Am Freitag 21 Januar 2011, 11:00:48 schrieb Pablo Neira Ayuso: > 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? Because I would need more than one iptables command to model a firewall rule. Or can you show me a simple iptables configuration using connmark which achieves the same as my APPROVE example above? //richard -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
