From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Sterenborg Subject: Re: opening connection for Tomcat Date: Thu, 08 Apr 2004 19:50:00 +0200 Sender: netfilter-admin@lists.netfilter.org Message-ID: <1081446600.2453.63.camel@katala.sterenborg.info> References: <40756C19.3010606@tin.it> <006f01c41d86$c82d6d60$51a2fea9@heretic> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <006f01c41d86$c82d6d60$51a2fea9@heretic> 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 On Thu, 2004-04-08 at 18:30, Alexis wrote: > you must change to OUTPUT the first rule at least. you're filtering all > outgoing packets. > In these rules I only see policy ACCEPT for the OUTPUT chain, so IMHO there's no filtering there. > > Hi all, > > I was in trouble opening a port for services with tomcat: > > Is this rule right? I'm behind an adsl router that forward every > > connection on port 8080 to . > > > > iptables -P INPUT DROP > > iptables -P OUTPUT ACCEPT > > iptables -P FORWARD DROP > > > > iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT > > iptables -A INPUT -p tcp -d --dport 8080 -s 0.0.0.0 -m > > state --state NEW -j ACCEPT Is your Tomcat listening on 8080/tcp ? (netstat -an|grep 8080) Are you sure that your router is forwarding all connections ? Check with a logging rule between the -m state and the -p tcp rules to see what's going on (if there is) : iptables -A INPUT -j LOG --log-prefix "_ipt:check" Gr, Rob