From mboxrd@z Thu Jan 1 00:00:00 1970 From: kalpesh@kalupurbank.com Subject: help Date: Sat, 8 Mar 2003 11:40:17 +0530 Sender: netfilter-devel-admin@lists.netfilter.org Message-ID: <65256CE2.001F9E17.00@vikramnt> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: To: netfilter-devel@lists.netfilter.org Content-Disposition: inline Errors-To: netfilter-devel-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: List-Id: netfilter-devel.vger.kernel.org help Slow respose after using IPTABLES Hi all, My mail server is runnig on Redhat 7.2 with Sendmail. Now I want to use IPTABLES for the Security Point of view. For this I made test server and implemented IPTABLES on it. But after using IPTABLES respose from the server is SLOW when i use POP3 clients but it works. I am using following script. # Deny All /sbin/iptables -P INPUT DROP /sbin/iptables -P FORWARD DROP /sbin/iptables -P OUTPUT DROP # Local host /sbin/iptables -A INPUT -s localhost -d localhost -j ACCEPT /sbin/iptables -A OUTPUT -s localhost -d localhost -j ACCEPT # ICMP /sbin/iptables -A INPUT -s $INTRANET -d $MYHOST -p icmp -j ACCEPT /sbin/iptables -A OUTPUT -s $MYHOST -d $INTRANET -p icmp -j ACCEPT # SMTP /sbin/iptables -A INPUT -s $INTRANET -d $MYHOST -p tcp --dport smtp -j ACCEPT /sbin/iptables -A OUTPUT -s $MYHOST -d $INTRANET -p tcp --sport smtp -j ACCEPT # POP3 /sbin/iptables -A INPUT -s $INTRANET -d $MYHOST -p tcp --dport pop3 -j ACCEPT /sbin/iptables -A OUTPUT -s $MYHOST -d $INTRANET -p tcp --sport pop3 -j ACCEPT Any suggestions ? help ? Please with warm regards kalpesh