shorewall_code/Shorewall/help

#!/bin/sh
#
# Shorewall help subsystem - V3.0
#
#
#     This program is under GPL [http://www.gnu.org/copyleft/gpl.htm]
#
#     (c) 2003-2005 - Tom Eastep (teastep@shorewall.net)
#                     Steve Herber (herber@thing.com)
#
#	This file should be placed in /usr/share/shorewall/help
#
#	Shorewall documentation is available at http://shorewall.sourceforge.net
#
#	This program is free software; you can redistribute it and/or modify
#	it under the terms of Version 2 of the GNU General Public License
#	as published by the Free Software Foundation.
#
#	This program 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 General Public License for more details.
#
#	You should have received a copy of the GNU General Public License
#	along with this program; if not, write to the Free Software
#	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA
##################################################################################

case $1 in

address|host)
        echo "<$1>:
    May be either a host IP address such as 192.168.1.4 or a network address in
    CIDR format like 192.168.1.0/24. If your kernel and iptables contain iprange
    match support then IP address ranges of the form <low address>-<high address>
    are also permitted. If your kernel and iptables contain ipset match support
    then you may specify the name of an ipset prefaced by "+". The name of the
    ipsec may be optionally followed by a number of levels of ipset bindings
    (1 - 6) that are to be followed"
	;;

allow)
	echo "allow: allow <address> ...
    Re-enables receipt of packets from hosts previously blacklisted
    by a drop or reject command.

    Shorewall allow, drop, rejct and save implement dynamic blacklisting.

    See also \"help address\""
	;;

check)
	echo "check: check [ <configuration-directory> ]
   Performs a cursory validation of the zones, interfaces, hosts,
   rules, policy, masq, blacklist, proxyarp, nat and provider files.  Use this
   if you are unsure of any edits you have made to the shorewall configuration.
   See the try command examples for a recommended way to make changes."
	;;

clear)
	echo "clear: clear
    Clear will remove all rules and chains installed by Shoreline.
    The firewall is then wide open and unprotected.  Existing
    connections are untouched.  Clear is often used to see if the
    firewall is causing connection problems."
	;;

debug)
	echo "debug: debug
    If you include the keyword debug as the first argument to any
    of these commands:

	start|stop|restart|reset|clear|refresh|check|add|delete

    then a shell trace of the command is produced.  For example:

	shorewall debug start 2> /tmp/trace

    The above command would trace the 'start' command and
    place the trace information in the file /tmp/trace.

    The word 'trace' is a synonym for 'debug'."
	;;

drop)
	echo "$1: $1 <address> ...
    Causes packets from the specified <address> to be ignored

    Shorewall allow, drop, rejct and save implement dynamic blacklisting.

    See also \"help address\""
	;;

dump)
	echo "dump: dump

    shorewall [-x] dump

    Produce a verbose report about the firewall for problem analysis.

    (iptables -L -n -)

    When -x is given, that option is also passed to iptables to display actual packet and byte counts."
	;;

forget)
	echo "forget: forget [ <file name> ]
    Deletes /var/lib/shorewall/<file name>. If no <file name> is given then
    the file specified by RESTOREFILE in shorewall.conf is removed.

    See also \"help save\""
	;;

generate)
	echo "generate: generate [ <directory name> ] <file name>
    Compiles the current configuration into the executable file
    /var/lib/shorewall/<file name>"
	;;

help)
	echo "help: help [<command> | host | address ]
    Display helpful information about the shorewall commands."
	;;

hits)
    echo "hits: hits
    Produces several reports about the Shorewall packet log messages
    in the current /var/log/messages file."
	;;

ipcalc)
	echo "ipcalc: ipcalc { address mask | address/vlsm }
    Ipcalc displays the network address, broadcast address,
    network in CIDR notation and netmask corresponding to the input[s]."
	;;

ipdecimal)
	echo "ipdecimal: ipdecimal { <IP address> | <integer> }
    Converts an IP address into its 32-bit decimal equivalent and
    vice versa"
	;;

iprange)
	echo "iprange: iprange address1-address2
    Iprange decomposes the specified range of IP addresses into the
    equivalent list of network/host addresses."
	;;

logwatch)
	echo "logwatch: logwatch [<refresh interval>]
    Monitors the LOGFILE, $LOGFILE,
    and produces an audible alarm when new Shorewall messages are logged."
	;;

refresh)
	echo "refresh: [ -q ] refresh
    The rules involving the broadcast addresses of firewall interfaces,
    the black list, traffic control rules and ECN control rules are recreated
    to reflect any changes made.  Existing connections are untouched
    If \"-q\" is specified, less detain is displayed making it easier to spot warnings"
	;;

reject)
	echo "$1: $1 <address> ...
    Causes packets from the specified <address> to be rejected

    Shorewall allow, drop, rejct and save implement dynamic blacklisting.

