shorewall_code/Samples/two-interfaces/policy
2004-11-10 21:11:00 +00:00

92 lines
3.3 KiB
Plaintext

#
# Shorewall 2.2 -- Sample Policy File For Two Interfaces
#
# /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).
#
# 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"
#
# WARNING: Firewall->Firewall policies are not allowed; if
# you have a policy where both SOURCE and DEST are $FW,
# Shorewall will not start!
#
# POLICY Policy if no match from the rules file is found. Must
# be "ACCEPT", "DROP", "REJECT", "CONTINUE" Or "NONE"
#
# ACCEPT
# Accept the connection
# DROP
# Ignore the connection request.
# REJECT
# For TCP, send RST. For all other, send
# "port unreachable" ICMP.
# CONTINUE
# Pass the connection request past
# any other rules that it might also
# match (where the source or destination
# zone in those rules is a superset of
# the SOURCE or DEST in this policy)
# NONE
# Assume that there will never be any
# packets from this SOURCE to this
# DEST. Shorewall will not set up any
# infrastructure to handle such packets
# and you may not have any rules with
# this SOURCE and DEST in the /etc/shorewall/rules
# file. If such a packet is received the result
# is undefined. None may not be used if the SOURCE
# or DEST columns contain the firewall zone ($FW)
# or "all"
#
# If this column contains ACCEPT, DROP or REJECT and a
# corresponding common action is define in /etc/shorewall/actions
# (or /usr/share/shorewall/actions.std) then that column will be
# invoked before the policy named in this column is inforced.
#
# 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.
#
# As shipped, the default policies are:
#
# 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 LIMIT:BURST
loc net ACCEPT
# If you want open access to the Internet from your Firewall
# remove the comment from the following line.
#fw net ACCEPT
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