Provided by: shorewall6_5.0.4-1_all bug

NAME

       shorewall6 - Administration tool for Shoreline Firewall 6 (Shorewall6)

SYNOPSIS

       shorewall6 [trace|debug [nolock]] [-options] add { interface[:host-list]...
                  zone | zone host-list }

       shorewall6 [trace|debug [nolock]] [-options] allow address

       shorewall6 [trace|debug [nolock]] [-options] call function [parameter ...]

       shorewall6 [trace|debug] [-options] [check | ck ] [-e] [-d] [-p] [-r] [-T] [-i]
                  [directory]

       shorewall6 [trace|debug [nolock]] [-options] clear

       shorewall6 [trace|debug [nolock]] [-options]
                  close { open-number | sourcedest [protocol [ port ]]}

       shorewall6 [trace|debug] [-options] [compile | co ] [-e] [-d] [-T] [-i] [directory]
                  [pathname]

       shorewall6 [trace|debug [nolock]] [-options] delete { interface[:host-list]...
                  zone | zone host-list }

       shorewall6 [trace|debug [nolock]] [-options] disable { interface | provider }

       shorewall6 [trace|debug [nolock]] [-options] drop address

       shorewall6 [trace|debug] [-options] dump [-x] [-l] [-m] [-c]

       shorewall6 [trace|debug [nolock]] [-options] enable { interface | provider }

       shorewall6 [trace|debug [nolock]] [-options] export [directory1]
                  [user@]system[:directory2]

       shorewall6 [trace|debug [nolock]] [-options] forget [filename]

       shorewall6 [trace|debug] [-options] help

       shorewall6 [trace|debug] [-options] iptrace iptables match expression

       shorewall6 [trace|debug [nolock]] [-options] logdrop address

       shorewall6 [trace|debug] [-options] logwatch [-m] [refresh-interval]

       shorewall6 [trace|debug [nolock]] [-options] logreject address

       shorewall6 [trace|debug] [-options] noiptrace iptables match expression

       shorewall6 [trace|debug [nolock]] [-options] open source dest [ protocol [ port ] ]

       shorewall6 [trace|debug [nolock]] [-options] reenable { interface | provider }

       shorewall6 [trace|debug [nolock]] [-options]
                  refresh [-n] [-d] [-T] [-i] [-D directory ] [chain...]

       shorewall6 [trace|debug [nolock]] [-options] reject address

       shorewall6 [trace|debug] [-options] remote-start [-s] [-c] [-r root-user-name] [-T] [-i]
                  [directory] system

       shorewall6 [trace|debug] [-options] remote-reload [-s] [-c] [-r root-user-name] [-T] [-i]
                  [directory] system

       shorewall6 [trace|debug] [-options] remote-restart [-s] [-c] [-r root-user-name] [-T] [-i]
                  [directory] system

       shorewall6 [trace|debug [nolock]] [-options] reset [chain ...]

       shorewall6 [trace|debug [nolock]] [-options] reload [-n] [-f] [-c] [-T] [-i [-C]]
                  [directory]

       shorewall6 [trace|debug [nolock]] [-options] restart [-n] [-f] [-c] [-T] [-i [-C]]
                  [directory]

       shorewall6 [trace|debug [nolock]] [-options] restore [-C]  [filename]

       shorewall6 [trace|debug [nolock]] [-options] run command [parameter ...]

       shorewall6 [trace|debug [nolock]] [-options] safe-reload [-d] [-t timeout] [directory]

       shorewall6 [trace|debug [nolock]] [-options] safe-restart [-d] [-t timeout] [directory]

       shorewall6 [trace|debug] [-options] safe-start [-d] [-t timeout] [directory]

       shorewall6 [trace|debug [nolock]] [-options] save [-C]  [filename]

       shorewall6 [trace|debug [nolock]] [-options] savesets

       shorewall6 [trace|debug] [-options] {show | list | ls } [-x] {bl|blacklists}

       shorewall6 [trace|debug] [-options] {show | list | ls } [-b] [-x] [-l]
                  [-t {filter|mangle|raw}] [[chain] chain...]

