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That's all there is to it!

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For instructions on using these sample configurations, please see
http://www.shorewall.net/shorewall_quickstart_guide.htm
Shorewall Samples
Copyright (C) 2006 by the following authors:
Thomas M. Eastep
Paul D. Gear
Cristian Rodriguez
Francesca Smith
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
Sample files are licensed under the LGPL, please see the LICENSE file or
http://www.gnu.org/licenses/lgpl.html for more details.

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For instructions on using this sample configuration, please see
http://www.shorewall.net/standalone.htm
Shorewall Samples
Copyright (C) 2006 by the following authors:
Thomas M. Eastep
Paul D. Gear
Cristian Rodriguez
Francesca Smith
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
Sample files are licensed under the LGPL, please see the LICENSE file or
http://www.gnu.org/licenses/lgpl.html for more details.

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#
# Shorewall version 4.0 - Sample Interfaces File for one-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-interfaces"
#
# For additional information, see
# http://shorewall.net/Documentation.htm#Interfaces
#
###############################################################################
#ZONE INTERFACE BROADCAST OPTIONS
net eth0 detect tcpflags,nosmurfs
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Policy File for one-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#-----------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-policy"
#
# See http://shorewall.net/Documentation.htm#Policy for additional information.
#
###############################################################################
#SOURCE DEST POLICY LOG LEVEL LIMIT:BURST
$FW net ACCEPT
net $FW DROP info
net all DROP info
# The FOLLOWING POLICY MUST BE LAST
all all REJECT info
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Rules File for one-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------------------------------------
# For information on entries in this file, type "man shorewall-rules"
#
# For more information, see http://www.shorewall.net/Documentation.htm#Zones
#
#############################################################################################################
#ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL RATE USER/ MARK
# PORT PORT(S) DEST LIMIT GROUP
# Drop Ping from the "bad" net zone.. and prevent your log from being flooded..
Ping/DROP net $FW
# Permit all ICMP traffic FROM the firewall TO the net zone
ACCEPT $FW net ipv6-icmp
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

