🚀 go-pugleaf

Hi Yahia,

I've NO PROBLEM at all if some one just removed the proxy settings from the
browser, I think I've solution for such problem.

Concerning Indy Proxy Example I've tried it but It didn't help me much, may
be I couldn't understand how it works...may be I failed to make it work...
so Please if Indy proxy is the solution I will appreciate if you can tell me
how I can make it work so I can achieve my task...

I've Indy 9 installed and I am using BCB 5 on Win XP home edition

thanks a lot for your help and support...


----- Original Message ----- 
From: "Yahia El-Qasem" <Yahia.El-Qasem@mgh.metro-ag.de>
Newsgroups: borland.public.cppbuilder.nativeapi
Sent: Sunday, August 03, 2003 02:19
Subject: Re: need suggestions


> Is it necessary to filter all URLs or is it acceptable if someone bypasses
> the filter ( i.e. by removing / changing the proxy setting from their
> browser ) ?
>
> If the last is not ok you will have to setup a proxy system like some ISPs
> do :
>
> Put your proxy on a dedicated machine inbetween the network and the
> connection to the internet : internal router <-> your proxy <-> internet.
> the internal router should be configured to route all outgoing network
> traffic to your proxy...
> there you have the ability to filter everything you want even without any
> proxy setting in the user's browser...
>
> IIRC Indy comes with an example for a simple proxy server... perhaps this
is
> a good starting point...
>
>
> If you can't do such a setup and need to run on the user's computer
locally
> then you will have to write some sort of low-level filter ( below
WinSock )
> which really need a lot of time ( I don't know of any good library for
> this ) and is pretty hard to get working under a broad range of network
> setups... and the users could easily remove it ( depending on which OS is
> running )...
>
> If you need to filter any URL and not only HTTP then you will end up
writing
> some sort "mini-firewall" which in turn will take a lot of time - IIRC
there
> was a thread in .internet.winsock or so where somebody wanted to learn
> writing a firewall and got some links with firewall source code as a
> starting point.
>
> Yahia
>
>