    See also \"help address\""
	;;

reload)
	echo "reload: reload [ <directory name> ]

    Causes Shorewall to generate a new compiled restore file using the named directory
    as the first search directory for configuration file. If that generation is error-free,
    the generated restore file is executed."
	;;

reset)
	echo "reset: reset
    All the packet and byte counters in the firewall are reset."
	;;

restart)
	echo "restart: [ -q ] [ -n ] restart [ <configuration-directory> ]
    Restart is the same as a shorewall stop && shorewall start.
    Existing connections are maintained.
    If \"-q\" is specified, less detain is displayed making it easier to spot warnings
    If \"-n\" is specified, no changes to routing will be made"
	;;

safe-restart)
	echo "safe-restart: [ -q ] safe-restart
    Restart the same way as a shorewall restart except that previous firewall
    configuration is backed up and will be restored if you notice any anomalies
    or you are not able to reach the firewall any more."
    ;;

safe-start)
	echo "safe-start: [ -q ] safe-start
    Start the same way as a shorewall start except that in case of anomalies
    shorewall clear is issued. "
    ;;

restore)
	echo "restore: [ -n ] restore [ <file name> ]
    Restore Shorewall to a state saved using the 'save' command
    Existing connections are maintained. The <file name> names a restore file in
    /var/lib/shorewall created using "shorewall save"; if no <file name> is given
    then Shorewall will be restored from the file specified by the RESTOREFILE
    option in shorewall.conf.

    If \"-n\" is specified, no changes to routing will be made.

    WARNING: If the restore file specified by <file name> was created using the
    'shorewall generate' command and error messages are produced during 'shorewall
    restore' then your firewall is probably in an INSECURE STATE.

    YOU HAVE BEEN WARNED!!!!

    See also \"help save\", \"help generate\" and \"help forget\""
	;;

save)
	echo "save: save [ <file name> ]
    The dynamic data is stored in /var/lib/shorewall/save. The state of the
    firewall is stored in /var/lib/shorewall/<file name> for use by the 'shorewall restore'
    and 'shorewall -f start' commands. If <file name> is not given then the state is saved
    in the file specified by the RESTOREFILE option in shorewall.conf.

    Shorewall allow, drop, rejct and save implement dynamic blacklisting.

    See also \"help restore\" and \"help forget\""
	;;

show)
	echo "show: show [ <chain> [ <chain> ...] |actions|classifiers|connections|log|macros|mangle|nat|tc|zones]

    shorewall [-x] show <chain> [ <chain> ... ]  - produce a verbose report about the IPtable chain(s).
    (iptables -L chain -n -v)

    shorewall show actions - produce a list of builtin actions and actions defined in /usr/share/shorewall/actions.std and /etc/shorewall

    shorewall [-x] show mangle - produce a verbose report about the mangle table.
    (iptables -t mangle -L -n -v)

    shorewall [-x] show nat - produce a verbose report about the nat table.
    (iptables -t nat -L -n -v)

    shorewall show log - display the last 20 packet log entries.

    shorewall show macros -- displays the standard macros.

    shorewall show connections - displays the IP connections currently
	being tracked by the firewall.

    shorewall show tc - displays information about the traffic
	control/shaping configuration.

    shorewall show zones - displays the contents of all zones.

    shorewall show capabilities - displays your kernel/iptables capabilities

    When -x is given, that option is also passed to iptables to display actual packet and byte counts."
	;;

start)
	echo "start: [ -q ] [ -f ] [ -n ] start [ <configuration-directory> ]
    Start shorewall.  Existing connections through shorewall managed
    interfaces are untouched.  New connections will be allowed only
    if they are allowed by the firewall rules or policies.
    If \"-q\" is specified, less detail is displayed making it easier to spot warnings
    If \"-f\" is specified, the saved configuration specified by the RESTOREFILE option
    in shorewall.conf will be restored if that saved configuration exists. In that
    case, a <configuration-directory> may not be specified.
    If \"-n\" is specified, no changes to routing will be made".
	;;

stop)
	echo "stop: [ -n ] stop
    Stops the firewall.  All existing connections, except those
    listed in /etc/shorewall/routestopped, are taken down.
    The only new traffic permitted through the firewall
    is from systems listed in /etc/shorewall/routestopped.

    If \"-n\" is specified, no changes to routing will be made"
	;;

status)
	echo "status: status

    shorewall status

    Displays the Shorewall status (running/not-running).

    Also displays the Shorewall state as shown in the state diagram at
    http://www.shorewall.net/starting_and_stopping_shorewall.  The time and
    date when that state was reached is also displayed."
	;;

trace)
	echo "trace: trace
    If you include the keyword trace as the first argument to any
    of these commands:

	start|stop|restart|reset|clear|refresh|check|add|delete

    then a shell trace of the command is produced.  For example:

	shorewall trace start 2> /tmp/trace

    The above command would trace the 'start' command and
    place the trace information in the file /tmp/trace.

    The word 'debug' is a synonym for 'trace'."
	;;

try)
	echo "try: try [ -n ] <configuration-directory> [ <timeout> ]
    Restart shorewall using the specified configuration.  If an error
    occurs during the restart, then another shorewall restart is performed
    using the default configuration.  If a timeout is specified then
    the restart is always performed after the timeout occurs and uses
    the default configuration.

    The \"-n\" option will be passed down to the underlying commands (see
    'start', 'stop', 'restart' and 'restore')"
	;;

version)
	echo "version: version
    Show the current shorewall version which is: $version"
	;;

*)
	echo "$1: $1 is not recognized by the help command"
	;;

esac

exit 0	# always ok