       shorewall6 [trace|debug] [-options] {show | list | ls } [-f] capabilities

       shorewall6 [trace|debug] [-options] {show | list | ls }
                  {actions|classifiers|connections|config|events|filters|ip|macros|zones|policies|tc|marks}

       shorewall6 [trace|debug] [-options] {show | list | ls } event event

       shorewall6 [trace|debug] [-options] {show | list | ls } [-c] routing

       shorewall6 [trace|debug] [-options] {show | list | ls } [-x] {mangle|nat|raw|rawpost}

       shorewall6 [trace|debug] [-options] {show | list | ls } tc

       shorewall6 [trace|debug] [-options] {show | list | ls } [-m] log

       shorewall6 [trace|debug [nolock]] [-options] start [-n] [-f] [-c] [-T] [-i [-C]]
                  [directory]

       shorewall6 [trace|debug [nolock]] [-options] stop

       shorewall6 [trace|debug] [-options] status [-i]

       shorewall6 [trace|debug [nolock]] [-options] try directory [timeout]

       shorewall6 [trace|debug] [-options] update [-d] [-r] [-T] [-a] [-i] [-A] [directory]

       shorewall6 [trace|debug] [-options] version [-a]

DESCRIPTION

       The shorewall6 utility is used to control the Shoreline Firewall 6 (Shorewall6).

OPTIONS

       The trace and debug options are used for debugging. See
       http://www.shorewall.net/starting_and_stopping_shorewall.htm#Trace[1].

       The nolock option prevents the command from attempting to acquire the Shorewall6 lockfile.
       It is useful if you need to include shorewall6 commands in /etc/shorewall6/started.

       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 shorewall6.conf[2](5). Each v adds
       one to the effective verbosity and each q subtracts one from the effective VERBOSITY.
       Alternatively, v may be followed immediately with one of -1,0,1,2 to specify a specify
       VERBOSITY. There may be no white-space between v and the VERBOSITY.

       The options may also include the letter t which causes all progress messages to be
       timestamped.

COMMANDS

       The available commands are listed below.

       add { interface[:host-list]... zone | zone host-list }
           Added in Shorewall 4.4.21. Adds a list of hosts or subnets to a dynamic zone usually
           used with VPN's.

           The interface argument names an interface defined in the shorewall6-interfaces[3](5)
           file. A host-list is comma-separated list whose elements are host or network
           addresses..if n .sp
               Caution
               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 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.

           Beginning with Shorewall 4.5.9, the dynamic_shared zone option
           (shorewall6-zones[4](5)) allows a single ipset to handle entries for multiple
           interfaces. When that option is specified for a zone, the add command has the
           alternative syntax in which the zone name precedes the host-list.

       allow address
           Re-enables receipt of packets from hosts previously blacklisted by a drop, logdrop,
           reject, or logreject command.

       call function [ parameter ... ]
           Added in Shorewall 4.6.10. Allows you to call a function in one of the Shorewall
           libraries or in your compiled script. function must name the shell function to be
           called. The listed parameters are passed to the function.

           The function is first searched for in lib.base, lib.common, lib.cli and lib.cli-std.
           If it is not found, the call command is passed to the generated script to be executed.

       check [-e] [-d] [-p] [-r] [-T] [-i] [directory]
           Compiles the configuration in the specified directory and discards the compiled output
           script. If no directory is given, then /etc/shorewall6 is assumed.

           The -e option causes the compiler to look for a file named capabilities. This file is
           produced using the command shorewall6-lite show -f capabilities > capabilities on a
           system with Shorewall6 Lite installed.

           The -d option causes the compiler to be run under control of the Perl debugger.

           The -p option causes the compiler to be profiled via the Perl -wd:DProf command-line
           option.

           The -r option was added in Shorewall 4.5.2 and causes the compiler to print the
           generated ruleset to standard out.

           The -T option was added in Shorewall 4.4.20 and causes a Perl stack trace to be
           included with each compiler-generated error and warning message.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall6.conf(5)[2].

       clear [-f]
           Clear will remove all rules and chains installed by Shorewall6. 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.

       close { open-number | source dest [ 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 shorewall6 show opens
           command.

           When the second form of the command is used, the parameters must match those given in
           the earlier open command.

       compile [-e] [-c] [-d] [-p] [-T] [-i] [directory] [pathname ]
           Compiles the current configuration into the executable file pathname. If a directory
           is supplied, Shorewall6 will look in that directory first for configuration files. If
           the pathname is omitted, the file firewall in the VARDIR (normally
           /var/lib/shorewall/) is assumed. A pathname of '-' causes the compiler to send the
           generated script to it's standard output file. Note that '-v-1' is usually specified
           in this case (e.g., shorewall6 -v-1 compile -- -) to suppress the 'Compiling...'
           message normally generated by /sbin/shorewall6.