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###############################################################################
#
# Shorewall version 3.4 - Sample shorewall.conf for one-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#
# For information about the settings in this file, type "man shorewall.conf"
#
# The manpage is also online at
# http://shorewall.net/manpages/shorewall.conf.html
###############################################################################
# S T A R T U P E N A B L E D
###############################################################################
STARTUP_ENABLED=No
###############################################################################
# V E R B O S I T Y
###############################################################################
VERBOSITY=1
###############################################################################
# C O M P I L E R
# (setting this to 'perl' requires installation of Shorewall-perl)
###############################################################################
SHOREWALL_COMPILER=
###############################################################################
# L O G G I N G
###############################################################################
LOGFILE=/var/log/messages
STARTUP_LOG=
LOG_VERBOSITY=
LOGFORMAT="Shorewall:%s:%s:"
LOGTAGONLY=No
LOGRATE=
LOGBURST=
LOGALLNEW=
BLACKLIST_LOGLEVEL=
MACLIST_LOG_LEVEL=info
TCP_FLAGS_LOG_LEVEL=info
RFC1918_LOG_LEVEL=info
SMURF_LOG_LEVEL=info
LOG_MARTIANS=Yes
###############################################################################
# L O C A T I O N O F F I L E S A N D D I R E C T O R I E S
###############################################################################
IPTABLES=
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin
SHOREWALL_SHELL=/bin/sh
SUBSYSLOCK=/var/lock/subsys/shorewall
MODULESDIR=
CONFIG_PATH=/etc/shorewall:/usr/share/shorewall
RESTOREFILE=
IPSECFILE=zones
LOCKFILE=
###############################################################################
# D E F A U L T A C T I O N S / M A C R O S
###############################################################################
DROP_DEFAULT="Drop"
REJECT_DEFAULT="Reject"
ACCEPT_DEFAULT="none"
QUEUE_DEFAULT="none"
NFQUEUE_DEFAULT="none"
###############################################################################
# R S H / R C P C O M M A N D S
###############################################################################
RSH_COMMAND='ssh ${root}@${system} ${command}'
RCP_COMMAND='scp ${files} ${root}@${system}:${destination}'
###############################################################################
# F I R E W A L L O P T I O N S
###############################################################################
IP_FORWARDING=On
ADD_IP_ALIASES=Yes
ADD_SNAT_ALIASES=No
RETAIN_ALIASES=No
TC_ENABLED=Internal
TC_EXPERT=No
CLEAR_TC=Yes
MARK_IN_FORWARD_CHAIN=No
CLAMPMSS=No
ROUTE_FILTER=No
DETECT_DNAT_IPADDRS=No
MUTEX_TIMEOUT=60
ADMINISABSENTMINDED=Yes
BLACKLISTNEWONLY=Yes
DELAYBLACKLISTLOAD=No
MODULE_SUFFIX=
DISABLE_IPV6=Yes
BRIDGING=No
DYNAMIC_ZONES=No
PKTTYPE=Yes
RFC1918_STRICT=No
MACLIST_TABLE=filter
MACLIST_TTL=
SAVE_IPSETS=No
MAPOLDACTIONS=No
FASTACCEPT=No
IMPLICIT_CONTINUE=No
HIGH_ROUTE_MARKS=No
USE_ACTIONS=Yes
OPTIMIZE=1
EXPORTPARAMS=No
EXPAND_POLICIES=No
KEEP_RT_TABLES=No
DELETE_THEN_ADD=Yes
MULTICAST=No
DONT_LOAD=
AUTO_COMMENT=Yes
MANGLE_ENABLED=Yes
###############################################################################
# P A C K E T D I S P O S I T I O N
###############################################################################
BLACKLIST_DISPOSITION=DROP
MACLIST_DISPOSITION=REJECT
TCP_FLAGS_DISPOSITION=DROP
#LAST LINE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Zones File for one-interface IPv6 configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#-----------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall6-zones"
#
# For more information, see http://www.shorewall.net/Documentation.htm#Zones
#
###############################################################################
#ZONE TYPE OPTIONS IN OUT
# OPTIONS OPTIONS
fw firewall
net ipv6
#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE

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For instructions on using these sample configurations, please see
http://www.shorewall.net/three-interface.htm
Shorewall Samples
Copyright (C) 2006 by the following authors:
Thomas M. Eastep
Paul D. Gear
Cristian Rodriguez
Francesca Smith
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
Sample files are licensed under the LGPL, please see the LICENSE file or
http://www.gnu.org/licenses/lgpl.html for more details.

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#
# Shorewall version 4.0 - Sample Interfaces File for three-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-interfaces"
#
# For additional information, see
# http://shorewall.net/Documentation.htm#Interfaces
#
###############################################################################
#ZONE INTERFACE BROADCAST OPTIONS
net eth0 detect tcpflags,dhcp,routefilter,nosmurfs,logmartians
loc eth1 detect tcpflags,nosmurfs
dmz eth2 detect
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

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#
# Shorewall version 3.4 - Sample Masq file for three-interface configuration.
# Copyright (C) 2006,2007 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-masq"
#
# For additional information, see http://shorewall.net/Documentation.htm#Masq
#
##############################################################################
#INTERFACE SOURCE ADDRESS PROTO PORT(S) IPSEC MARK
eth0 eth1
eth0 eth2
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE

