From: Ray Leach <raymondl@knowledgefactory.co.za>
To: Netfilter Mailing List <netfilter@lists.netfilter.org>
Subject: Re: Can netfilter do this?
Date: Thu, 25 Mar 2004 14:33:38 +0200 [thread overview]
Message-ID: <1080218017.2388.125.camel@raylinux.internal> (raw)
In-Reply-To: <4062C994.5000506@rochester.rr.com>
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On Thu, 2004-03-25 at 13:59, Joe Mott wrote:
> I have been searching the archived lists without any success to have the
> following question answered:
>
> Is netfilter capable of knowing when someone is crafting SMTP (or FTP or
> HTTP or ...) packets that violate RFC rules to exploit a vulnerability
> in some server?
As the other replies say, the short answer is no.
You can do some filtering using the netfilter POM patches, like string
matching, TOS, TCP flags.
Regards
Ray
--
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Raymond Leach <raymondl@knowledgefactory.co.za>
Network Support Specialist
http://www.knowledgefactory.co.za
"lynx -source http://www.rchq.co.za/raymondl.asc | gpg --import"
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next prev parent reply other threads:[~2004-03-25 12:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-25 11:59 Can netfilter do this? Joe Mott
2004-03-25 12:14 ` Gavin Hamill
2004-03-25 12:20 ` David Cannings
2004-03-25 12:33 ` Ray Leach [this message]
2004-03-25 21:56 ` Frederic de Villamil
-- strict thread matches above, loose matches on Subject: below --
2004-03-25 17:23 Daniel Chemko
2004-03-25 20:53 Small, Jim
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