           When -e is specified, the compilation is being performed on a system other than where
           the compiled script will run. This option disables certain configuration options that
           require the script to be compiled where it is to be run. The use of -e requires the
           presence of a configuration file named capabilities which may be produced using the
           command shorewall6-lite show -f capabilities > capabilities on a system with
           Shorewall6 Lite installed.

           The -c option was added in Shorewall 4.5.17 and causes conditional compilation of a
           script. The script specified by pathname (or implied if pathname is omitted) is
           compiled if it doesn't exist or if there is any file in the directory or in a
           directory on the CONFIG_PATH that has a modification time later than the file to be
           compiled. When no compilation is needed, a message is issued and an exit status of
           zero is returned.

           The -d option causes the compiler to be run under control of the Perl debugger.

           The -p option causes the compiler to be profiled via the Perl -wd:DProf command-line
           option.

           The -T option was added in Shorewall 4.4.20 and causes a Perl stack trace to be
           included with each compiler-generated error and warning message.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall6.conf(5)[2].

       delete { interface[:host-list]... zone | zone host-list }
           Added in Shorewall 4.4.21. The delete command reverses the effect of an earlier add
           command.

           The interface argument names an interface defined in the shorewall6-interfaces[3](5)
           file. A host-list is comma-separated list whose elements are a host or network
           address.

           Beginning with Shorewall 4.5.9, the dynamic_shared zone option
           (shorewall6-zones[4](5)) allows a single ipset to handle entries for multiple
           interfaces. When that option is specified for a zone, the delete command has the
           alternative syntax in which the zone name precedes the host-list.

       disable  { interface | provider }
           Added 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.

           Beginning with Shorewall 4.5.10, this command may be used with any optional network
           interface.  interface may be either the logical or physical name of the interface. The
           command removes any routes added from shorewall6-routes[5](5) and any traffic shaping
           configuration for the interface.

       drop address
           Causes traffic from the listed addresses to be silently dropped.

       dump [-x] [-l] [-m] [-c]
           Produces 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 Shorewall6 log messages to be
           displayed.

           The -l option causes the rule number for each Netfilter rule to be displayed.

           The -c option causes the route cache to be dumped in addition to the other routing
           information.

       enable { interface | provider }
           Added 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.

           Beginning with Shorewall 4.5.10, this command may be used with any optional network
           interface.  interface may be either the logical or physical name of the interface. The
           command sets /proc entries for the interface, adds any route specified in
           shorewall6-routes[5](5) and installs the interface's traffic shaping configuration, if
           any.

       export [directory1 ] [user@]system[:directory2 ]
           If directory1 is omitted, the current working directory is assumed.

           Allows a non-root user to compile a shorewall6 script and stage it on a system
           (provided that the user has access to the system via ssh). The command is equivalent
           to:

                   /sbin/shorewall6 compile -e directory1 directory1/firewall &&\
                   scp directory1/firewall directory1/firewall.conf [user@]system:[directory2]

           In other words, the configuration in the specified (or defaulted) directory is
           compiled to a file called firewall in that directory. If compilation succeeds, then
           firewall and firewall.conf are copied to system using scp.

       forget [ filename ]
           Deletes /var/lib/shorewall6/filename and /var/lib/shorewall6/save. If no filename is
           given then the file specified by RESTOREFILE in shorewall6.conf[2](5) is assumed.

       help
           Displays a syntax summary.

       iptrace ip6tables match expression
           This is a low-level debugging command that causes iptables TRACE log records to be
           created. See ip6tables(8) for details.

           The ip6tables match expression must be one or more matches that may appear in both the
           raw table OUTPUT and raw table PREROUTING chains.

           The log message destination is determined by the currently-selected IPv6 logging
           backend[6].

       list
           list is a synonym for show -- please see below.

       logdrop address
           Causes traffic from the listed addresses to be logged then discarded. Logging occurs
           at the log level specified by the BLACKLIST_LOGLEVEL setting in shorewall6.conf[2]
           (5).

       logwatch [-m] [refresh-interval]
           Monitors the log file specified by the LOGFILE option in shorewall6.conf[2](5) and
           produces an audible alarm when new Shorewall6 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.,
           shorewall6 logwatch -- -30). In this case, when a packet count changes, you will be
           prompted to hit any key to resume screen refreshes.

       logreject address
           Causes traffic from the listed addresses to be logged then rejected. Logging occurs at
           the log level specified by the BLACKLIST_LOGLEVEL setting in shorewall6.conf[2] (5).

       ls
           ls is a synonym for show -- please see below.

