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shorewall_code/Shorewall/Samples/one-interface/rules

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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"
######################################################################################################################################################################################################
#ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL RATE USER/ MARK CONNLIMIT TIME HEADERS SWITCH HELPER
# PORT PORT(S) DEST LIMIT GROUP
#SECTION ALL
#SECTION ESTABLISHED
#SECTION RELATED
#SECTION INVALID
#SECTION UNTRACKED
SECTION NEW
# Drop packets in the INVALID state
Invalid(DROP) net $FW tcp
# 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 icmp