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Network Security Firewalls
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Re: cant connect to port 80

from [Nicolas Haller] Network Security [Permanent Link]
Subject: Re: cant connect to port 80
Date: Thu, 25 Aug 2005 00:00:38 +0200 
On Mon, Aug 22, 2005 at 09:59:33AM +0300, Stefan Samfirescu wrote:

The line with the state match accepts only "NEW" packets on ports 80 and 
443 - maybe this is your problem. You should remove the state match and 
accept all packets destined to these ports:


You can also add states ESTABLISHED and RELATED or more simple, replace
NEW by !INVALID. With thati, all odd and malformed packets will be not
accepted.

$IPT -t filter -A FORWARD -i eth1 -o eth2 -m multiport -p tcp --dport 
80,443 -m state --state ! INVALID -j ACCEPT

-- 
Nicolas Haller
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