       noiptrace ip6tables match expression
           This 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.

       open source dest [ 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 shorewall6.conf (5)[2]. 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 2001:470:b:227::1, the
           command would be:

                   shorewall6 open all 2001:470:b:227::1 tcp 22

           To reverse that command, use:

                   shorewall6 close all 2001:470:b:227::1 tcp 22

       reenable{ interface | provider }
           Added in Shorewall 4.6.9. This is equivalent to a disable command followed by an
           enable command on the specified interface or provider.

       refresh [-n] [-d] [-T] [-i] [-Ddirectory ] [ chain... ]
           All steps performed by restart are performed by refresh with the exception that
           refresh only recreates the chains specified in the command while restart recreates the
           entire Netfilter ruleset.When no chain name is given to the refresh command, the
           mangle table is refreshed along with the blacklist chain (if any). This allows you to
           modify /etc/shorewall6/tcrulesand install the changes using refresh.

           The listed chains are assumed to be in the filter table. You can refresh chains in
           other tables by prefixing the chain name with the table name followed by ":" (e.g.,
           nat:net_dnat). Chain names which follow are assumed to be in that table until the end
           of the list or until an entry in the list names another table. Built-in chains such as
           FORWARD may not be refreshed.

           The -n option was added in Shorewall 4.5.3 causes Shorewall to avoid updating the
           routing table(s).

           The -d option was added in Shorewall 4.5.3 causes the compiler to run under the Perl
           debugger.

           The -T option was added in Shorewall 4.5.3 and causes a Perl stack trace to be
           included with each compiler-generated error and warning message.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall6.conf[2](5).

           The -D option was added in Shorewall 4.5.3 and causes Shorewall to look in the given
           directory first for configuration files.

           Example 1. Refresh the 'net-fw' chain in the filter table and the 'net_dnat' chain in
           the nat table

               shorewall6 refresh net-fw nat:net_dnat

       reject address
           Causes traffic from the listed addresses to be silently rejected.

       reload [-n] [-p] [-d] [-f] [-c] [-T] [-i] [-C] [ directory ]
           This command was re-implemented in Shorewall 5.0.0. The pre-5.0.0 reload command is
           now called remote-restart (see below).

           Reload is similar to shorewall6 start except that it assumes that the firewall is
           already started. Existing connections are maintained. If a directory is included in
           the command, Shorewall6 will look in that directory first for configuration files.

           The -n option causes Shorewall6 to avoid updating the routing table(s).

           The -p option causes the connection tracking table to be flushed; the conntrack
           utility must be installed to use this option.

           The -d option causes the compiler to run under the Perl debugger.

           The -f option suppresses the compilation step and simply reused the compiled script
           which last started/restarted Shorewall, provided that /etc/shorewall6 and its contents
           have not been modified since the last start/restart.

           The -c option was added in Shorewall 4.4.20 and performs the compilation step
           unconditionally, overriding the AUTOMAKE setting in shorewall6.conf[2](5). When both
           -f and -c are present, the result is determined by the option that appears last.

           The -T option was added in Shorewall 4.5.3 and causes a Perl stack trace to be
           included with each compiler-generated error and warning message.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall6.conf[2](5).

           The -C option was added in Shorewall 4.6.5 and is only meaningful when AUTOMAKE=Yes in
           shorewall6.conf[2](5). If an existing firewall script is used and if that script was
           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.

       remote-reload [-s] [-c] [-r root-user-name] [-T] [-i] [ directory ] system
           This command was added in Shorewall 5.0.0.

           If directory is omitted, the current working directory is assumed. Allows a non-root
           user to compile a shorewall6 script and install it on a system (provided that the user
           has root access to the system via ssh). The command is equivalent to:

                   /sbin/shorewall6 compile -e directory directory/firewall &&\
                   scp directory/firewall directory/firewall.conf root@system:/var/lib/shorewall6-lite/ &&\
                   ssh root@system '/sbin/shorewall6-lite reload'

           In other words, the configuration in the specified (or defaulted) directory is
           compiled to a file called firewall in that directory. If compilation succeeds, then
           firewall is copied to system using scp. If the copy succeeds, Shorewall6 Lite on
           system is restarted via ssh.

           If -s is specified and the restart command succeeds, then the remote Shorewall6-lite
           configuration is saved by executing shorewall6-lite save via ssh.

           if -c is included, the command shorewall6-lite show capabilities -f >
           /var/lib/shorewall6-lite/capabilities is executed via ssh then the generated file is
           copied to directory using scp. This step is performed before the configuration is
           compiled.

