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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
<article id="Install">
<!--$Id$-->
<articleinfo>
<title>Shorewall Installation and Upgrade</title>
<authorgroup>
<author>
<firstname>Tom</firstname>
<surname>Eastep</surname>
</author>
</authorgroup>
<pubdate><?dbtimestamp format="Y/m/d"?></pubdate>
<copyright>
<year>2001-</year>
<year>2006</year>
<year>2009</year>
<year>2012</year>
<holder>Thomas M. Eastep</holder>
</copyright>
<legalnotice>
<para>Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version
1.2 or any later version published by the Free Software Foundation; with
no Invariant Sections, with no Front-Cover, and with no Back-Cover
Texts. A copy of the license is included in the section entitled
<quote><ulink url="GnuCopyright.htm">GNU Free Documentation
License</ulink></quote>.</para>
</legalnotice>
</articleinfo>
<caution>
<para><emphasis role="bold">This article applies to Shorewall 4.3 and
later. If you are installing or upgrading to a version of Shorewall
earlier than Shorewall 4.3.5 then please see the documentation for that
release.</emphasis></para>
</caution>
<important>
<para>Before attempting installation, I strongly urge you to read and
print a copy of the <ulink url="shorewall_quickstart_guide.htm">Shorewall
QuickStart</ulink> Guide for the configuration that most closely matches
your own. This article only tells you how to install the product on your
system. The QuickStart Guides describe how to configure the
product.</para>
</important>
<important>
<para>Before upgrading, be sure to review the <ulink
url="upgrade_issues.htm">Upgrade Issues</ulink>.</para>
</important>
<note>
<para>Shorewall RPMs are signed. To avoid warnings such as the
following<programlisting>warning: shorewall-3.2.1-1.noarch.rpm: V3 DSA signature: NOKEY, key ID 6c562ac4</programlisting></para>
<para>download the <ulink
url="https://lists.shorewall.net/shorewall.gpg.key">Shorewall GPG
key</ulink> and run this command:</para>
<programlisting><command>rpm --import shorewall.gpg.key</command></programlisting>
</note>
<section id="Install_RPM">
<title>Install using RPM</title>
<para>To install Shorewall using the RPM:</para>
<orderedlist>
<listitem>
<para><emphasis role="bold">Be sure that you have the correct RPM
package!</emphasis></para>
<para>The standard RPM package from shorewall.net and the mirrors is
known to work with <emphasis
role="bold"><trademark>SUSE</trademark></emphasis>, <emphasis
role="bold"><trademark>Power PPC</trademark></emphasis>, <emphasis
role="bold"><trademark>Trustix</trademark></emphasis> and <emphasis
role="bold"><trademark>TurboLinux</trademark></emphasis>. There is
also an RPM package provided by Simon Matter that is tailored for
<trademark><emphasis role="bold">RedHat/Fedora</emphasis></trademark>
and another package from Jack Coates that is customized for <emphasis
role="bold"><trademark>Mandriva</trademark></emphasis>. All of these
are available from the <ulink
url="http://www.shorewall.net/download.htm">download
page</ulink>.</para>
<para>If you try to install the wrong package, it probably won't
work.</para>
</listitem>
<listitem>
<para>Install the RPMs</para>
<programlisting><command>rpm -ivh <shorewall rpm></command></programlisting>
<caution>
<para>Some users are in the habit of using the <command>rpm
-U</command> command for installing packages as well as for updating
them. If you use that command when installing the Shorewall RPM then
you will have to manually enable Shorewall startup at boot time by
running <command>chkconfig</command>, <command>insserv</command> or
whatever utility you use to manipulate you init symbolic
links.</para>
</caution>
<note>
<para>Shorewall is dependent on the iproute package. Unfortunately,
some distributions call this package iproute2 which will cause the
installation of Shorewall to fail with the diagnostic:</para>
<programlisting>error: failed dependencies:iproute is needed by shorewall-3.2.x-1</programlisting>
<para>This problem should not occur if you are using the correct RPM
