#gedit /etc/firewall.conf

# vi /etc/firewall.conf

#!/bin/bash
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
                                                                                                                            
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
                                                                                                                            
# Copyright 2004-2005 by Net-Spider
# Email         : [email protected]
# -------------------------------------------------------------------

VERSION="1.2.0"
modprobe="/sbin/modprobe -v"
                                                                                                                            
# IPtables Firewall binary file default path
IPTABLES=/sbin/iptables
                                                                                                                            
# Default standard policy for iptables which could be "drop"
# or "accept" (drop = very secure).
DEFAULT_POLICY=drop
                                                                                                                            
# Block ICMP echo-requests such as ping, to enable it put "1", to disable "0"
IGNORE_ICMP=0
                                                                                                                            
# Enable/Disable world to send ICMP packets
# If IGNORE_ICMP=1, it will Allow all world to send ICMP packets
OPEN_ICMP=1
                                                                                                                            
# good protetion from syn flood with Linux kernel, set it to "1" to enable.
SYN_FLOOD_PROTECTION=1
                                                                                                                            
# Enable/Disable ICMP Redirect acceptance.
DISABLE_ICMP_REDIRECT=1

# ICMP Broadcasting protection
SMURF_PROTECTION=1

# Enable/Disabl ICMP Dead Error Messages protection
ERROR_PRO=1

# Enable/Disabl IP forwarding, enable it by putting "1" value, only if
# you use NAT or your system work as a router
IP_FORWARD=0

# Enable/Disable IP spoofing protection
SPOOF_PROTECT=1

# Enable/Disable Log Spoofed, Source Routed, Redirect Packets
LOG_PACKET=1
 
# Enable/Disabl Reduce DoS ability by reducing timeouts.
REDUCE_DOS=1
                                                                                                                            
# Log of ICMP flooding
ICMP_FLOOD_LOG=1
                                                                                                                            
# Drop Nmap Scan packets
DROP_SCAN=1

# Log Nmap Scan
SCAN_LOG=0
                                                                                                                            
# Enable this if you want TOS mangling (RFC)
MANGLE_TOS=1
                                                                                                                            
# Current log-level ("info": default kernel syslog level)
LOGLEVEL="info"

# The Default interface
interface="eth0"
                                                                                                                            
# Other trusted interface
TRUSTED_IF=""
                                                                                                                            
# NAT configuration (MASQUERADE)
SUPPORT_NAT=0
EXTERNAL_IF="eth0"              # External Interface device ( eth0, ppp0 .... )
INTERNAL_IF="eth1"              # Internal Interface device

# Proxy configuration
SUPPORT_PROXY=0

# make sure that nobody will try to cheat and use a proxy server other than yours.
# We must also make sure that nobody will try to cheat and connect to the internet directly

LAN_ID="192.168.1.1/24"		# The Network Adress
PRX_INT_IP="192.168.1.1"	# IP Adress of Proxy internal interface 
LAN_IF="eth1"			# Internal network interface
PRX_PORT="8080"			# The port which the proxy server listen to
                                                                                                                          
# Set to "1" if your system work as IRC server
IRC=0


#########################################################
#							#
#	 	    Firewall Rules			#
#							#
#########################################################

# Enable = 1,  Disable = 0

SSH=1
FTP=1
HTTP=1
HTTPS=1
SMTP=1
SMTPS=1
POP3=1
POP3s=1
IMAP=1
IMAPs=1
DNS=1
MYSQL=1
CPANEL=1
DIJICHAT=0
WEBMIN=0
TELNET=0
TFTP=0
SNMP=0
SMB=0
NFS=0
RPC=0
LDAP=0
LDAPS=0
NNTP=0
NNTPS=0
NTP=0
DHCP=0
printer=0
XWindows=0
XFontServer=0

# start-firewall

# iptables -L

# stop-firewall
Flushing firewall rules:                                   [  OK  ]
Setting chains to policy ACCEPT: nat mangle filter         [  OK  ]
Unloading iptables modules:                                [  OK  ]

# iptables-restore < /etc/firewall.save