           If -r is included, it specifies that the root user on system is named root-user-name
           rather than "root".

           The -T option was added in Shorewall 4.5.3 and causes a Perl stack trace to be
           included with each compiler-generated error and warning message.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall6.conf[2](5).

       remote- restart [-s] [-c] [-r root-user-name] [-T] [-i] [ directory ] system
           This command was renamed from reload in Shorewall 5.0.0.

           If directory is omitted, the current working directory is assumed. Allows a non-root
           user to compile a shorewall6 script and install it on a system (provided that the user
           has root access to the system via ssh). The command is equivalent to:

                   /sbin/shorewall6 compile -e directory directory/firewall &&\
                   scp directory/firewall directory/firewall.conf root@system:/var/lib/shorewall6-lite/ &&\
                   ssh root@system '/sbin/shorewall6-lite restart'

           In other words, the configuration in the specified (or defaulted) directory is
           compiled to a file called firewall in that directory. If compilation succeeds, then
           firewall is copied to system using scp. If the copy succeeds, Shorewall6 Lite on
           system is restarted via ssh.

           If -s is specified and the restart command succeeds, then the remote Shorewall6-lite
           configuration is saved by executing shorewall6-lite save via ssh.

           if -c is included, the command shorewall6-lite show capabilities -f >
           /var/lib/shorewall6-lite/capabilities is executed via ssh then the generated file is
           copied to directory using scp. This step is performed before the configuration is
           compiled.

           If -r is included, it specifies that the root user on system is named root-user-name
           rather than "root".

           The -T option was added in Shorewall 4.5.3 and causes a Perl stack trace to be
           included with each compiler-generated error and warning message.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall6.conf[2](5).

       remote-start  [-s] [-c] [-r root-user-name] [-T] [-i] [ directory ] system
           This command was added in Shorewall 5.0.0.

           If directory is omitted, the current working directory is assumed. Allows a non-root
           user to compile a shorewall6 script and install it on a system (provided that the user
           has root access to the system via ssh). The command is equivalent to:

                   /sbin/shorewall6 compile -e directory directory/firewall &&\
                   scp directory/firewall directory/firewall.conf root@system:/var/lib/shorewall6-lite/ &&\
                   ssh root@system '/sbin/shorewall6-lite start'

           In other words, the configuration in the specified (or defaulted) directory is
           compiled to a file called firewall in that directory. If compilation succeeds, then
           firewall is copied to system using scp. If the copy succeeds, Shorewall6 Lite on
           system is started via ssh.

           If -s is specified and the start command succeeds, then the remote Shorewall6-lite
           configuration is saved by executing shorewall6-lite save via ssh.

           if -c is included, the command shorewall6-lite show capabilities -f >
           /var/lib/shorewall6-lite/capabilities is executed via ssh then the generated file is
           copied to directory using scp. This step is performed before the configuration is
           compiled.

           If -r is included, it specifies that the root user on system is named root-user-name
           rather than "root".

           The -T option was added in Shorewall 4.5.3 and causes a Perl stack trace to be
           included with each compiler-generated error and warning message.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall6.conf[2](5).

       reset [chain, ...]
           Resets the packet and byte counters in the specified chain(s). If no chain is
           specified, all the packet and byte counters in the firewall are reset.

           Beginning with Shorewall 5.0.0, chain may be composed of both a table name and a chain
           name separated by a colon (e.g., mangle:PREROUTING). Chain names following that don't
           include a table name are assumed to be in that same table. If no table name is given
           in the command, the filter table is assumed.

       restart [-n] [-p] [-d] [-f] [-c] [-T] [-i] [-C] [ directory ]
           Beginning with Shorewall 5.0.0, this command performs a true restart. The firewall is
           completely stopped as if a stop command had been issued then it is started again.

           If a directory is included in the command, Shorewall6 will look in that directory
           first for configuration files.

           The -n option causes Shorewall6 to avoid updating the routing table(s).

           The -p option causes the connection tracking table to be flushed; the conntrack
           utility must be installed to use this option.

           The -d option causes the compiler to run under the Perl debugger.

           The -f option suppresses the compilation step and simply reused the compiled script
           which last started/restarted Shorewall, provided that /etc/shorewall6 and its contents
           have not been modified since the last start/restart.

           The -c option was added in Shorewall 4.4.20 and performs the compilation step
           unconditionally, overriding the AUTOMAKE setting in shorewall6.conf[2](5). When both
           -f and -c are present, the result is determined by the option that appears last.