package (see 1., above) but may be worked around by using the
--nodeps option of rpm.</para>
<programlisting><command>rpm -ivh --nodeps <rpms></command></programlisting>
</note>
<para>Example:<programlisting><command>rpm -ivh shorewall-4.3.5-0base.noarch.rpm</command></programlisting></para>
</listitem>
</orderedlist>
</section>
<section id="Install_Tarball">
<title>Install using tarball</title>
<section>
<title>Versions 4.5.2 and Later</title>
<para>Shorewall 4.5.2 introduced a change in the philosopy used by the
Shorewall installers. 4.5.2 introduced the concept of
<firstterm>shorewallrc files</firstterm>. These files define the
parameters to the install process. During the first installation using
<emphasis role="bold">Shorewall-core</emphasis> 4.5.2 or later, a
shorewallrc file named ${HOME}/.shorewallrc will be installed. That file
will provide the default parameters for installing other Shorewall
components of the same or later version.</para>
<para>Note that <emphasis role="bold">you must install Shorewall-core
before installing any other Shorewall package</emphasis>.</para>
<para>Each of the Shorewall packages contains a set of
distribution-specific shorewallrc files:</para>
<itemizedlist>
<listitem>
<para>shorewallrc.apple (OS X)</para>
</listitem>
<listitem>
<para>shorewallrc.archlinux</para>
</listitem>
<listitem>
<para>shorewallrc.cygwin (Cygwin running on Windows)</para>
</listitem>
<listitem>
<para>shorewallrc.debian (Debian and derivatives)</para>
</listitem>
<listitem>
<para>shoreallrc.default (Generic Linux)</para>
</listitem>
<listitem>
<para>shorewallrc.redhat (Fedora, RHEL and derivatives)</para>
</listitem>
<listitem>
<para>shorewallrc.slackware</para>
</listitem>
<listitem>
<para>shorewallrc.suse (SLES and OpenSuSE)</para>
</listitem>
<listitem>
<para>shorewallrc.openwrt (OpenWRT)</para>
</listitem>
</itemizedlist>
<para>When installing 4.5.2 or later for the first time, a special
procedure must be followed:</para>
<orderedlist>
<listitem>
<para>Select the shorewallrc file that is closest to your
needs.</para>
</listitem>
<listitem>
<para>Review the settings in the file.</para>
</listitem>
<listitem>
<para>If you want to change something then you have two
choices:</para>
<orderedlist numeration="loweralpha">
<listitem>
<para>Copy the file to shorewallrc and edit the copy to meet
your needs; or</para>
</listitem>
<listitem>
<para>If the system has Bash (/bin/bash) 4.0 or later installed,
you can run ./configure (see below). If you are installing
4.5.2.1 or later and your system has Perl installed, you can use
the Perl version (./configure.pl).</para>
</listitem>
<listitem>
<para>./install.sh</para>
</listitem>
</orderedlist>
</listitem>
<listitem>
<para>If you don't need to change the file, then simply:</para>
<simplelist>
<member>./install.sh
<replaceable>shorewallrcfile-that-meets-your-needs</replaceable></member>
<member/>
<member>Example: <command>./install.sh
shorewallrc.debian</command></member>
</simplelist>
</listitem>
</orderedlist>
<para>The shorewall-core install.sh script will store the shorewallrc
file in ~/.shorewallrc where it will provide the defaults for future
installations of all Shorewall products. Other packages/versions can be
installed by simply typing</para>
<simplelist>
<member><command>./install.sh</command></member>
</simplelist>
<section id="shorewallrc">
<title>Settings in a shorewallrc file</title>
<para>A shorewallrc file contains a number of lines of the form
<replaceable>option</replaceable>=<replaceable>value.</replaceable>
Because some of the installers are shared between Shorewall products,
the files assume the definition of the symbol PRODUCT. $PRODUCT will
contain the name of a Shorewall product (shorewall-core, shorewall,
shorewall6, shorewall-lite, shorewall6-lite or shorewall-init).</para>
<para>Valid values for <replaceable>option</replaceable> are:</para>
<variablelist>
<varlistentry>
<term>HOST</term>
<listitem>
<para>Selects the shorewallrc file to use for default settings.
