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From: Antony Stone <Antony@Soft-Solutions.co.uk>
To: netfilter@lists.netfilter.org
Subject: Re: Rules for Blocking Proxies...
Date: Tue, 20 Apr 2004 08:35:59 +0100	[thread overview]
Message-ID: <200404200835.59747.Antony@Soft-Solutions.co.uk> (raw)
In-Reply-To: <000b01c426f6$cc216f10$36b4fea9@SABNANIS>

On Tuesday 20 April 2004 5:44 pm, Harry wrote:

> Hi All,
> I am running Fedora and Redhat 9 on two servers at my Cybercafe, connected
> on two Hi speed Lines, I have a decent firewall script, but these days I am
> facing issues about people changing the Proxy settings in order to get thru
> porn sites, can anybody suggest some rules which I can implement in the
> script that avoids connection to these servers? Suggestions are welcome.

The firewall should allow connections to remote web servers (ie TCP --dport 
80, 8080 etc) from the proxy server's IP only.

Don't allow any other IP address in your network to connect to an external 
address on dport 80.

Regards,

Antony.

-- 
"The problem with television is that the people must sit and keep their eyes 
glued on a screen; the average American family hasn't time for it."

 - Report in the New York Times, following a demonstration at the 1939 World's 
Fair.

                                                     Please reply to the list;
                                                           please don't CC me.



  parent reply	other threads:[~2004-04-20  7:35 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-20 16:44 Rules for Blocking Proxies Harry
2004-04-20  5:50 ` Rio Martin
2004-04-20  7:35 ` Antony Stone [this message]
2004-04-20 13:35 ` Alexis
2004-04-20 13:47   ` Ray Leach
2004-04-20 13:53   ` Antony Stone
2004-04-20 14:23     ` Alexis
2004-04-20 14:27     ` Alexis
2004-04-20 14:37       ` Antony Stone
2004-04-21 23:39         ` Harry
2004-04-28 17:34         ` Rules for Blocking Proxies...THANKS !! Harry
2004-04-28  6:53           ` Rio Martin

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