           The -T option was added in Shorewall 4.5.3 and causes a Perl stack trace to be
           included with each compiler-generated error and warning message.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall6.conf[2](5).

           The -C option was added in Shorewall 4.6.5 and is only meaningful when AUTOMAKE=Yes in
           shorewall6.conf[2](5). If an existing firewall script is used and if that script was
           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.

       restore [-n] [-p] [-C] [ filename ]
           Restore Shorewall6 to a state saved using the shorewall6 save command. Existing
           connections are maintained. The filename names a restore file in /var/lib/shorewall6
           created using shorewall6 save; if no filename is given then Shorewall6 will be
           restored from the file specified by the RESTOREFILE option in shorewall6.conf[2](5).

               Caution
               If your ip6tables 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 -C option was added in Shorewall 4.6.5. If the -C option was specified during
           shorewall6 save, then the counters saved by that operation will be restored.

       run command [ parameter ... ]
           Added 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'.

           If there are files in the CONFIG_PATH that were modified after the current firewall
           script was generated, the following warning message is issued before the script's run
           command is executed:

               WARNING: /var/lib/shorewall6/firewall is not up to
                         date

       safe-restart [-d] [-p] [-ttimeout ] [ directory ]
           Only allowed if Shorewall6 is running. The current configuration is saved in
           /var/lib/shorewall6/safe-restart (see the save command below) then a shorewall6
           restart is done. You will then be prompted asking if you want to accept the new
           configuration or not. If you answer "n" or if you fail to answer within 60 seconds
           (such as when your new configuration has disabled communication with your terminal),
           the configuration is restored from the saved configuration. If a directory is given,
           then Shorewall6 will look in that directory first when opening configuration files.

           Beginning with Shorewall 4.5.0, you may specify a different timeout value using the -t
           option. The numeric timeout may optionally be followed by an s, m or h suffix (e.g.,
           5m) to specify seconds, minutes or hours respectively. If the suffix is omitted,
           seconds is assumed.

       safe-start [-d] [-p] [-ttimeout ] [ directory ]
           Shorewall6 is started normally. You will then be prompted asking if everything went
           all right. If you answer "n" or if you fail to answer within 60 seconds (such as when
           your new configuration has disabled communication with your terminal), a shorewall6
           clear is performed for you. If a directory is given, then Shorewall6 will look in that
           directory first when opening configuration files.

           Beginning with Shorewall 4.5.0, you may specify a different timeout value using the -t
           option. The numeric timeout may optionally be followed by an s, m or h suffix (e.g.,
           5m) to specify seconds, minutes or hours respectively. If the suffix is omitted,
           seconds is assumed.

       save [-C] [ filename ]
           The dynamic blacklist is stored in /var/lib/shorewall6/save. The state of the firewall
           is stored in /var/lib/shorewall6/filename for use by the shorewall6 restore and
            shorewall6 -f start commands. If filename is not given then the state is saved in the
           file specified by the RESTOREFILE option in shorewall6.conf[2](5).

           The -C option, added in Shorewall 4.6.5, causes the ip6tables packet and byte counters
           to be saved along with the chains and rules.

       savesets
           Added in shorewall 4.6.8. Performs the same action as the stop command with respect to
           saving ipsets (see the SAVE_IPSETS option in shorewall6.conf[2] (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.

       show
           The show command can have a number of different arguments:

           actions
               Produces a report about the available actions (built-in, standard and
               user-defined).

           [-x] bl|blacklists
               Added 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 ip6tables and causes actual packet and byte counts to be displayed.
               Without this option, those counts are abbreviated.

           [-f] capabilities
               Displays your kernel/ip6tables capabilities. The -f option causes the display to
               be formatted as a capabilities file for use with shorewall6 compile -e.

           [-b] [-x] [-l] [-t {filter|mangle|nat|raw|rawpost}][ chain... ]
               The rules in each chain are displayed using the ip6tables -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 ip6tables 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 chain keyword are both omitted and any of the listed
               chains do not exist, a usage message is displayed.

           classifiers|filters
               Displays information about the packet classifiers defined on the system as a
               result of traffic shaping configuration.

           config
               Displays distribution-specific defaults.

           connections [filter_parameter ...]
               Displays the IP connections currently being tracked by the firewall.