Valid values are:</para>
<variablelist>
<varlistentry>
<term>apple</term>
<listitem>
<para>OS X</para>
</listitem>
</varlistentry>
<varlistentry>
<term>archlinux</term>
<listitem>
<para>Archlinux</para>
</listitem>
</varlistentry>
<varlistentry>
<term>cygwin</term>
<listitem>
<para>Cygwin running under Windows</para>
</listitem>
</varlistentry>
<varlistentry>
<term>debian</term>
<listitem>
<para>Debian and derivatives (Ubuntu, Kbuntu, etc)</para>
</listitem>
</varlistentry>
<varlistentry>
<term>default</term>
<listitem>
<para>Generic Linux</para>
</listitem>
</varlistentry>
<varlistentry>
<term>redhat</term>
<listitem>
<para>Fedora, RHEL and derivatives (CentOS, Foobar,
etc)</para>
</listitem>
</varlistentry>
<varlistentry>
<term>slackware</term>
<listitem>
<para>Slackware Linux</para>
</listitem>
</varlistentry>
<varlistentry>
<term>suse</term>
<listitem>
<para>SLES and OpenSuSe</para>
</listitem>
</varlistentry>
<varlistentry>
<term>openwrt</term>
<listitem>
<para>OpenWRT (Shorewall 5.0.2 and later)</para>
</listitem>
</varlistentry>
</variablelist>
</listitem>
</varlistentry>
<varlistentry>
<term>PREFIX</term>
<listitem>
<para>Top-level directory under which most Shorewall components
are installed. All standard shorewallrc files define this as
<emphasis role="bold">\usr</emphasis>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>SHAREDIR</term>
<listitem>
<para>The directory where most Shorewall components are
installed. In all of the standard shorewallrc file, this option
has the value <emphasis
role="bold">${PREFIX}/share</emphasis>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>LIBEXECDIR</term>
<listitem>
<para>Directory where internal executables are stored. In the
standard shorewallrc files, the default is either <emphasis
role="bold">${PREFIX}/share</emphasis> or <emphasis
role="bold">${PREFIX}/libexec</emphasis></para>
</listitem>
</varlistentry>
<varlistentry>
<term>PERLLIBDIR</term>
<listitem>
<para>Directory where the Shorewall Perl modules are installed.
They will be installed in this directory under the sub-directory
Shorewall. Default is distribution-specific.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CONFDIR</term>
<listitem>
<para>Directory where subsystem configuration data is stored.
Default is <emphasis role="bold">/etc</emphasis> in all
shorewallrc file.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>SBINDIR</term>
<listitem>
<para>Directory where CLI programs will be installed. Default in
all shorewallrc files is /<emphasis
role="bold">sbin</emphasis>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>MANDIR</term>
<listitem>
<para>Directory under which manpages are to be installed.
Default is distribution dependent.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>INITDIR</term>
<listitem>
<para>Directory under which SysV init scripts are installed.
Default is distribution dependent.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>INITSOURCE</term>
<listitem>
<para>File in the package that is to be installed as the SysV
init script for the product.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>INITFILE</term>
<listitem>
<para>The name of the SysV init script when installed under
$INITDIR. May be empty, in which case no SysV init script will
be installed. This is usually the case on systems that run
systemd and on systems like Cygwin or OS X where Shorewall can't
act as a firewall.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>AUXINITSOURCE and AUXINITFILE</term>
<listitem>
<para>Analogs of INITSOURCE and INITFILE for distributions, like
Slackware, that have a master SysV init script and multiple
subordinate scripts.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>SYSTEMD</term>
<listitem>
<para>The directory under which the product's .service file is
to be installed. Should only be specified on systems running
systemd.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>SERVICEFILE</term>
<listitem>
<para>Added in Shorewall 4.5.20. When SYSTEMD is specified, this
variable names the file to be installed as the product's
.service file. If not specified, $PRODUCT.service is
assumed.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>SYSCONFDIR</term>
<listitem>
<para>The directory where package SysV init configuration files
are to be installed. <emphasis
role="bold">/etc/default</emphasis> on Debian and derivatives
