shorewall-lite8Administrative Commandsshorewall-liteAdministration tool for Shoreline Firewall Lite (Shorewall
Lite)shorewall-lite|-optionsinterface[:host-list]zoneshorewall-lite|-optionsaddressshorewall-lite|-optionsshorewall-lite|-optionsopen-number |
sourcedestprotocolportshorewall-lite|-optionsinterface[:host-list]zoneshorewall-lite|-options{ interface |
provider }shorewall-lite|-optionsaddressshorewall-lite|-optionsshorewall-lite|-options{ interface |
provider }shorewall-lite|-optionsfilenameshorewall-lite|-optionsshorewall-lite|-optionsshorewall-lite|-optionsaddressmaskaddress/vlsmshorewall-lite|-optionsaddress1address2shorewall-lite|-optionsiptables match
expressionshorewall-lite|-optionsaddressshorewall-lite|-optionsrefresh-intervalshorewall-lite|-optionsaddressshorewall-lite|-optionsiptables match
expressionshorewall-lite
source destprotocolportshorewall-lite|-optionsaddressshorewall-lite|-optionsshorewall-lite|-optionsdirectoryshorewall-lite|-optionsfilenameshorewall-lite|-optionsfunctionparameter ...shorewall-lite|-optionsfilenameshorewall-lite|-optionsshorewall-lite|-options
{|||}chainshorewall-lite|-optionsshorewall-lite|-optionsshorewall-lite|-optionsshorewall-lite|-optionseventshorewall-lite|-optionsshorewall-lite|-optionsshorewall-lite|-optionsshorewall-lite|-optionsshorewall-lite|-optionsshorewall-lite|-optionsshorewall-lite|-optionsshorewall-lite|-optionsDescriptionThe shorewall-lite utility is used to control the Shoreline Firewall
Lite (Shorewall Lite).OptionsThe and options are
used for debugging. See http://www.shorewall.net/starting_and_stopping_shorewall.htm#Trace.The nolock prevents the command from
attempting to acquire the Shorewall-lite lockfile. It is useful if you
need to include shorewall commands in the
startedextension script.The options control the amount of output that
the command produces. They consist of a sequence of the letters v and q. If the
options are omitted, the amount of output is determined by the setting of
the VERBOSITY parameter in shorewall.conf(5). Each v adds one to the effective verbosity and each
q subtracts one from the effective
VERBOSITY. Alternately, v may be followed
immediately with one of -1,0,1,2 to specify VERBOSITY. There may be no
white-space between v and the
VERBOSITY.The options may also include the letter
which causes all progress messages to be
timestamped.CommandsThe available commands are listed below.addAdds a list of hosts or subnets to a dynamic zone usually used
with VPN's.The interface argument names an interface
defined in the shorewall-interfaces(5)
file. A host-list is comma-separated list whose
elements are host or network addresses.The add command is not very robust. If
there are errors in the host-list, you
may see a large number of error messages yet a subsequent
shorewall-lite show zones command will indicate
that all hosts were added. If this happens, replace
add by delete and run the
same command again. Then enter the correct command.allowRe-enables receipt of packets from hosts previously
blacklisted by a drop, logdrop, reject, or logreject command.clearClear will remove all rules and chains installed by
Shorewall-lite. 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.If is given, the command will be processed
by the compiled script that executed the last successful start, restart or refresh command if that script exists.close {
open-number |
sourcedest [
protocol [ port
] ] }Added in Shorewall 4.5.8. This command closes a temporary open
created by the open command. In the first form,
an open-number specifies the open to be
closed. Open numbers are displayed in the num column of the output of the
shorewall-lite show opens command.When the second form of the command is used, the parameters
must match those given in the earlier open
command.deleteThe delete command reverses the effect of an earlier add command.The interface argument names an interface
defined in the shorewall-interfaces(5)
file. A host-list is comma-separated list whose
elements are a host or network address.disableAdded in Shorewall 4.4.26. Disables the optional provider
associated with the specified interface
or provider. Where more than one provider
share a single network interface, a
provider name must be given.dropCauses traffic from the listed addresses
to be silently dropped.dumpProduces a verbose report about the firewall configuration for
the purpose of problem analysis.The -x option causes actual
packet and byte counts to be displayed. Without that option, these
counts are abbreviated. The -m
option causes any MAC addresses included in Shorewall-lite log
messages to be displayed.The -l option causes the rule
number for each Netfilter rule to be displayed.The option causes the route cache to be
dumped in addition to the other routing information.enableAdded in Shorewall 4.4.26. Enables the optional provider
associated with the specified interface
or provider. Where more than one provider
share a single network interface, a
provider name must be given.forgetDeletes /var/lib/shorewall-lite/filename
and /var/lib/shorewall-lite/save. If no
filename is given then the file specified by
RESTOREFILE in shorewall.conf(5) is
assumed.helpDisplays a syntax summary.hitsGenerates several reports from Shorewall-lite log messages in
the current log file. If the option is included,
the reports are restricted to log messages generated today.ipcalcIpcalc displays the network address, broadcast address,
network in CIDR notation and netmask corresponding to the
input[s].iprangeIprange decomposes the specified range of IP addresses into
the equivalent list of network/host addresses.iptraceThis is a low-level debugging command that causes iptables