               If the conntrack utility is installed, beginning with Shorewall 4.6.11 the set of
               connections displayed can be limited by including conntrack filter parameters (-p
               , -s, --dport, etc). See conntrack(8) for details.

           event event
               Added in Shorewall 4.5.19. Displays the named event.

           events
               Added in Shorewall 4.5.19. Displays all events.

           ip
               Displays the system's IPv6 configuration.

           [-m] log
               Displays the last 20 Shorewall6 messages from the log file specified by the
               LOGFILE option in shorewall6.conf[2](5). The -m option causes the MAC address of
               each packet source to be displayed if that information is available.

           macros
               Displays information about each macro defined on the firewall system.

           macro macro
               Added in Shorewall 4.4.6. Displays the file that implements the specified macro
               (usually /usr/share/shorewall6/macro.macro).

           [-x] mangle
               Displays the Netfilter mangle table using the command ip6tables -t mangle -L -n
               -v.The -x option is passed directly through to ip6tables and causes actual packet
               and byte counts to be displayed. Without this option, those counts are
               abbreviated.

           marks
               Added 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).

           [-x] nat
               Displays the Netfilter nat table using the command ip6tables -t nat -L -n -v. The
               -x option is passed directly through to ip6tables and causes actual packet and
               byte counts to be displayed. Without this option, those counts are abbreviated.

           opens
               Added in Shorewall 4.5.8. Displays the iptables rules in the 'dynamic' chain
               created through use of the open command..

           policies
               Added 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 routeback.

           [-x] raw
               Displays the Netfilter raw table using the command ip6tables -t raw -L -n -v. The
               -x option is passed directly through to ip6tables and causes actual packet and
               byte counts to be displayed. Without this option, those counts are abbreviated.

           [-c] routing
               Displays the system's IPv6 routing configuration. The -c option causes the route
               cache to be displayed in addition to the other routing information.

           tc
               Displays information about queuing disciplines, classes and filters.

           zones
               Displays the current composition of the Shorewall6 zones on the system.

       start  [-n] [-p] [-d] [-f] [-c] [-T] [-i] [-C] [ directory ]
           Start shorewall6. Existing connections through shorewall6 managed interfaces are
           untouched. New connections will be allowed only if they are allowed by the firewall
           rules or policies. If a directory is included in the command, Shorewall6 will look in
           that directory first for configuration files. If -f is specified, the saved
           configuration specified by the RESTOREFILE option in shorewall6.conf[2](5) will be
           restored if that saved configuration exists and has been modified more recently than
           the files in /etc/shorewall6. When -f is given, a directory may not be specified.

           Update: In Shorewall6 4.4.20, a new LEGACY_FASTSTART option was added to
           shorewall6.conf[2](5). When LEGACY_FASTSTART=No, the modification times of files in
           /etc/shorewall6 are compared with that of /var/lib/shorewall6/firewall (the compiled
           script that last started/restarted the firewall).

           The -n option causes Shorewall6 to avoid updating the routing table(s).

           The -c option was added in Shorewall 4.4.20 and performs the compilation step
           unconditionally, overriding the AUTOMAKE setting in shorewall6.conf[2](5). When both
           -f and -c are present, the result is determined by the option that appears last.

           The -T option was added in Shorewall 4.5.3 and causes a Perl stack trace to be
           included with each compiler-generated error and warning message.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall6.conf[2](5).

           The -C option was added in Shorewall 4.6.5 and is only meaningful when the -f option
           is also specified. If the previously-saved configuration is restored, and if the -C
           option was also specified in the save command, then the packet and byte counters will
           be restored along with the chains and rules.

       stop [-f]
           Stops the firewall. All existing connections, except those listed in
           shorewall6-routestopped[7](5) or permitted by the ADMINISABSENTMINDED option in
           shorewall6.conf[2](5), are taken down. The only new traffic permitted through the
           firewall is from systems listed in shorewall6-routestopped[7](5) or by
           ADMINISABSENTMINDED.

           If -f 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.

       status
           Produces a short report about the state of the Shorewall6-configured firewall.

           The -i option was added in Shorewall 4.6.2 and causes the status of each optional or
           provider interface to be displayed.

       try directory [ timeout ]
           If Shorewall6 is started then the firewall state is saved to a temporary saved
           configuration (/var/lib/shorewall6/.try). Next, if Shorewall6 is currently started
           then a restart command is issued using the specified configuration directory;
           otherwise, a start command is performed using the specified configuration directory.
           If an error occurs during the compilation phase of the restart or start , the command
           terminates without changing the Shorewall6 state. If an error occurs during the
           restart phase, then a shorewall6 restore is performed using the saved configuration.
           If an error occurs during the start phase, then Shorewall6 is cleared. If the start/
           restart succeeds and a timeout is specified then a clear or restore is performed after
           timeout seconds.