and <emphasis role="bold">/etc/sysconfig</emphasis>
otherwise</para>
</listitem>
</varlistentry>
<varlistentry>
<term>SYSCONFFILE</term>
<listitem>
<para>The file in the Shorewall package that should be installed
as ${SYSCONFDIR}/$PRODUCT</para>
</listitem>
</varlistentry>
<varlistentry>
<term>ANNOTATED</term>
<listitem>
<para>Value is either empty or non-empty. Non-empty indicates
that files in ${CONFDIR}/${PRODUCT} should be annotated with
manpage documentation.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>SPARSE</term>
<listitem>
<para>Value is either empty or non-empty. When non-empty, only
${PRODUCT}.conf will be installed in
${CONFDIR}/${PRODUCT}</para>
</listitem>
</varlistentry>
<varlistentry>
<term>VARLIB</term>
<listitem>
<para>Added in Shorewall 4.5.8. Directory where subsystem state
data is to be stored. Default is <emphasis
role="bold">/var/lib</emphasis>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>VARDIR</term>
<listitem>
<para>Shorewall 4.5.7 and earlier: Directory where subsystem
state data is to be stored. Default is <emphasis
role="bold">/var/lib</emphasis>.</para>
<para>Shorewall 4.5.8 and later: Default is <emphasis
role="bold">/var/lib/$PRODUCT</emphasis>.</para>
</listitem>
</varlistentry>
</variablelist>
<note>
<para>From Shorewall 4.5.2 through 4.5.7, there were two
interpretations of VARDIR. In the shorewallrc file, it referred to
the directory where all Shorewall product state would be stored
(default <emphasis role="bold">/var/lib</emphasis>). But in the code
and in shorewall-vardir(5), it referred to the directory where an
individual products state would be stored (e.g., <emphasis
role="bold">/var/lib/shorewall</emphasis>).</para>
<para>In Shorewall 4.5.8, the variable VARLIB was added to
shorewallrc. In that release, the shorewallrc files packaged with
the Shorewall products were changed to include these two
lines:</para>
<simplelist>
<member>VARLIB=/var/lib</member>
</simplelist>
<para>VARDIR defaults to '${VARLIB}/${PRODUCT}' if VARLIB is
specified and VARDIR isn't.</para>
<para>The consumers of shorewallrc were changed so that if there is
no VARLIB setting, then VARLIB is set to $VARDIR and $VARDIR is set
to ${VARLIB}/${PRODUCT}. This allows existing
<filename>shorewallrc</filename> files to be used unchanged.</para>
</note>
</section>
<section>
<title>configure Script</title>
<warning>
<para>The configure script requires Bash 4.0 or later. Beginning
with Shorewall 4.5.2.1, a Perl version (configure.pl) of the script
is included for use by packagers that have to deal with systems with
earlier versions of Bash. The configure.pl script works identically
to the Bash version.</para>
</warning>
<para>The configure script creates a file named
<filename>shorewallrc</filename> in the current working directory.
This file is the default input file to the
i<command>nstall.sh</command> scripts. It is run as follows:</para>
<simplelist>
<member><command>./configure</command>[.pl] [
<replaceable>option</replaceable>=<replaceable>value</replaceable> ]
...</member>
</simplelist>
<para>The possible values for option are the same as those shown above
in the shorewallrc file. They may be specified in either upper or
lower case and may optionally be prefixed by '--'. To facilitate use
with the rpm %configure script, the following options are
supported:</para>
<variablelist>
<varlistentry>
<term>vendor</term>
<listitem>
<para>Alias for <emphasis role="bold">host</emphasis>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>sharedstatedir</term>
<listitem>
<para>Shorewall 4.5.2 - 4.5.7 Alias for <emphasis
role="bold">vardir</emphasis>.</para>
<para>Shorewall 4.5.8 and later. Alias for <emphasis
role="bold">varlib</emphasis>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>datadir</term>
<listitem>
<para>Alias for <emphasis
role="bold">sharedir</emphasis>.</para>
</listitem>
</varlistentry>
</variablelist>
<para>Note that %configure may generate option/value pairs that are
incompatible with the <command>configure</command> script. The current
%configure macro is:</para>
<programlisting>%configure \
CFLAGS="${CFLAGS:-%optflags}" ; export CFLAGS ; \
CXXFLAGS="${CXXFLAGS:-%optflags}" ; export CXXFLAGS ; \
FFLAGS="${FFLAGS:-%optflags}" ; export FFLAGS ; \
./configure --host=%{_host} --build=%{_build} \\\
--target=%{_target_platform} \\\
--program-prefix=%{?_program_prefix} \\\