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#
# Shorewall version 3.4 - Sample Policy File for three-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-policy"
#
# See http://shorewall.net/Documentation.htm#Policy for additional information.
#
###############################################################################
#SOURCE DEST POLICY LOG LEVEL LIMIT:BURST
#
# Note about policies and logging:
# This file contains an explicit policy for every combination of
# zones defined in this sample. This is solely for the purpose of
# providing more specific messages in the logs. This is not
# necessary for correct operation of the firewall, but greatly
# assists in diagnosing problems. The policies below are logically
# equivalent to:
#
# loc net ACCEPT
# net all DROP info
# all all REJECT info
#
# The Shorewall-perl compiler will generate the individual policies
# below from the above general policies if you set
# EXPAND_POLICIES=Yes in shorewall.conf.
#
#
# Policies for traffic originating from the local LAN (loc)
#
# If you want to force clients to access the Internet via a proxy server
# in your DMZ, change the following policy to REJECT info.
loc net ACCEPT
# If you want open access to DMZ from loc, change the following policy
# to ACCEPT. (If you chose not to do this, you will need to add a rule
# for each service in the rules file.)
loc dmz REJECT info
loc $FW REJECT info
loc all REJECT info
#
# Policies for traffic originating from the firewall ($FW)
#
# If you want open access to the Internet from your firewall, change the
# $FW to net policy to ACCEPT and remove the 'info' LOG LEVEL.
$FW net REJECT info
$FW dmz REJECT info
$FW loc REJECT info
$FW all REJECT info
#
# Policies for traffic originating from the De-Militarized Zone (dmz)
#
# If you want open access from DMZ to the Internet change the following
# policy to ACCEPT. This may be useful if you run a proxy server in
# your DMZ.
dmz net REJECT info
dmz $FW REJECT info
dmz loc REJECT info
dmz all REJECT info
#
# Policies for traffic originating from the Internet zone (net)
#
net dmz DROP info
net $FW DROP info
net loc DROP info
net all DROP info
# THE FOLLOWING POLICY MUST BE LAST
all all REJECT info
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Routestopped File for three-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-routestopped"
#
# See http://shorewall.net/Documentation.htm#Routestopped and
# http://shorewall.net/starting_and_stopping_shorewall.htm for additional
# information.
#
##############################################################################
#INTERFACE HOST(S)
eth1 -
eth2 -
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Rules File for three-interface configuration.
# Copyright (C) 2006,2007 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-rules"
#
# For additional information, see http://shorewall.net/Documentation.htm#Rules
#
#############################################################################################################
#ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL RATE USER/ MARK
# PORT PORT(S) DEST LIMIT GROUP
#
# Accept DNS connections from the firewall to the Internet
#
DNS/ACCEPT $FW net
#
#
# Accept SSH connections from the local network to the firewall and DMZ
#
SSH/ACCEPT loc $FW
SSH/ACCEPT loc dmz
#
# DMZ DNS access to the Internet
#
DNS/ACCEPT dmz net
# Drop Ping from the "bad" net zone.
Ping/DROP net $FW
#
# Make ping work bi-directionally between the dmz, net, Firewall and local zone
# (assumes that the loc-> net policy is ACCEPT).
#
Ping/ACCEPT loc $FW
Ping/ACCEPT dmz $FW
Ping/ACCEPT loc dmz
Ping/ACCEPT dmz loc
Ping/ACCEPT dmz net
ACCEPT $FW net icmp
ACCEPT $FW loc icmp
ACCEPT $FW dmz icmp
# Uncomment this if using Proxy ARP and static NAT and you want to allow ping from
# the net zone to the dmz and loc
#Ping/ACCEPT net dmz
#Ping/ACCEPT net loc
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

