<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> <refentry> <refmeta> <refentrytitle>shorewall6</refentrytitle> <manvolnum>8</manvolnum> </refmeta> <refnamediv> <refname>shorewall6</refname> <refpurpose>Administration tool for Shoreline Firewall 6 (Shorewall6)</refpurpose> </refnamediv> <refsynopsisdiv> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>allow</option></arg> <arg choice="plain"><replaceable>address</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>check</option></arg> <arg><option>-e</option></arg> <arg><option>-d</option></arg> <arg><option>-p</option></arg> <arg><option>-r</option></arg> <arg><replaceable>directory</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>clear</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>compile</option></arg> <arg><option>-e</option></arg> <arg><option>-d</option></arg> <arg><replaceable>directory</replaceable></arg> <arg choice="opt"><replaceable>pathname</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>drop</option></arg> <arg choice="plain"><replaceable>address</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>dump</option></arg> <arg><option>-x</option></arg> <arg><option>-l</option></arg> <arg><option>-m</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>export</option></arg> <arg choice="opt"><replaceable>directory1</replaceable></arg> <arg choice="plain">[<replaceable>user</replaceable>@]<replaceable>system</replaceable>[<option>:</option><replaceable>directory2</replaceable>]</arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>forget</option></arg> <arg><replaceable>filename</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>help</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>iptrace</option></arg> <arg choice="plain"><replaceable>iptables match expression</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>load</option></arg> <arg><option>-s</option></arg> <arg><option>-c</option></arg> <arg><option>-r</option> <replaceable>root-user-name</replaceable></arg> <arg><replaceable>directory</replaceable></arg> <arg choice="plain"><replaceable>system</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>logdrop</option></arg> <arg choice="plain"><replaceable>address</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>logwatch</option></arg> <arg><option>-m</option></arg> <arg><replaceable>refresh-interval</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>logreject</option></arg> <arg choice="plain"><replaceable>address</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>noiptrace</option></arg> <arg choice="plain"><replaceable>iptables match expression</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>refresh</option><arg rep="repeat"><replaceable>chain</replaceable></arg></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>reject</option></arg> <arg choice="plain"><replaceable>address</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>reload</option></arg> <arg><option>-s</option></arg> <arg><option>-c</option></arg> <arg><option>-r</option> <replaceable>root-user-name</replaceable></arg> <arg><replaceable>directory</replaceable></arg> <arg choice="plain"><replaceable>system</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>reset</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>restart</option></arg> <arg><option>-n</option></arg> <arg><option>-f</option></arg> <arg><replaceable>directory</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>restore</option></arg> <arg><replaceable>filename</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>safe-restart</option></arg> <arg><option>-d</option></arg> <arg><replaceable>directory</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>safe-start</option></arg> <arg><option>-d</option></arg> <arg><replaceable>directory</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>save</option></arg> <arg choice="opt"><replaceable>filename</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>show</option></arg> <arg><option>-x</option></arg> <arg><option>-l</option></arg> <arg><option>-t</option> {<option>filter</option>|<option>mangle</option>|<option>raw</option>}</arg> <arg><arg><option>chain</option></arg><arg choice="plain" rep="repeat"><replaceable>chain</replaceable></arg></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>show</option></arg> <arg><option>-f</option></arg> <arg choice="plain"><option>capabilities</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>show</option></arg> <arg choice="req"><option>actions|classifiers|connections|config|filters|macros|zones</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>show</option></arg> <arg choice="plain"><option>policies</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>show</option></arg> <arg choice="plain"><option>tc</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>show</option></arg> <arg><option>-m</option></arg> <arg