From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jet" Subject: TCP flags Date: Wed, 6 Nov 2002 16:03:47 +0800 Sender: netfilter-admin@lists.netfilter.org Message-ID: <005401c2856b$099aa5c0$0bc8c80a@dolphin> 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" Helo, Can anyone just explain what is this means? iptables -A INPUT -p tcp --tcp-flags SYN,FIN SYN,FIN -j DROP I don't quite understand why there is a white space between SYN,FIN and SYN,FIN. .//Jet