From mboxrd@z Thu Jan  1 00:00:00 1970
From: Martijn Lievaart <m@rtij.nl>
Subject: Re: blocking all connections
Date: Fri, 06 Apr 2007 23:15:35 +0200
Message-ID: <4616B877.90204@rtij.nl>
References: <20070406091639.ganfslae8ks4wcsk@webmail.harrisonburg.k12.va.us>	<4616719E.8050306@rtij.nl>
	<20070406154336.feq9mge2o4wocg8w@mail.harrisonburg.k12.va.us>
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To: dhottinger@harrisonburg.k12.va.us
Cc: netfilter@lists.netfilter.org

dhottinger@harrisonburg.k12.va.us wrote:
> Quoting Martijn Lievaart <m@rtij.nl>:
>
>> dhottinger@harrisonburg.k12.va.us wrote:
>>> What is the best rule for blocking all connections to an ip  
>>> address.  For example, lets say I want to block all connections to  
>>> the domain google.com.
>>
>> The domain google.com is not an ip address. If you want to block all
>> web access to google, use a transparent cache. Otherwise I see no way
>> to do this (reliably).
>>
>> M4
>
> Google.com was just an example.  Lets say I want to block all 
> connections to and from 194.67.57.26.
>

-I INPUT -j BLOCK
-I FORWARD -j BLOCK
-I OUTPUT -j BLOCK

-N BLOCK
-A BLOCK -s 194.67.57.26 -j DROP
-A BLOCK -d 194.67.57.26 -j DROP


HTH,
M4