From mboxrd@z Thu Jan 1 00:00:00 1970 From: vladimir Subject: Filtered address in can login Date: 16 Aug 2005 17:44:43 +0300 Message-ID: <1124203482.8177.18.camel@localhost> Reply-To: vladimir@fetchbook.info Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-bounces@lists.netfilter.org Errors-To: netfilter-bounces@lists.netfilter.org Content-Type: text/plain; charset="us-ascii" To: netfilter@lists.netfilter.org Hi, I have iptables-1.2.7a and 2.4.26 kernel and there is something strange. I have the following rule: iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT iptables -A INPUT -s 0/0 --protocol tcp --destination-port 80 -j ACCEPT iptables -A INPUT -s IP_ADDR --protocol tcp --destination-port 22 -j ACCEPT iptables -A INPUT -p tcp --syn -j DROP So I expect that only the specified IP_ADDR can ssh to port 22 in my server. But in /var/log/secure I see that some other IP's for example 168.179.113.141 try to login to ssh with different user names to my server. However, then I try ssh to that server not from IP_ADDR I can not, as expected. Please tell me how this 168.179.113.141 bypass my firewall. Thank you very much, Vladimir -- www.FetchBook.Info Find the lowest price - Compare more than a hundred book stores in a click