open a tunnel.

If you wish to continue using the very obsolete and unmaintained
squidguard tool you will need to add this to your squid.conf:

 url_rewrite_access deny CONNECT


To do anything like send error pages to users with intercepted HTTPS
traffic requires SSL-Bump to decrypt the tunnel contents first.

Amos
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