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s###############################################################################
#
# Shorewall version 4.0 - Sample shorewall.conf for three-interface
# configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#
# For information about the settings in this file, type "man shorewall.conf"
#
# The manpage is also online at
# http://shorewall.net/manpages/shorewall.conf.html
#
###############################################################################
# S T A R T U P E N A B L E D
###############################################################################
STARTUP_ENABLED=No
###############################################################################
# V E R B O S I T Y
###############################################################################
VERBOSITY=1
###############################################################################
# C O M P I L E R
# (setting this to 'perl' requires installation of Shorewall-perl)
###############################################################################
SHOREWALL_COMPILER=
###############################################################################
# L O G G I N G
###############################################################################
LOGFILE=/var/log/messages
STARTUP_LOG=
LOG_VERBOSITY=
LOGFORMAT="Shorewall:%s:%s:"
LOGTAGONLY=No
LOGRATE=
LOGBURST=
LOGALLNEW=
BLACKLIST_LOGLEVEL=
MACLIST_LOG_LEVEL=info
TCP_FLAGS_LOG_LEVEL=info
RFC1918_LOG_LEVEL=info
SMURF_LOG_LEVEL=info
LOG_MARTIANS=Yes
###############################################################################
# L O C A T I O N O F F I L E S A N D D I R E C T O R I E S
###############################################################################
IPTABLES=
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin
SHOREWALL_SHELL=/bin/sh
SUBSYSLOCK=/var/lock/subsys/shorewall
MODULESDIR=
CONFIG_PATH=/etc/shorewall:/usr/share/shorewall
RESTOREFILE=
IPSECFILE=zones
LOCKFILE=
###############################################################################
# D E F A U L T A C T I O N S / M A C R O S
###############################################################################
DROP_DEFAULT="Drop"
REJECT_DEFAULT="Reject"
ACCEPT_DEFAULT="none"
QUEUE_DEFAULT="none"
NFQUEUE_DEFAULT="none"
###############################################################################
# R S H / R C P C O M M A N D S
###############################################################################
RSH_COMMAND='ssh ${root}@${system} ${command}'
RCP_COMMAND='scp ${files} ${root}@${system}:${destination}'
###############################################################################
# F I R E W A L L O P T I O N S
###############################################################################
IP_FORWARDING=On
ADD_IP_ALIASES=Yes
ADD_SNAT_ALIASES=No
RETAIN_ALIASES=No
TC_ENABLED=Internal
TC_EXPERT=No
CLEAR_TC=Yes
MARK_IN_FORWARD_CHAIN=No
CLAMPMSS=No
ROUTE_FILTER=No
DETECT_DNAT_IPADDRS=No
MUTEX_TIMEOUT=60
ADMINISABSENTMINDED=Yes
BLACKLISTNEWONLY=Yes
DELAYBLACKLISTLOAD=No
MODULE_SUFFIX=
DISABLE_IPV6=Yes
BRIDGING=No
DYNAMIC_ZONES=No
PKTTYPE=Yes
RFC1918_STRICT=No
MACLIST_TABLE=filter
MACLIST_TTL=
SAVE_IPSETS=No
MAPOLDACTIONS=No
FASTACCEPT=No
IMPLICIT_CONTINUE=No
HIGH_ROUTE_MARKS=No
USE_ACTIONS=Yes
OPTIMIZE=1
EXPORTPARAMS=No
EXPAND_POLICIES=No
KEEP_RT_TABLES=No
DELETE_THEN_ADD=Yes
MULTICAST=No
DONT_LOAD=
AUTO_COMMENT=Yes
MANGLE_ENABLED=Yes
###############################################################################
# P A C K E T D I S P O S I T I O N
###############################################################################
BLACKLIST_DISPOSITION=DROP
MACLIST_DISPOSITION=REJECT
TCP_FLAGS_DISPOSITION=DROP
#LAST LINE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Zones File for three-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-zones"
#
# For more information, see http://www.shorewall.net/Documentation.htm#Zones
#
###############################################################################
#ZONE TYPE OPTIONS IN OUT
# OPTIONS OPTIONS
fw firewall
net ipv4
loc ipv4
dmz ipv4
#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE

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For instructions on using these sample configurations, please see
http://www.shorewall.net/two-interface.htm
Shorewall Samples
Copyright (C) 2006 by the following authors:
Thomas M. Eastep
Paul D. Gear
Cristian Rodriguez
Francesca Smith
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
Sample files are licensed under the LGPL, please see the LICENSE file or
http://www.gnu.org/licenses/lgpl.html for more details.

