From: Rudolf_AT <Rudolf_AT.nf@aon.at>
To: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: IP sets: Suggestion: additional value match
Date: Thu, 6 Aug 2015 18:08:24 +0200 [thread overview]
Message-ID: <55C38678.30005@aon.at> (raw)
In-Reply-To: <55C052E8.9040101@aon.at>
Hi,
Just to let you know, regarding my previous post:
> In particular, I used SET instead of CONNMARK to implement the rules
> described by Jan Engelhardt in "Detecting and deceiving network scans".
(Has nothing to do with IP sets.)
As it turns out, some legitimate clients open and close TCP connections
in a way which makes them behave like connect scans. This makes the
attempt detecting those scans by the mentioned rules look less appealing.
Best Regards,
Rudolf
prev parent reply other threads:[~2015-08-06 16:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-30 15:29 IP sets: Suggestion: additional value match Rudolf_AT
2015-08-03 9:13 ` Jozsef Kadlecsik
2015-08-04 5:51 ` Rudolf_AT
2015-08-06 16:08 ` Rudolf_AT [this message]
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