choice="plain"><option>log</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>start</option></arg> <arg><option>-n</option></arg> <arg><option>-f</option></arg> <arg><replaceable>directory</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>stop</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>status</option></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>try</option></arg> <arg choice="plain"><replaceable>directory</replaceable></arg> <arg><replaceable>timeout</replaceable></arg> </cmdsynopsis> <cmdsynopsis> <command>shorewall6</command> <arg choice="opt"><option>trace</option>|<option>debug</option></arg> <arg>-<replaceable>options</replaceable></arg> <arg choice="plain"><option>version</option><arg><option>-a</option></arg></arg> </cmdsynopsis> </refsynopsisdiv> <refsect1> <title>Description</title> <para>The shorewall6 utility is used to control the Shoreline Firewall 6 (Shorewall6).</para> </refsect1> <refsect1> <title>Options</title> <para>The <option>trace</option> and <option>debug</option> options are used for debugging. See <ulink url="http://www.shorewall.net/starting_and_stopping.htm#Trace">http://www.shorewall.net/starting_and_stopping.htm#Trace</ulink>.</para> <para>The nolock <option>option</option> prevents the command from attempting to acquire the Shorewall6 lockfile. It is useful if you need to include <command>shorewall6</command> commands in <filename>/etc/shorewall6/started</filename>.</para> <para>The <emphasis>options</emphasis> control the amount of output that the command produces. They consist of a sequence of the letters <emphasis role="bold">v</emphasis> and <emphasis role="bold">q</emphasis>. If the options are omitted, the amount of output is determined by the setting of the VERBOSITY parameter in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink>(5). Each <emphasis role="bold">v</emphasis> adds one to the effective verbosity and each <emphasis role="bold">q</emphasis> subtracts one from the effective VERBOSITY. Anternately, <emphasis role="bold">v</emphasis> may be followed immediately with one of -1,0,1,2 to specify a specify VERBOSITY. There may be no white space between <emphasis role="bold">v</emphasis> and the VERBOSITY.</para> <para>The <emphasis>options</emphasis> may also include the letter <option>t</option> which causes all progress messages to be timestamped.</para> </refsect1> <refsect1> <title>Commands</title> <para>The available commands are listed below.</para> <variablelist> <varlistentry> <term><emphasis role="bold">allow</emphasis></term> <listitem> <para>Re-enables receipt of packets from hosts previously blacklisted by a <emphasis role="bold">drop</emphasis>, <emphasis role="bold">logdrop</emphasis>, <emphasis role="bold">reject</emphasis>, or <emphasis role="bold">logreject</emphasis> command.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">check</emphasis></term> <listitem> <para>Compiles the configuraton in the specified <emphasis>directory</emphasis> and discards the compiled output script. If no <emphasis>directory</emphasis> is given, then /etc/shorewall6 is assumed.</para> <para>The <emphasis role="bold">-e</emphasis> option causes the compiler to look for a file named capabilities. This file is produced using the command <emphasis role="bold">shorewall6-lite show -f capabilities > capabilities</emphasis> on a system with Shorewall6 Lite installed.</para> <para>The <option>-d</option> option causes the compiler to be run under control of the Perl debugger.</para> <para>The <option>-p</option> option causes the compiler to be profiled via the Perl <option>-wd:DProf</option> command-line option.</para> <para>The <option>-r</option> option was added in Shorewall 4.5.2 and causes the compiler to print the generated ruleset to standard out.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">clear</emphasis></term> <listitem> <para>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.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">compile</emphasis></term> <listitem> <para>Compiles the current configuration into the executable file <emphasis>pathname</emphasis>. If a directory is supplied, Shorewall6 will look in that directory first for configuration files. If the <emphasis>pathname</emphasis> is omitted, the file firewall in the VARDIR (normally <filename class="directory">/var/lib/shorewall/</filename>) is assumed. A <emphasis>pathname</emphasis> 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., <command>shorewall6 -v-1 compile -- -</command>) to suppress the 'Compiling...' message normally generated by <filename>/sbin/shorewall6</filename>.</para> <para>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 presense of a configuration file named <filename>capabilities</filename> which may be produced using the command <emphasis role="bold">shorewall6-lite show -f capabilities > capabilities</emphasis> on a system with Shorewall6 Lite installed</para> <para>The <option>-d</option> option causes the compiler to be run under control of the Perl debugger.