--prefix=%{_prefix} \\\
--exec-prefix=%{_exec_prefix} \\\
--bindir=%{_bindir} \\\
--sbindir=%{_sbindir} \\\
--sysconfdir=%{_sysconfdir} \\\
--datadir=%{_datadir} \\\
--includedir=%{_includedir} \\\
--libdir=%{_libdir} \\\
--libexecdir=%{_libexecdir} \\\
--localstatedir=%{_localstatedir} \\\
--sharedstatedir=%{_sharedstatedir} \\\
--mandir=%{_mandir} \\\
--infodir=%{_infodir}
</programlisting>
<para>On Fedora 16, this expands to:</para>
<programlisting> CFLAGS="${CFLAGS:--O2 -g -march=i386 -mtune=i686}" ; export CFLAGS ;
CXXFLAGS="${CXXFLAGS:--O2 -g -march=i386 -mtune=i686}" ; export CXXFLAGS ;
FFLAGS="${FFLAGS:--O2 -g -march=i386 -mtune=i686}" ; export FFLAGS ;
./configure <emphasis role="bold">--host=i686-pc-linux-gnu</emphasis> --build=i686-pc-linux-gnu \
--program-prefix= \
--prefix=/usr \
--exec-prefix=/usr \
--bindir=/usr/bin \
--sbindir=/usr/sbin \
--sysconfdir=/etc \
--datadir=/usr/share \
--includedir=/usr/include \
--libdir=/usr/lib \
--libexecdir=/usr/libexec \
--localstatedir=/var \
--sharedstatedir=/var/lib \
--mandir=/usr/share/man \
--infodir=/usr/share/info
</programlisting>
<para>The value of <emphasis role="bold">--host </emphasis>does not
map to any of the valid HOST values in shorewallrc. So to use
%configure on a Fedora system, you want to invoke it as
follows:</para>
<programlisting><command>%configure --vendor=redhat</command></programlisting>
<para>To reset the value of a setting in shorewallrc.$host, give it a
null value. For example, if you are installing on a RHEL derivative
that doesn't run systemd, use this command:</para>
<programlisting><command>./configure --vendor=redhat --systemd=</command></programlisting>
</section>
<section>
<title>Install for Packaging.</title>
<para>If you build your own packages, then you will want to install
the Shorewall products into it's own directory tree. This is done by
adding DESTDIR to the installer's environment. For example, to install
a product for Debian into the /tmp/package directory:</para>
<programlisting>DESTDIR=/tmp/package ./install.sh shorewallrc.debian</programlisting>
<para>When DESTDIR is specified, the installers treat $DESTDIR as the
root of the filesystem tree. In other words, the created installation
is only runnable if one chroots to $DESTDIR. Please note that the
uninstall.sh scripts cannot uninstall a configuration installed with
non-empty DESTDIR.</para>
</section>
<section>
<title>Install into a Sandbox</title>
<para>When DESTDIR is used, the resulting configuration is not
runnable, because all configuration pathnames are relative to
$DESTDIR. Beginning with Shorewall 4.6.4, you can create runnable
configurations separate from your main configuration. Here is a sample
shorewallrc file:</para>
<programlisting> INSTALL_DIR=/usr/local/shorewall-custom
HOST=suse
PREFIX=${INSTALL_DIR}
SHAREDIR=${INSTALL_DIR}/share
LIBEXECDIR=${INSTALL_DIR}/lib
PERLLIBDIR=${INSTALL_DIR}/lib/perl5
CONFDIR=${INSTALL_DIR}/etc
SBINDIR=${INSTALL_DIR}/usr/sbin
MANDIR=${SHAREDIR}/man/
INITDIR=${INSTALL_DIR}/etc/init.d
INITSOURCE=init.suse.sh
INITFILE=${PRODUCT}
AUXINITSOURCE=
AUXINITFILE=
SYSTEMD=${INSTALL_DIR}/etc/systemd
SERVICEFILE=${PRODUCT}.service
SYSCONFFILE=sysconfig
SYSCONFDIR=${INSTALL_DIR}/etc/sysconfig
SPARSE=
ANNOTATED=
VARLIB=${INSTALL_DIR}/var/lib
VARDIR=${VARLIB}/${PRODUCT}
<emphasis role="bold">SANDBOX=Yes</emphasis></programlisting>
<para>The above shorewallrc creates a runnable configuration in
/usr/local/shorewall-custom. It is triggered by adding SANDBOX to the
shorewallrc file -- any non-empty value for that variable will prevent
the installer from replacing the current main configuraiton.</para>
</section>
</section>
<section>
<title>Versions 4.5.1 and Earlier</title>
<para>Beginning with Shorewall-4.5.0, the Shorewall packages depend on
Shorewall-core. So the first step is to install that package:</para>
<orderedlist>
<listitem>
<para>unpack the tarballs:<programlisting><command>tar -jxf shorewall-core-4.5.0.tar.bz2</command></programlisting></para>
</listitem>
<listitem>
<para>cd to the shorewall directory (the version is encoded in the
directory name as in <quote>shorewall-core-4.5.0</quote>).</para>
</listitem>
<listitem>
<para>Type:</para>
<programlisting><command>./install.sh </command></programlisting>
</listitem>
</orderedlist>
<para>To install Shorewall using the tarball and install script:</para>