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#
# Shorewall version 4.0 - Sample Interfaces File for two-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-interfaces"
#
# For additional information, see
# http://shorewall.net/Documentation.htm#Interfaces
#
###############################################################################
#ZONE INTERFACE BROADCAST OPTIONS
net eth0 detect dhcp,tcpflags,routefilter,nosmurfs,logmartians
loc eth1 detect tcpflags,nosmurfs
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Masq file for two-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-masq"
#
# For additional information, see http://shorewall.net/Documentation.htm#Masq
#
###############################################################################
#INTERFACE SOURCE ADDRESS PROTO PORT(S) IPSEC MARK
eth0 eth1
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Policy File for two-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-policy"
#
# See http://shorewall.net/Documentation.htm#Policy for additional information.
#
###############################################################################
#SOURCE DEST POLICY LOG LEVEL LIMIT:BURST
#
# Note about policies and logging:
# This file contains an explicit policy for every combination of
# zones defined in this sample. This is solely for the purpose of
# providing more specific messages in the logs. This is not
# necessary for correct operation of the firewall, but greatly
# assists in diagnosing problems. The policies below are logically
# equivalent to:
#
# loc net ACCEPT
# net all DROP info
# all all REJECT info
#
# The Shorewall-perl compiler will generate the individual policies
# below from the above general policies if you set
# EXPAND_POLICIES=Yes in shorewall.conf.
#
# Policies for traffic originating from the local LAN (loc)
#
# If you want to force clients to access the Internet via a proxy server
# on your firewall, change the loc to net policy to REJECT info.
loc net ACCEPT
loc $FW REJECT info
loc all REJECT info
#
# Policies for traffic originating from the firewall ($FW)
#
# If you want open access to the Internet from your firewall, change the
# $FW to net policy to ACCEPT and remove the 'info' LOG LEVEL.
# This may be useful if you run a proxy server on the firewall.
$FW net REJECT info
$FW loc REJECT info
$FW all REJECT info
#
# Policies for traffic originating from the Internet zone (net)
#
net $FW DROP info
net loc DROP info
net all DROP info
# THE FOLLOWING POLICY MUST BE LAST
all all REJECT info
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Routestopped File for two-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-routestopped"
#
# See http://shorewall.net/Documentation.htm#Routestopped and
# http://shorewall.net/starting_and_stopping_shorewall.htm for additional
# information.
#
##############################################################################
#INTERFACE HOST(S) OPTIONS
eth1 -
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

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#
# Shorewall version 4.0 - Sample Rules File for two-interface configuration.
# Copyright (C) 2006,2007 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-rules"
#
# For more information, see http://www.shorewall.net/Documentation.htm#Rules
#
#############################################################################################################
#ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL RATE USER/ MARK
# PORT PORT(S) DEST LIMIT GROUP
#
# Accept DNS connections from the firewall to the network
#
DNS/ACCEPT $FW net
#
# Accept SSH connections from the local network for administration
#
SSH/ACCEPT loc $FW
#
# Allow Ping from the local network
#
Ping/ACCEPT loc $FW
#
# Drop Ping from the "bad" net zone.. and prevent your log from being flooded..
#
Ping/DROP net $FW
ACCEPT $FW loc icmp
ACCEPT $FW net icmp
#
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