</para> <para>The <option>-p</option> option causes the compiler to be profiled via the Perl <option>-wd:DProf</option> command-line option.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">drop</emphasis></term> <listitem> <para>Causes traffic from the listed <emphasis>address</emphasis>es to be silently dropped.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">dump</emphasis></term> <listitem> <para>Produces a verbose report about the firewall configuration for the purpose of problem analysis.</para> <para>The <emphasis role="bold">-x</emphasis> option causes actual packet and byte counts to be displayed. Without that option, these counts are abbreviated. The <emphasis role="bold">-m</emphasis> option causes any MAC addresses included in Shorewall6 log messages to be displayed.</para> <para>The <emphasis role="bold">-l</emphasis> option causes the rule number for each Netfilter rule to be displayed.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">export</emphasis></term> <listitem> <para>If <emphasis>directory1</emphasis> is omitted, the current working directory is assumed.</para> <para>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:</para> <programlisting> <emphasis role="bold">/sbin/shorewall6 compile -e</emphasis> <emphasis>directory1</emphasis> <emphasis>directory1</emphasis><emphasis role="bold">/firewall &&\</emphasis> <emphasis role="bold">scp</emphasis> directory1<emphasis role="bold">/firewall</emphasis> <emphasis>directory1</emphasis><emphasis role="bold">/firewall.conf</emphasis> [<emphasis>user</emphasis>@]<emphasis role="bold">system</emphasis>:[<emphasis>directory2</emphasis>]</programlisting> <para>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 <emphasis>system</emphasis> using scp.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">forget</emphasis></term> <listitem> <para>Deletes /var/lib/shorewall6/<emphasis>filenam</emphasis>e and /var/lib/shorewall6/save. If no <emphasis>filename</emphasis> is given then the file specified by RESTOREFILE in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink>(5) is assumed.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">help</emphasis></term> <listitem> <para>Displays a syntax summary.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">iptrace</emphasis></term> <listitem> <para>This is a low-level debugging command that causes iptables TRACE log records to be created. See ip6tables(8) for details.</para> <para>The <replaceable>ip6tables match expression</replaceable> must be one or more matches that may appear in both the raw table OUTPUT and raw table PREROUTING chains.</para> <para>The trace records are written to the kernel's log buffer with faciility = kernel and priority = warning, and they are routed from there by your logging daemon (syslogd, rsyslog, syslog-ng, ...) -- Shorewall has no control over where the messages go; consult your logging daemon's documentation.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">load</emphasis></term> <listitem> <para>If <emphasis>directory</emphasis> 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:</para> <programlisting> <emphasis role="bold">/sbin/shorewall6 compile -e</emphasis> <emphasis><replaceable>directory</replaceable></emphasis> <replaceable>directory</replaceable><emphasis role="bold">/firewall &&\</emphasis> <emphasis role="bold">scp</emphasis> <emphasis>directory</emphasis><emphasis role="bold">/firewall</emphasis> <emphasis>directory</emphasis><emphasis role="bold">/firewall.conf</emphasis> <emphasis role="bold">root@</emphasis><replaceable>system</replaceable><emphasis role="bold">:/var/lib/shorewall6-lite/ &&\</emphasis> <emphasis role="bold">ssh root@</emphasis><replaceable>system</replaceable> <emphasis role="bold">'/sbin/shorewall6-lite start'</emphasis></programlisting> <para>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 <replaceable>system</replaceable> using scp. If the copy succeeds, Shorewall6 Lite on <replaceable>system</replaceable> is started via ssh.</para> <para>If <emphasis role="bold">-s</emphasis> is specified and the <emphasis role="bold">start</emphasis> command succeeds, then the remote Shorewall6-lite configuration is saved by executing <emphasis role="bold">shorewall6-lite save</emphasis> via ssh.</para> <para>if <emphasis role="bold">-c</emphasis> is included, the command <emphasis role="bold">shorewall6-lite show capabilities -f > /var/lib/shorewall6-lite/capabilities</emphasis> is executed via ssh then the generated file is copied to <replaceable>directory</replaceable> using scp. This step is performed before the configuration is compiled.</para> <para>If <option>-r</option> is included, it specifies that the root user on <replaceable>system</replaceable> is named <replaceable>root-user-name</replaceable> rather than "root".