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Date:	Wed, 19 Sep 2012 13:50:39 -0700
From:	John Fastabend <>
To:	Chad Gray <>
CC:	Ben Hutchings <>,
	"" <>
Subject: Re: Netfilter lacks ability to filter packets via Application-origin

On 9/19/2012 1:24 PM, Ben Hutchings wrote:
> On Wed, 2012-09-19 at 15:40 -0400, Chad Gray wrote:
>> Users need the ability for Linux firewall to filter packets based on what
>> Application they are originating from. This ability is present in Mac and
>> Windows firewalls, but not Linux.
>> For example, users would like ability to open Port 80 for Firefox, but keep
>> Port 80 closed for other applications.
>> This ability enhances Privacy & Security of the user but also helps to better
>> inform the user about the comings and goings of internet traffic and what
>> application/s are causing the traffic.
> Most of the Linux Security Modules seem to support this sort of network
> policy.
> Ben.

Another approach might be to use the net_cls cgroups and set the
classid matching against it with tc or netfilters.

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