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151 lines
5.2 KiB
Plaintext
151 lines
5.2 KiB
Plaintext
#
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# Shorewall version 3.0 - Sample Policy File for three-interface configuration.
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# Copyright (C) 2006 by the Shorewall Team
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# See the file README.txt for further details.
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#
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#
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# /etc/shorewall/policy
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#
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# THE ORDER OF ENTRIES IN THIS FILE IS IMPORTANT
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#
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# This file determines what to do with a new connection request if we
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# don't get a match from the /etc/shorewall/rules file . For each
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# source/destination pair, the file is processed in order until a
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# match is found ("all" will match any client or server).
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#
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# INTRA-ZONE POLICIES ARE PRE-DEFINED
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#
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# For $FW and for all of the zoned defined in /etc/shorewall/zones,
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# the POLICY for connections from the zone to itself is ACCEPT (with no
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# logging or TCP connection rate limiting but may be overridden by an
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# entry in this file. The overriding entry must be explicit (cannot use
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# "all" in the SOURCE or DEST).
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#
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# Columns are:
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#
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# SOURCE Source zone. Must be the name of a zone defined
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# in /etc/shorewall/zones, $FW or "all".
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#
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# DEST Destination zone. Must be the name of a zone defined
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# in /etc/shorewall/zones, $FW or "all"
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#
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# POLICY Policy if no match from the rules file is found. Must
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# be "ACCEPT", "DROP", "REJECT", "CONTINUE" or "NONE".
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#
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# ACCEPT - Accept the connection
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# DROP - Ignore the connection request
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# REJECT - For TCP, send RST. For all other,
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# send "port unreachable" ICMP.
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# QUEUE - Send the request to a user-space
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# application using the QUEUE target.
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# CONTINUE - Pass the connection request past
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# any other rules that it might also
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# match (where the source or
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# destination zone in those rules is
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# a superset of the SOURCE or DEST
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# in this policy).
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# NONE - Assume that there will never be any
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# packets from this SOURCE
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# to this DEST. Shorewall will not set
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# up any infrastructure to handle such
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# packets and you may not have any
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# rules with this SOURCE and DEST in
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# the /etc/shorewall/rules file. If
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# such a packet _is_ received, the
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# result is undefined. NONE may not be
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# used if the SOURCE or DEST columns
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# contain the firewall zone ($FW) or
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# "all".
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#
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# If this column contains ACCEPT, DROP or REJECT and a
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# corresponding common action is defined in
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# /etc/shorewall/actions (or
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# /usr/share/shorewall/actions.std) then that action
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# will be invoked before the policy named in this column
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# is enforced.
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#
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# LOG LEVEL If supplied, each connection handled under the default
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# POLICY is logged at that level. If not supplied, no
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# log message is generated. See syslog.conf(5) for a
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# description of log levels.
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#
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# Beginning with Shorewall version 1.3.12, you may
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# also specify ULOG (must be in upper case). This will
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# log to the ULOG target and sent to a separate log
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# through use of ulogd
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# (http://www.gnumonks.org/projects/ulogd).
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#
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# If you don't want to log but need to specify the
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# following column, place "-" here.
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#
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# LIMIT:BURST If passed, specifies the maximum TCP connection rate
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# and the size of an acceptable burst. If not specified,
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# TCP connections are not limited.
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#
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# See http://shorewall.net/Documentation.htm#Policy for additional information.
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#
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###############################################################################
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#SOURCE DEST POLICY LOG LEVEL LIMIT:BURST
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#
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# Note about policies and logging:
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# This file contains an explicit policy for every combination of
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# zones defined in this sample. This is solely for the purpose of
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# providing more specific messages in the logs. This is not
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# necessary for correct operation of the firewall, but greatly
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# assists in diagnosing problems.
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#
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#
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# Policies for traffic originating from the local LAN (loc)
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#
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# If you want to force clients to access the Internet via a proxy server
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# in your DMZ, change the following policy to REJECT info.
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loc net ACCEPT
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# If you want open access to DMZ from loc, change the following policy
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# to ACCEPT. (If you chose not to do this, you will need to add a rule
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# for each service in the rules file.)
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loc dmz REJECT info
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loc $FW REJECT info
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loc all REJECT info
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#
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# Policies for traffic originating from the firewall ($FW)
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#
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# If you want open access to the Internet from your firewall, change the
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# following policy to ACCEPT and remove tine 'info' LOG LEVEL.
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$FW net REJECT info
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$FW dmz REJECT info
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$FW loc REJECT info
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$FW all REJECT info
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#
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# Policies for traffic originating from the De-Militarized Zone (dmz)
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#
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# If you want open access from DMZ to the Internet change the following
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# policy to ACCEPT. This may be useful if you run a proxy server in
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# your DMZ.
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dmz net REJECT info
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dmz $FW REJECT info
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dmz loc REJECT info
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dmz all REJECT info
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#
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# Policies for traffic originating from the Internet zone (net)
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#
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net dmz DROP info
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net $FW DROP info
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net loc DROP info
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net all DROP info
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# THE FOLLOWING POLICY MUST BE LAST
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all all REJECT info
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#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE
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