</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">logdrop</emphasis></term> <listitem> <para>Causes traffic from the listed <emphasis>address</emphasis>es to be logged then discarded. Logging occurs at the log level specified by the BLACKLIST_LOGLEVEL setting in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink> (5).</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">logwatch</emphasis></term> <listitem> <para>Monitors the log file specified by the LOGFILE option in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink>(5) and produces an audible alarm when new Shorewall6 messages are logged. The <emphasis role="bold">-m</emphasis> option causes the MAC address of each packet source to be displayed if that information is available. The <replaceable>refresh-interval</replaceable> specifies the time in seconds between screen refreshes. You can enter a negative number by preceding the number with "--" (e.g., <command>shorewall6 logwatch -- -30</command>). In this case, when a packet count changes, you will be prompted to hit any key to resume screen refreshes.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">logreject</emphasis></term> <listitem> <para>Causes traffic from the listed <emphasis>address</emphasis>es to be logged then rejected. Logging occurs at the log level specified by the BLACKLIST_LOGLEVEL setting in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink> (5).</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">noiptrace</emphasis></term> <listitem> <para>This is a low-level debugging command that cancels a trace started by a preceding <command>iptrace</command> command.</para> <para>The <replaceable>iptables match expression</replaceable> must be one given in the <command>iptrace</command> command being cancelled.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">refresh</emphasis></term> <listitem> <para>All steps performed by <command>restart</command> are performed by <command>refresh</command> with the exception that <command>refresh</command> only recreates the chains specified in the command while <command>restart</command> recreates the entire Netfilter ruleset.When no chain name is given to the <emphasis role="bold">refresh</emphasis> command, the mangle table is refreshed along with the blacklist chain (if any). This allows you to modify <filename>/etc/shorewall6/tcrules</filename>and install the changes using <emphasis role="bold">refresh</emphasis>.</para> <para>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.</para> <para>Example:<programlisting><command>shorewall6 refresh net2fw nat:net_dnat</command> #Refresh the 'net2loc' chain in the filter table and the 'net_dnat' chain in the nat table</programlisting></para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">reload</emphasis></term> <listitem> <para>If <emphasis>directory</emphasis> 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:</para> <programlisting> <emphasis role="bold">/sbin/shorewall6 compile -e</emphasis> <emphasis>directory</emphasis> <emphasis>directory</emphasis><emphasis role="bold">/firewall &&\</emphasis> <emphasis role="bold">scp</emphasis> <emphasis>directory</emphasis><emphasis role="bold">/firewall</emphasis> <emphasis>directory</emphasis><emphasis role="bold">/firewall.conf</emphasis> <emphasis role="bold">root@</emphasis><emphasis>system</emphasis><emphasis role="bold">:/var/lib/shorewall6-lite/ &&\</emphasis> <emphasis role="bold">ssh root@</emphasis><emphasis>system</emphasis> <emphasis role="bold">'/sbin/shorewall6-lite restart'</emphasis></programlisting> <para>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 <emphasis>system</emphasis> using scp. If the copy succeeds, Shorewall6 Lite on <emphasis>system</emphasis> is restarted via ssh.</para> <para>If <emphasis role="bold">-s</emphasis> is specified and the <emphasis role="bold">restart</emphasis> command succeeds, then the remote Shorewall6-lite configuration is saved by executing <emphasis role="bold">shorewall6-lite save</emphasis> via ssh.</para> <para>if <emphasis role="bold">-c</emphasis> is included, the command <emphasis role="bold">shorewall6-lite show capabilities -f > /var/lib/shorewall6-lite/capabilities</emphasis> is executed via ssh then the generated file is copied to <emphasis>directory</emphasis> using scp. This step is performed before the configuration is compiled.</para> <para>If <option>-r</option> is included, it specifies that the root user on <replaceable>system</replaceable> is named <replaceable>root-user-name</replaceable> rather than "root".</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">reset [<replaceable>chain</replaceable>, ...]</emphasis><acronym></acronym></term> <listitem> <para>Resets the packet and byte counters in the specified <replaceable>chain</replaceable>(s). If no <replaceable>chain</replaceable> is specified, all the packet and byte counters in the firewall are reset.