shorewall_code/Shorewall/policy

#
# Shorewall version 3.3 - Policy File
#
# /etc/shorewall/policy
#
#		     THE ORDER OF ENTRIES IN THIS FILE IS IMPORTANT
#
#	This file determines what to do with a new connection request if we
#	don't get a match from the /etc/shorewall/rules file . For each
#	source/destination pair, the file is processed in order until a
#	match is found ("all" will match any client or server).
#
#	                INTRA-ZONE POLICIES ARE PRE-DEFINED
#
#	For $FW and for all of the zoned defined in /etc/shorewall/zones,
#	the POLICY for connections from the zone to itself is ACCEPT (with no
#	logging or TCP connection rate limiting but may be overridden by an
#	entry in this file. The overriding entry must be explicit (cannot use
#	"all" in the SOURCE or DEST).
#
#       Similarly, if you have IMPLICIT_CONTINUE=Yes in shorewall.conf, then
#       the implicit policy to/from any sub-zone is CONTINUE. These implicit
#       CONTINUE policies may also be overridden by an explicit entry in this
#       file.
#
# Columns are:
#
#	SOURCE		Source zone. Must be the name of a zone defined
#			in /etc/shorewall/zones, $FW or "all".
#
#	DEST		Destination zone. Must be the name of a zone defined
#			in /etc/shorewall/zones, $FW or "all"
#
#	POLICY		Policy if no match from the rules file is found. Must
#			be "ACCEPT", "DROP", "REJECT", "CONTINUE" or "NONE".
#
#			ACCEPT		- Accept the connection
#			DROP		- Ignore the connection request
#			REJECT		- For TCP, send RST. For all other,
#					  send "port unreachable" ICMP.
#			QUEUE		- Send the request to a user-space
#					  application using the QUEUE target.
#			CONTINUE	- Pass the connection request past
#					  any other rules that it might also
#					  match (where the source or
#					  destination zone in those rules is
#					  a superset of the SOURCE or DEST
#					  in this policy).
#			NONE		- Assume that there will never be any
#					  packets from this SOURCE
#					  to this DEST. Shorewall will not set
#					  up any infrastructure to handle such
#					  packets and you may not have any
#					  rules with this SOURCE and DEST in
#					  the /etc/shorewall/rules file. If
#					  such a packet _is_ received, the
#					  result is undefined. NONE may not be
#					  used if the SOURCE or DEST columns
#					  contain the firewall zone ($FW) or
#					  "all".
#
#			If the policy is DROP or REJECT then the policy should
#			be followed by ":" and one of the following:
#			
#			a) The word "None" or "none". This causes any default
#			   action defined in /etc/shorewall/shorewall.conf to
#			   be omitted for this policy.
#			b) The name of an action (requires that USE_ACTIONS=Yes
#			   in shorewall.conf). That action will be invoked 
#			   before the policy is enforced.
#			c) The name of a macro. The rules in that macro will
#			   be applied before the policy is enforced. This
#			   does not require USE_ACTIONS=Yes.
#
#	LOG LEVEL	If supplied, each connection handled under the default
#			POLICY is logged at that level. If not supplied, no
#			log message is generated. See syslog.conf(5) for a
#			description of log levels.
#
#			Beginning with Shorewall version 1.3.12, you may
#			also specify ULOG (must be in upper case). This will
#			log to the ULOG target and sent to a separate log
#			through use of ulogd
#			(http://www.gnumonks.org/projects/ulogd).
#
#			If you don't want to log but need to specify the
#			following column, place "-" here.
#
#	LIMIT:BURST	If passed, specifies the maximum TCP connection rate
#			and the size of an acceptable burst. If not specified,
#			TCP connections are not limited.
#
#	Example:
#
#	a) All connections from the local network to the internet are allowed
#	b) All connections from the internet are ignored but logged at syslog
#	   level KERNEL.INFO.
#	d) All other connection requests are rejected and logged at level
#	   KERNEL.INFO.
#
#	#SOURCE		DEST		POLICY		LOG
#	#						LEVEL
#	loc		net		ACCEPT
#	net		all		DROP		info
#	#
#	# THE FOLLOWING POLICY MUST BE LAST
#	#
#	all		all		REJECT		info
#
# See http://shorewall.net/Documentation.htm#Policy for additional information.
#
###############################################################################
#SOURCE		DEST		POLICY		LOG		LIMIT:BURST
#						LEVEL
#LAST LINE -- DO NOT REMOVE