           Beginning with Shorewall 4.5.0, the numeric timeout may optionally be followed by an
           s, m or h suffix (e.g., 5m) to specify seconds, minutes or hours respectively. If the
           suffix is omitted, seconds is assumed.

       update [-d] [-r] [-T] [-a] [-i] [-A] [ directory ]
           Added in Shorewall 4.4.21 and causes the compiler to update
           /etc/shorewall/shorewall.conf then validate the configuration. The update will add
           options not present in the old file with their default values, and will move
           deprecated options with non-defaults to a deprecated options section at the bottom of
           the file. Your existing shorewall.conf file is renamed shorewall.conf.bak.

           The command was extended over the years with a set of options that caused additional
           configuration updates.

           •   Convert an existing blacklist file into an equivalent blrules file.

           •   Convert an existing routestopped file into an equivalent stoppedrules file.

           •   Convert existing tcrules and tos files into an equivalent mangle file.

           •   Convert an existing notrack file into an equivalent conntrack file.

           •   Convert FORMAT, SECTION and COMMENT entries into ?FORMAT, ?SECTION and ?COMMENT
               directives.

           In each case, the old file is renamed with a .bak suffix.

           In Shorewall 5.0.0, the options were eliminated and the update command performs all of
           the updates described above.

               Important
               There are some notable restrictions with the update command:

                1. Converted rules will be appended to the existing file; if there is no existing
                   file in the CONFIG_PATH, one will be created in the directory specified in the
                   command or in the first entry in the CONFIG_PATH (normally /etc/shorewall6)
                   otherwise.

                2. Existing comments in the file being converted will not be transferred to the
                   output file.

                3. INCLUDEd files will be expanded inline in the output file.

                4. Columns in the output file will be separated by a single tab character; there
                   is no attempt made to otherwise align the columns.
           The -a option causes the updated shorewall.conf file to be annotated with
           documentation.

           The -i option was added in Shorewall 4.6.0 and causes a warning message to be issued
           if the current line contains alternative input specifications following a semicolon
           (";"). Such lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
           shorewall.conf[8](5).

           The -A option is included for compatibility with Shorewall 4.6 and is equivalent to
           specifying the -i option.

           For a description of the other options, see the check command above.

       version [-a]
           Displays Shorewall6's version. If the -a option is included, the version of Shorewall
           will also be displayed.

EXIT STATUS

       In 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 cleared

       4 - Unknown state; usually means that the firewall has never been started.

SEE ALSO

       http://www.shorewall.net/starting_and_stopping_shorewall.htm[9]

       shorewall6-accounting(5), shorewall6-actions(5), shorewall6-blacklist(5),
       shorewall6-hosts(5), shorewall6-interfaces(5), shorewall6-maclist(5),
       shorewall6-netmap(5),shorewall6-params(5), shorewall6-policy(5), shorewall6-providers(5),
       shorewall6-rtrules(5), shorewall6-routestopped(5), shorewall6-rules(5),
       shorewall6.conf(5), shorewall6-secmarks(5), shorewall6-tcclasses(5),
       shorewall6-tcdevices(5), shorewall6-tcrules(5), shorewall6-tos(5), shorewall6-tunnels(5),
       shorewall6-zones(5)

NOTES

        1. http://www.shorewall.net/starting_and_stopping_shorewall.htm#Trace
           http://www.shorewall.net/starting_and_stopping_shorewall.htm#Trace

        2. shorewall6.conf
           http://www.shorewall.net/manpages6/shorewall6.conf.html

        3. shorewall6-interfaces
           http://www.shorewall.net/manpages6/shorewall6-interfaces.html

        4. shorewall6-zones
           http://www.shorewall.net/manpages6/shorewall6-zones.html

        5. shorewall6-routes
           http://www.shorewall.net/manpages6/shorewall6-routes.html

        6. logging backend
           http://www.shorewall.net/shorewall_logging.html#Backends

        7. shorewall6-routestopped
           http://www.shorewall.net/manpages6/shorewall6-routestopped.html

        8. shorewall.conf
           http://www.shorewall.net/manpages/shorewall.conf.html

        9. http://www.shorewall.net/starting_and_stopping_shorewall.htm
           http://www.shorewall.net/starting_and_stopping_shorewall.htm