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 <myprivateip>.
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 <myprivateip> --dport 8080 -s 0.0.0.0 -m state --state NEW -j ACCEPT