Re: [PATCH 0/3][RFC] Relationship between conntrack and firewall rules

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On 21/01/11 00:02, Richard Weinberger wrote:
> Am Donnerstag 20 Januar 2011, 23:52:25 schrieb Jan Engelhardt:
>> On Thursday 2011-01-20 23:47, Richard Weinberger wrote:
>>> Hi,
>>>
>>> as a firewall admin I would like to see which rules allow
>>> the connections through my firewall.
>>> A relationship between conntrack and firewall rules would be nice.
>>> The next five patches bring this feature to the Linux Netfilter.
>>>
>>> First a small example.
>>> Consider this iptables rules:
>>> -A INPUT -m state --state ESTABLISHED,RELATED -j APPROVE --rule-id 1
>>> -A OUTPUT -m state --state NEW,ESTABLISHED,RELATED -j APPROVE --rule-id 2
>>> -A INPUT -p tcp --dport 22 -m state --state NEW -j APPROVE --rule-id 3
>>> -A INPUT -p icmp -m state --state NEW -j APPROVE --rule-id 4
>>>
>>> The APPROVE target is the same as ACCEPT but it stores also a rule id into
>>> the connection tracking entry.
>>
>> What about connmark? You could have used that. Perhaps combined with the
>> use of -j TRACE that can show which rules were processed before a
>> verdict was issued.
> 
> Yeah, I know commark and TRACE but they are quite clumsy to use for such a purpose.

Why are the clumsy for this purpose?
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