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">restart</emphasis></term> <listitem> <para>Restart is similar to <emphasis role="bold">shorewall6 start</emphasis> except that it assumes that the firewall is already started. Existing connections are maintained. If a <emphasis>directory</emphasis> is included in the command, Shorewall6 will look in that <emphasis>directory</emphasis> first for configuration files.</para> <para>The <option>-n</option> option causes Shorewall6 to avoid updating the routing table(s).</para> <para>The <option>-f</option> option suppresses the compilation step and simply reused the compiled script which last started/restarted Shorewall6.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">restore</emphasis></term> <listitem> <para>Restore Shorewall6 to a state saved using the <emphasis role="bold">shorewall6 save</emphasis> command. Existing connections are maintained. The <emphasis>filename</emphasis> names a restore file in /var/lib/shorewall6 created using <emphasis role="bold">shorewall6 save</emphasis>; if no <emphasis>filename</emphasis> is given then Shorewall6 will be restored from the file specified by the RESTOREFILE option in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink>(5).</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">safe-restart</emphasis></term> <listitem> <para>Only allowed if Shorewall6 is running. The current configuration is saved in /var/lib/shorewall6/safe-restart (see the save command below) then a <emphasis role="bold">shorewall6 restart</emphasis> 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.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">safe-start</emphasis></term> <listitem> <para>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.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">save</emphasis></term> <listitem> <para>The dynamic blacklist is stored in /var/lib/shorewall6/save. The state of the firewall is stored in /var/lib/shorewall6/<emphasis>filename</emphasis> for use by the <emphasis role="bold">shorewall6 restore</emphasis> and <emphasis role="bold">shorewall6 -f start</emphasis> commands. If <emphasis>filename</emphasis> is not given then the state is saved in the file specified by the RESTOREFILE option in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink>(5).</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">show</emphasis></term> <listitem> <para>The show command can have a number of different arguments:</para> <variablelist> <varlistentry> <term><emphasis role="bold">actions</emphasis></term> <listitem> <para>Produces a report about the available actions (built-in, standard and user-defined).</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">capabilities</emphasis></term> <listitem> <para>Displays your kernel/ip6tables capabilities. The <emphasis role="bold">-f</emphasis> option causes the display to be formatted as a capabilities file for use with <emphasis role="bold">compile -e</emphasis>.</para> </listitem> </varlistentry> <varlistentry> <term>[ [ <option>chain</option> ] <emphasis>chain</emphasis>... ]</term> <listitem> <para>The rules in each <emphasis>chain</emphasis> are displayed using the <emphasis role="bold">ip6tables -L</emphasis> <emphasis>chain</emphasis> <emphasis role="bold">-n -v</emphasis> command. If no <emphasis>chain</emphasis> is given, all of the chains in the filter table are displayed. The <emphasis role="bold">-x</emphasis> 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 <emphasis role="bold">-t</emphasis> option specifies the Netfilter table to display. The default is <emphasis role="bold">filter</emphasis>.</para> <para>The <emphasis role="bold">-l</emphasis> option causes the rule number for each Netfilter rule to be displayed.</para> <para>If the <emphasis role="bold">-t</emphasis> option and the <option>chain</option> keyword are both omitted and any of the listed <replaceable>chain</replaceable>s do not exist, a usage message is displayed.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">classifiers|filters</emphasis></term> <listitem> <para>Displays information about the packet classifiers defined on the system as a result of traffic shaping configuration.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">config</emphasis></term> <listitem> <para>Dispays distribution-specific defaults.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">connections</emphasis></term> <listitem> <para>Displays the IP connections currently being tracked by the firewall.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">log</emphasis></term> <listitem> <para>Displays the last 20 Shorewall6 messages from the log file specified by the LOGFILE option in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink>(5). The <emphasis role="bold">-m</emphasis> option causes the MAC address of each packet source to be displayed if that information is available.