From mboxrd@z Thu Jan 1 00:00:00 1970 From: "James Miller" Subject: Dropping SYN with FIN flag set Date: Tue, 21 Oct 2003 10:47:22 -0500 Sender: netfilter-admin@lists.netfilter.org Message-ID: Reply-To: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: netfilter@lists.netfilter.org Hi folks.. sorry if this is a really dumb question.. please don't flame me too much. Nessus is always alerting on "Remote host does not discard TCP SYN packets which have the FIN flag set". What is the best way to close up this hole? Is there a global rule I could setup or do I need to set this on a per rule basis? something like '-p tcp --tcp-flags SYN,FIN -j DROP' Thanks, Jim