TRACE log records to be created. See iptables(8) for details.The iptables match expression must
be one or more matches that may appear in both the raw table OUTPUT
and raw table PREROUTING chains.The trace records are written to the kernel's log buffer with
facility = kernel and priority = warning, and they are routed from
there by your logging daemon (syslogd, rsyslog, syslog-ng, ...) --
Shorewall-lite has no control over where the messages go; consult
your logging daemon's documentation.logdropCauses traffic from the listed addresses
to be logged then discarded. Logging occurs at the log level
specified by the BLACKLIST_LOGLEVEL setting in shorewall.conf (5).logwatchMonitors the log file specified by the LOGFILE option in
shorewall.conf(5) and
produces an audible alarm when new Shorewall-lite messages are
logged. The -m option causes the
MAC address of each packet source to be displayed if that
information is available. The
refresh-interval specifies the time in
seconds between screen refreshes. You can enter a negative number by
preceding the number with "--" (e.g., shorewall-lite
logwatch -- -30). In this case, when a packet count
changes, you will be prompted to hit any key to resume screen
refreshes.logrejectCauses traffic from the listed addresses
to be logged then rejected. Logging occurs at the log level
specified by the BLACKLIST_LOGLEVEL setting in shorewall.conf (5).noiptraceThis is a low-level debugging command that cancels a trace
started by a preceding iptrace command.The iptables match expression must
be one given in the iptrace command being
canceled.opensourcedest [
protocol [ port
] ]Added in Shorewall 4.6.8. This command requires that the
firewall be in the started state and that DYNAMIC_BLACKLIST=Yes in
shorewall.conf
(5). The effect of the command is to temporarily open the
firewall for connections matching the parameters.The source and
dest parameters may each be specified as
all if you don't wish to restrict
the connection source or destination respectively. Otherwise, each
must contain a host or network address or a valid DNS name.The protocol may be specified
either as a number or as a name listed in /etc/protocols. The
port may be specified numerically or as a
name listed in /etc/services.To reverse the effect of a successful open
command, use the close command with the same
parameters or simply restart the firewall.Example: To open the firewall for SSH connections to address
192.168.1.1, the command would be: shorewall-lite open all 192.168.1.1 tcp 22To reverse that command, use: shorewall-lite close all 192.168.1.1 tcp 22resetAll the packet and byte counters in the firewall are
reset.restartRestart is similar to shorewall-lite
start except that it assumes that the firewall is already
started. Existing connections are maintained.The option causes Shorewall-lite to avoid
updating the routing table(s).The option causes the connection tracking
table to be flushed; the conntrack utility must
be installed to use this option.The option was added in Shorewall 4.6.5.
If the specified (or implicit) firewall script is the one that
generated the current running configuration, then the running
netfilter configuration will be reloaded as is so as to preserve the
iptables packet and byte counters.restoreRestore Shorewall-lite to a state saved using the shorewall-lite save command. Existing
connections are maintained. The filename names
a restore file in /var/lib/shorewall-lite created using shorewall-lite save; if no
filename is given then Shorewall-lite will be
restored from the file specified by the RESTOREFILE option in shorewall.conf(5).If your iptables ruleset depends on variables that are
detected at run-time, either in your params file or by
Shorewall-generated code, restore will use the
values that were current when the ruleset was saved, which may be
different from the current values.The option was added in Shorewall 4.6.5.
If the option was specified during shorewall save, then the counters saved by
that operation will be restored.runAdded in Shorewall 4.6.3. Executes
command in the context of the generated
script passing the supplied parameters.
Normally, the command will be a function
declared in lib.private.Before executing the command, the
script will detect the configuration, setting all SW_* variables and
will run your init extension script with
$COMMAND = 'run'.saveThe dynamic blacklist is stored in
/var/lib/shorewall-lite/save. The state of the firewall is stored in
/var/lib/shorewall-lite/filename for use by the
shorewall-lite restore. If
filename is not given then the state is saved
in the file specified by the RESTOREFILE option in shorewall.conf(5).The option, added in Shorewall 4.6.5,
causes the iptables packet and byte counters to be saved along with
the chains and rules.savesetsAdded in shorewall 4.6.8. Performs the same action as the
stop command with respect to saving ipsets (see
the SAVE_IPSETS option in shorewall.conf (5)).
This command may be used to proactively save your ipset contents in
the event that a system failure occurs prior to issuing a
stop command.showThe show command can have a number of different
arguments:bl|blacklistsAdded in Shorewall 4.6.2. Displays the dynamic chain
along with any chains produced by entries in
shorewall-blrules(5).The -x
option is passed directly through to iptables and causes
actual packet and byte counts to be displayed. Without this
option, those counts are abbreviated.capabilitiesDisplays your kernel/iptables capabilities. The
-f option causes the display
to be formatted as a capabilities file for use with compile -e.[ [ ] chain...