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">macros</emphasis></term> <listitem> <para>Displays information about each macro defined on the firewall system.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">mangle</emphasis></term> <listitem> <para>Displays the Netfilter mangle table using the command <emphasis role="bold">ip6tables -t mangle -L -n -v</emphasis>.The <emphasis role="bold">-x</emphasis> option is passed directly through to ip6tables and causes actual packet and byte counts to be displayed. Without this option, those counts are abbreviated.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">policies</emphasis></term> <listitem> <para>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 <option>routeback</option>.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">tc</emphasis></term> <listitem> <para>Displays information about queuing disciplines, classes and filters.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">zones</emphasis></term> <listitem> <para>Displays the current composition of the Shorewall6 zones on the system.</para> </listitem> </varlistentry> </variablelist> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">start</emphasis></term> <listitem> <para>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 <replaceable>directory</replaceable> is included in the command, Shorewall6 will look in that <emphasis>directory</emphasis> first for configuration files. If <emphasis role="bold">-f</emphasis> is specified, the saved configuration specified by the RESTOREFILE option in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink>(5) will be restored if that saved configuration exists and has been modified more recently than the files in /etc/shorewall6. When <emphasis role="bold">-f</emphasis> is given, a <replaceable>directory</replaceable> may not be specified.</para> <para>The <option>-n</option> option causes Shorewall6 to avoid updating the routing table(s).</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">stop</emphasis></term> <listitem> <para>Stops the firewall. All existing connections, except those listed in <ulink url="shorewall6-routestopped.html">shorewall6-routestopped</ulink>(5) or permitted by the ADMINISABSENTMINDED option in <ulink url="shorewall6.conf.html">shorewall6.conf</ulink>(5), are taken down. The only new traffic permitted through the firewall is from systems listed in <ulink url="shorewall6-routestopped.html">shorewall6-routestopped</ulink>(5) or by ADMINISABSENTMINDED.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">status</emphasis></term> <listitem> <para>Produces a short report about the state of the Shorewall6-configured firewall.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">try</emphasis></term> <listitem> <para>If Shorewall6 is started then the firewall state is saved to a temporary saved configuration (<filename>/var/lib/shorewall6/.try</filename>). Next, if Shorewall6 is currently started then a <emphasis role="bold">restart</emphasis> command is issued; otherwise, a <emphasis role="bold">start</emphasis> command is performed. if an error occurs during the compliation phase of the <emphasis role="bold">restart</emphasis> or <emphasis role="bold">start</emphasis>, the command terminates without changing the Shorewall6 state. If an error occurs during the <emphasis role="bold">restart</emphasis> phase, then a <emphasis role="bold">shorewall6 restore</emphasis> is performed using the saved configuration. If an error occurs during the <emphasis role="bold">start</emphasis> phase, then Shorewall6 is cleared. If the <emphasis role="bold">start</emphasis>/<emphasis role="bold">restart</emphasis> succeeds and a <replaceable>timeout</replaceable> is specified then a <emphasis role="bold">clear</emphasis> or <emphasis role="bold">restore</emphasis> is performed after <replaceable>timeout</replaceable> seconds.</para> </listitem> </varlistentry> <varlistentry> <term><emphasis role="bold">version</emphasis></term> <listitem> <para>Displays Shorewall6's version. If the <option>-a</option> option is included, the version of Shorewall will also be displayed.</para> </listitem> </varlistentry> </variablelist> </refsect1> <refsect1> <title>FILES</title> <para>/etc/shorewall6/</para> </refsect1> <refsect1> <title>See ALSO</title> <para><ulink url="http://www.shorewall.net/starting_and_stopping_shorewall.htm">http://www.shorewall.net/starting_and_stopping_shorewall.htm</ulink></para> <para>shorewall6-accounting(5), shorewall6-actions(5), shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-interfaces(5), shorewall6-maclist(5), shorewall6-params(5), shorewall6-policy(5), shorewall6-providers(5), shorewall6-route_rules(5), shorewall6-routestopped(5), shorewall6-rules(5), shorewall6.conf(5), shorewall6-tcclasses(5), shorewall6-tcdevices(5), shorewall6-tcrules(5), shorewall6-tos(5), shorewall6-tunnels(5), shorewall6-zones(5)</para> </refsect1> </refentry>