OK Chris, thanks a lot.....I'm using Squid + Squidguard now in transparent
mode.

HTTPS filter with Squidguard now works OK, but HTTP doesn't. I followed a
basic tutorial using port 3128 for HTTP and 3129 for HTTPS, but I can't
find solve the problem.

Can you suggest me something to review ?

Thanks a lot,

ADAM



2017-10-19 15:35 GMT-03:00 Chris L <[email protected]>:

>
> > On Oct 19, 2017, at 8:36 AM, Adam Cage <[email protected]> wrote:
> >
> > Dear Volker and others,
> >
> > If I just inspect on host name only, do I have to create a CA and
> > Certificate to install in the proxy server of pfSense anyway ???
> >
> > Thnks a lot,
> >
> > ADAM
>
> You do have to create a CA and tell squid to use it but it is not used to
> spin up certificates and it does not have to be installed to the clients’
> trusted stores if you are only using peek/splice.
>
> I am not sure if the requirement is due to the GUI form or squid itself.
> End result is the same regardless.
>
>
> >
>
> > 2017-10-12 17:24 GMT-03:00 Volker Kuhlmann <[email protected]>:
> >
> >> On Fri 13 Oct 2017 08:15:20 NZDT +1300, Adam Cage wrote:
> >>
> >>> This is useful to filter facebook, twitter, gmail and other HTTPS
> sites,
> >>> just taking into account the URL ??? What can't I block for example ???
> >>
> >> Look at squidguard rules - they're in 3 sections: hosts only, URLs, and
> >> general regexp. With http all 3 of them work (within the bugginess of
> >> squidguard and pfsense anyway).
> >>
> >> With https the URL is encrypted, except for the host name part. I.e. the
> >> SSL connection to the server is established on the host part only, and
> >> the client sends the full URL only over the SSL connection once
> >> established.
> >>
> >> So you have 2 options for https:
> >>
> >> 1) Full MITM attack, requiring client cert installs on all clients so
> >> that the clients establish encrypted connections with the key of your
> >> attack server (aka firewall) instead, and you have a chance of
> >> inspecting the content.
> >>
> >> 2) Inspect on host name only, that part is not encrypted.
> >>
> >> As everything is moving to http it's becoming seriously difficult to use
> >> squidguard as outgoing filter to get rid of all the shitvertising and
> >> privacy invading user tracking rubbish (which wastes my time, bandwidth
> >> and money for absolutly zero gain to me).
> >>
> >> Volker
> >>
> >> --
> >> Volker Kuhlmann                 is list0570 with the domain in header.
> >> http://volker.top.geek.nz/      Please do not CC list postings to me.
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