[Firewall] iptables Configuration

iptables usage:

 

Add Rules:iptables -I INPUT -p tcp --dport 22 -j ACCEPTiptables -I INPUT -p tcp --dport 1521 -j ACCEPTiptables -A INPUT -i eth0 -p tcp -s 192.168.1.0/24 --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPTSave Rules:service iptables saveOR  /etc/rc.d/init.d/iptables saveRead Statusservice iptables statusOR /etc/rc.d/init.d/iptables statusiptables -nvL --line-numberDelete Rulesiptables -D INPUT 8Update Rulesiptables -R INPUT 3 -j ACCEPT