Hi, I got the firewall working fine, but I can't seem to get the DMZ working....Please help! Here's my script ---------------------------------------------------------------------------- ---- #!/bin/sh # Firewall script iptables=/sbin/iptables intif="eth0" lan="eth2" dmz="eth1" dmz_ip="10.0.0.0/32" /sbin/depmod -a /sbin/modprobe iptable_nat /sbin/modprobe ipt_LOG /sbin/modprobe ipt_REJECT /sbin/modprobe ipt_MASQUERADE /sbin/modprobe ip_conntrack_ftp $iptables -P INPUT DROP $iptables -F INPUT $iptables -P OUTPUT ACCEPT $iptables -P OUTPUT DROP $iptables -F OUTPUT $iptables -P FORWARD DROP $iptables -F FORWARD $iptables -t nat -F $iptables -t nat -A POSTROUTING -o $intif -j MASQUERADE # Drops anything new from outside (Internet) #$iptables -A FORWARD -i $intif -m state ! --state NEW -j DROP # # IP Spoofing # $iptables -t nat -A PREROUTING -i $intif -s 192.168.0.0/16 -j DROP $iptables -t nat -A PREROUTING -i $intif -s 10.0.0.0/8 -j DROP $iptables -t nat -A PREROUTING -i $intif -s 172.16.0.0/24 -j DROP # # DMZ zone # $iptables -t nat -A PREROUTING -p TCP -m multiport -i $intif \ --dport 22,25,113,80,8080 -j DNAT --to 10.0.0.10 $iptables -t nat -A PREROUTING -p UDP -i $intif --dport 25 -j DNAT --to-destination 10.0.0.10 # #$iptables -A FORWARD -p TCP -i $intif -o $dmz -d $dmz_ip --dport 80 -j allowed $iptables -A FORWARD -i $dmz -o $intif -j ACCEPT $iptables -A FORWARD -i $intif -o $dmz -m state \ --state ESTABLISHED,RELATED -j ACCEPT $iptables -A FORWARD -i $lan -o $dmz -j ACCEPT $iptables -A FORWARD -i $dmz -o $lan -j ACCEPT # # LAN Section # $iptables -A FORWARD -i $lan -j ACCEPT $iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT $iptables -A INPUT -p ALL -i $lan -d 192.168.1.0/16 -j ACCEPT # All established and related packets incoming from the internet to the firewall $iptables -A INPUT -p ALL -i $intif -m state \ --state ESTABLISHED,RELATED -j ACCEPT $iptables -A OUTPUT -p ALL -s 192.168.1.0/16 -j ACCEPT $iptables -A OUTPUT -p ALL -s 127.0.0.1/32 -j ACCEPT ---------------------------------------------------------------------------- ------------------------------------
