From: Elver Loho <kernelpenguin@hot.ee>
To: netfilter@lists.netfilter.org
Subject: Matching misc TCP header fields
Date: Thu, 14 Aug 2003 08:27:11 +0300 [thread overview]
Message-ID: <200308140827.11478.kernelpenguin@hot.ee> (raw)
In-Reply-To: <20030814182810.GA2123@linux.local>
Any quick hints on how to match misc TCP header fields such as the window
size? This new "worm" out there that sends portscans from spoofed IP
addresses setting window size to 55808 is pretty interesting. I've captured
some interesting traffic with that window size using tcpdump. How to do the
same using netfilter? Quick search on the manpage didn't reveal anything
related. Same result with a quick google query.
Elver
next prev parent reply other threads:[~2003-08-14 5:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-14 18:28 can someone check this simple firewall? Payal Rathod
2003-08-13 18:58 ` Gavin Hamill
2003-08-14 5:27 ` Elver Loho [this message]
2003-08-14 7:08 ` Matching misc TCP header fields Maciej Soltysiak
2003-08-14 10:18 ` can someone check this simple firewall? Ralf Spenneberg
2003-08-14 11:01 ` Chris Wilson
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