]The rules in each chain are
displayed using the iptables
-Lchain-n -v command. If no
chain is given, all of the chains in the
filter table are displayed. The -x option is passed directly through to
iptables and causes actual packet and byte counts to be
displayed. Without this option, those counts are abbreviated.
The -t option specifies the
Netfilter table to display. The default is filter.The -b ('brief') option
causes rules which have not been used (i.e. which have zero
packet and byte counts) to be omitted from the output. Chains
with no rules displayed are also omitted from the
output.The -l option causes
the rule number for each Netfilter rule to be
displayed.If the t option and the
keyword are both omitted and any of the
listed chains do not exist, a usage
message is displayed.classifiers|filtersDisplays information about the packet classifiers
defined on the system as a result of traffic shaping
configuration.configDisplays distribution-specific defaults.connectionsDisplays the IP connections currently being tracked by
the firewall.event
eventAdded in Shorewall 4.5.19. Displays the named
event.eventsAdded in Shorewall 4.5.19. Displays all events.ipDisplays the system's IPv4 configuration.ipaAdded in Shorewall 4.4.17. Displays the per-IP
accounting counters (shorewall-accounting
(5)).logDisplays the last 20 Shorewall-lite messages from the
log file specified by the LOGFILE option in shorewall.conf(5). The
-m option causes the MAC
address of each packet source to be displayed if that
information is available.marksAdded in Shorewall 4.4.26. Displays the various fields
in packet marks giving the min and max value (in both decimal
and hex) and the applicable mask (in hex).natDisplays the Netfilter nat table using the command
iptables -t nat -L -n -v.The
-x option is passed directly
through to iptables and causes actual packet and byte counts
to be displayed. Without this option, those counts are
abbreviated.opensAdded in Shorewall 4.5.8. Displays the iptables rules in
the 'dynamic' chain created through use of the open
command..policiesAdded in Shorewall 4.4.4. Displays the applicable policy
between each pair of zones. Note that implicit intrazone
ACCEPT policies are not displayed for zones associated with a
single network where that network doesn't specify
.routingDisplays the system's IPv4 routing configuration. The -c
option causes the route cache to be displayed in addition to
the other routing information.rawDisplays the Netfilter raw table using the command
iptables -t raw -L -n -v.The
-x option is passed directly
through to iptables and causes actual packet and byte counts
to be displayed. Without this option, those counts are
abbreviated.tcDisplays information about queuing disciplines, classes
and filters.zonesDisplays the current composition of the Shorewall zones
on the system.startStart Shorewall Lite. Existing connections through
shorewall-lite managed interfaces are untouched. New connections
will be allowed only if they are allowed by the firewall rules or
policies.The option causes the connection tracking
table to be flushed; the conntrack utility must
be installed to use this option.The option prevents the firewall script
from modifying the current routing configuration.The option was added in Shorewall 4.6.5.
If the RESTOREFILE named in shorewall.conf(5) exists, is
executable and is not older than the current filewall script, then
that saved configuration is restored.The option was added in Shorewall 4.6.5
and is only meaningful when the option is also
specified. If the previously-saved configuration is restored, and if
the option was also specified in the save command, then the packet and byte
counters will be restored.stopStops the firewall. All existing connections, except those
listed in shorewall-routestopped(5)
or permitted by the ADMINISABSENTMINDED option in shorewall.conf(5), are taken down.
The only new traffic permitted through the firewall is from systems
listed in shorewall-routestopped(5)
or by ADMINISABSENTMINDED.If is given, the command will be processed
by the compiled script that executed the last successful start, restart or refresh command if that script exists.statusProduces a short report about the state of the
Shorewall-configured firewall.The option was added in Shorewall 4.6.2
and causes the status of each optional or provider interface to be
displayed.versionDisplays Shorewall's version. The option
is included for compatibility with earlier Shorewall releases and is
ignored.EXIT STATUSIn general, when a command succeeds, status 0 is returned; when the
command fails, a non-zero status is returned.The status command returns exit status as
follows:0 - Firewall is started.3 - Firewall is stopped or cleared4 - Unknown state; usually means that the firewall has never been
started.FILES/etc/shorewall-lite/See ALSOhttp://www.shorewall.net/starting_and_stopping_shorewall.htmshorewall-accounting(5), shorewall-actions(5),
shorewall-blacklist(5), shorewall-hosts(5), shorewall_interfaces(5),
shorewall-ipsets(5), shorewall-maclist(5), shorewall-masq(5),
shorewall-nat(5), shorewall-netmap(5), shorewall-params(5),
shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5),
shorewall-rtrules(5), shorewall-routestopped(5), shorewall-rules(5),
shorewall.conf(5), shorewall-secmarks(5), shorewall-tcclasses(5),
shorewall-tcdevices(5), shorewall-tcrules(5), shorewall-tos(5),
shorewall-tunnels(5), shorewall-zones(5)