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###############################################################################
#
# Shorewall version 4.0 - Sample shorewall.conf for two-interface configuration.
# Copyright (C) 2006,2007 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#
# For information about the settings in this file, type "man shorewall.conf"
#
# The manpage is also online at
# http://shorewall.net/manpages/shorewall.conf.html
###############################################################################
# S T A R T U P E N A B L E D
###############################################################################
STARTUP_ENABLED=No
###############################################################################
# V E R B O S I T Y
###############################################################################
VERBOSITY=1
###############################################################################
# C O M P I L E R
# (setting this to 'perl' requires installation of Shorewall-perl)
###############################################################################
SHOREWALL_COMPILER=
###############################################################################
# L O G G I N G
###############################################################################
LOGFILE=/var/log/messages
STARTUP_LOG=
LOG_VERBOSITY=
LOGFORMAT="Shorewall:%s:%s:"
LOGTAGONLY=No
LOGRATE=
LOGBURST=
LOGALLNEW=
BLACKLIST_LOGLEVEL=
MACLIST_LOG_LEVEL=info
TCP_FLAGS_LOG_LEVEL=info
RFC1918_LOG_LEVEL=info
SMURF_LOG_LEVEL=info
LOG_MARTIANS=Yes
###############################################################################
# L O C A T I O N O F F I L E S A N D D I R E C T O R I E S
###############################################################################
IPTABLES=
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin
SHOREWALL_SHELL=/bin/sh
SUBSYSLOCK=/var/lock/subsys/shorewall
MODULESDIR=
CONFIG_PATH=/etc/shorewall:/usr/share/shorewall
RESTOREFILE=
IPSECFILE=zones
LOCKFILE=
###############################################################################
# D E F A U L T A C T I O N S / M A C R O S
###############################################################################
DROP_DEFAULT="Drop"
REJECT_DEFAULT="Reject"
ACCEPT_DEFAULT="none"
QUEUE_DEFAULT="none"
NFQUEUE_DEFAULT="none"
###############################################################################
# R S H / R C P C O M M A N D S
###############################################################################
RSH_COMMAND='ssh ${root}@${system} ${command}'
RCP_COMMAND='scp ${files} ${root}@${system}:${destination}'
###############################################################################
# F I R E W A L L O P T I O N S
###############################################################################
IP_FORWARDING=On
ADD_IP_ALIASES=Yes
ADD_SNAT_ALIASES=No
RETAIN_ALIASES=No
TC_ENABLED=Internal
TC_EXPERT=No
CLEAR_TC=Yes
MARK_IN_FORWARD_CHAIN=No
CLAMPMSS=No
ROUTE_FILTER=No
DETECT_DNAT_IPADDRS=No
MUTEX_TIMEOUT=60
ADMINISABSENTMINDED=Yes
BLACKLISTNEWONLY=Yes
DELAYBLACKLISTLOAD=No
MODULE_SUFFIX=
DISABLE_IPV6=Yes
BRIDGING=No
DYNAMIC_ZONES=No
PKTTYPE=Yes
RFC1918_STRICT=No
MACLIST_TABLE=filter
MACLIST_TTL=
SAVE_IPSETS=No
MAPOLDACTIONS=No
FASTACCEPT=No
IMPLICIT_CONTINUE=No
HIGH_ROUTE_MARKS=No
USE_ACTIONS=Yes
OPTIMIZE=1
EXPORTPARAMS=No
EXPAND_POLICIES=No
EXPAND_POLICIES=Yes
KEEP_RT_TABLES=No
DELETE_THEN_ADD=Yes
MULTICAST=No
DONT_LOAD=
AUTO_COMMENT=Yes
MANGLE_ENABLED=Yes
###############################################################################
# P A C K E T D I S P O S I T I O N
###############################################################################
BLACKLIST_DISPOSITION=DROP
MACLIST_DISPOSITION=REJECT
TCP_FLAGS_DISPOSITION=DROP
#LAST LINE -- DO NOT REMOVE

23
Samples6/two-interfaces/zones Normal file
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#
# Shorewall version 4.0 - Sample Zones File for two-interface configuration.
# Copyright (C) 2006 by the Shorewall Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# See the file README.txt for further details.
#------------------------------------------------------------------------------
# For information about entries in this file, type "man shorewall-zones"
#
# For more information, see http://www.shorewall.net/Documentation.htm#Zones
#
###############################################################################
#ZONE TYPE OPTIONS IN OUT
# OPTIONS OPTIONS
fw firewall
net ipv4
loc ipv4
#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE