[squid-users] Need help blocking an specific HTTPS website

[Amos Jeffries]

On 6/03/19 5:11 am, Felipe Arturo Polanco wrote:
> I confirm that, I can see TCP_DENIED requests on the access.log to
> web.whatsapp.com <http://web.whatsapp.com> but still the websites loads.
> 
> 1551192823.356     47 192.168.112.144 TCP_DENIED/403 4453 GET
> https://web.whatsapp.com/ws - HIER_NONE/- text/html
> 


Perhapse WhatsApp uses other protocols to get through when denied by the
proxy.

Have you tried blocking UDP port 80 and 443 (QUIC protocol) in your
firewall?

And of course ports 4244, 5222, 5223, 5228 and 5242.


Amos