From: Richard Weinberger <richard@nod.at>
To: Jan Engelhardt <jengelh@medozas.de>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: [PATCH 0/3][RFC] Relationship between conntrack and firewall rules
Date: Fri, 21 Jan 2011 00:02:24 +0100 [thread overview]
Message-ID: <201101210002.24922.richard@nod.at> (raw)
In-Reply-To: <alpine.LNX.2.01.1101202351050.26671@obet.zrqbmnf.qr>
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
next prev parent reply other threads:[~2011-01-20 23:02 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-20 22:47 [PATCH 0/3][RFC] Relationship between conntrack and firewall rules Richard Weinberger
2011-01-20 22:47 ` [PATCH 1/3] netfilter: add ruleid extension Richard Weinberger
2011-01-20 22:47 ` [PATCH 2/3] netfilter: add APPROVE target Richard Weinberger
2011-01-20 22:47 ` [PATCH 3/3] netfilter: implement ctnetlink_dump_ruleid() Richard Weinberger
2011-01-20 22:47 ` [PATCH] iptables: Add APPROVE target Richard Weinberger
2011-01-20 22:47 ` [PATCH] conntrack: Implement ruleid support Richard Weinberger
2011-01-20 23:17 ` [PATCH 2/3] netfilter: add APPROVE target Jan Engelhardt
2011-01-20 23:22 ` Richard Weinberger
2011-01-20 23:27 ` Jan Engelhardt
2011-01-20 23:30 ` Richard Weinberger
2011-01-20 22:52 ` [PATCH 0/3][RFC] Relationship between conntrack and firewall rules Jan Engelhardt
2011-01-20 23:02 ` Richard Weinberger [this message]
2011-01-21 10:00 ` Pablo Neira Ayuso
2011-01-21 11:13 ` Richard Weinberger
2011-01-21 11:26 ` Pablo Neira Ayuso
2011-01-21 11:56 ` Richard Weinberger
2011-01-21 12:24 ` Pablo Neira Ayuso
2011-01-21 12:53 ` Richard Weinberger
2011-01-21 13:25 ` Pablo Neira Ayuso
2011-01-21 13:38 ` Richard Weinberger
2011-01-21 13:57 ` Pablo Neira Ayuso
2011-01-21 14:11 ` Richard Weinberger
2011-01-21 15:09 ` Mr Dash Four
2011-01-21 0:04 ` Mr Dash Four
2011-01-21 0:10 ` Richard Weinberger
2011-01-21 0:13 ` Mr Dash Four
2011-01-21 9:58 ` secctx support for conntrack-tools [was Re: [PATCH 0/3][RFC] Relationship between conntrack and firewall rules] Pablo Neira Ayuso
2011-01-21 9:56 ` [PATCH 0/3][RFC] Relationship between conntrack and firewall rules Pablo Neira Ayuso
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=201101210002.24922.richard@nod.at \
--to=richard@nod.at \
--cc=jengelh@medozas.de \
--cc=netfilter-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).