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. Especially writing firewall rules becomes more complex. //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
