Re: [squid-users] force the internet access only for my proxy server

Dear Roberto

  Two possible solutions there exists I my oppinion. Configure
workstations to not let people change the proxy, in Microsoft Windows
it is possible via editing Group Policy(Using Group Policy Editor).
And another one is, to use your firewall to forbid or redirect the
requests that did not pass trough your proxy.

   As you mentioned that users don't need to set a proxy server in the
internet explorer, so it seems you have squid proxy operating in
transparent mode. So the machine that the Squid running on most likely
is the internet gateway and you can do your purpose there. I mean if
there is no firewall running on that machine use the lovely powerfull
IPTABLES ( better to call Netfilter ).

  Hope it helps

Best Regards

On 4/28/06, Rodrigo Brito <rbrito@francoebarbosa.com.br> wrote:
> i have a squid proxy in my company and i don`t need to configure the
> proxy and port in the internet explore.
> i denied a lot of sites , but the users find another proxy servers in
> the internet and they configure the proxy in the internet explore for
> access denied sites.
>
> is there any way to block the internet access using another proxy ?
> i`d like to force the internet access only for my proxy server
>
>
>
>
>

--
Mehdi Sarmadi