<orderedlist>
<listitem>
<para>unpack the tarballs:<programlisting><command>tar -jxf shorewall-4.5.0.tar.bz2</command></programlisting></para>
</listitem>
<listitem>
<para>cd to the shorewall directory (the version is encoded in the
directory name as in <quote>shorewall-4.3.5</quote>).</para>
</listitem>
<listitem>
<para>Type:</para>
<programlisting><command>./install.sh </command></programlisting>
<para>or if you are installing Shorewall or Shorewall6 version 4.4.8
or later, you may type:</para>
<programlisting><command>./install.sh -s</command></programlisting>
<para>The <emphasis role="bold">-s</emphasis> option suppresses
installation of all files in <filename
class="directory">/etc/shorewall</filename> except
<filename>shorewall.conf</filename>. You can copy any other files
you need from one of the <ulink
url="GettingStarted.html">Samples</ulink> or from <filename
class="directory">/usr/share/shorewall/configfiles/</filename>.</para>
</listitem>
<listitem>
<para>If the install script was unable to configure Shorewall to be
started automatically at boot, see <ulink
url="starting_and_stopping_shorewall.htm">these
instructions</ulink>.</para>
</listitem>
</orderedlist>
<para>Beginning with shorewall 4.4.20.1, the installer also supports a
<option>-a</option> (annotated) option. Beginning with that release, the
standard configuration files (including samples) may be annotated with
the contents of the associated manpage. The <option>-a</option> option
enables that behavior. The default remains that the configuration files
do not include documentation.</para>
<section>
<title>Executables in /usr and Perl Modules</title>
<para>Distributions have different philosophies about the proper file
hierarchy. Two issures are particularly contentious:</para>
<itemizedlist>
<listitem>
<para>Executable files in
<filename>/usr/share/shorewall*</filename>. These include;</para>
<itemizedlist>
<listitem>
<para>getparams</para>
</listitem>
<listitem>
<para>compiler.pl</para>
</listitem>
<listitem>
<para>wait4ifup</para>
</listitem>
<listitem>
<para>shorecap</para>
</listitem>
<listitem>
<para>ifupdown</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>Perl Modules in
<filename>/usr/share/shorewall/Shorewall</filename>.</para>
</listitem>
</itemizedlist>
<para>To allow distributions to designate alternate locations for
these files, the installers (install.sh) from 4.4.19 onward support
the following environmental variables:</para>
<variablelist>
<varlistentry>
<term>LIBEXEC</term>
<listitem>
<para>Determines where in /usr getparams, compiler.pl,
wait4ifup, shorecap and ifupdown are installed. Shorewall and
Shorewall6 must be installed with the same value of LIBEXEC. The
listed executables are installed in
<filename>/usr/${LIBEXEC}/shorewall*</filename>. The default
value of LIBEXEC is 'share'. LIBEXEC is recognized by all
installers and uninstallers.</para>
<para>Beginning with Shorewall 4.4.20, you can specify an
absolute path name for LIBEXEC, in which case the listed
executables will be installed in ${LIBEXEC}/shorewall*.</para>
<para>Beginning with Shorewall 4.5.1, you must specify an
absolute pathname for LIBEXEC.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PERLLIB</term>
<listitem>
<para>Determines where in <filename>/usr </filename>the
Shorewall Perl modules are installed. Shorewall and Shorewall6
must be installed with the same value of PERLLIB. The modules
are installed in <filename>/usr/${PERLLIB}/Shorewall</filename>.
The default value of PERLLIB is 'share/shorewall'. PERLLIB is
only recognized by the Shorewall and Shorewall6
installers.</para>
<para>Beginning with Shorewall 4.4.20, you can specify an
absolute path name for PERLLIB, in which case the Shorewall Perl
modules will be installed in ${PERLLIB}/Shorewall/.</para>
<para>Beginning with Shorewall 4.5.1, you must specify an
absolute pathname for PERLLIB.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>MANDIR</term>
<listitem>
<para>Determines where the man pages are installed. Default is
distribution-dependent as shown below.</para>
</listitem>
</varlistentry>
</variablelist>
</section>
<section id="Locations">
<title>Default Install Locations</title>
<para>The default install locations are distribution dependent as
shown in the following sections. These are the locations that are
chosen by the install.sh scripts.</para>
<section>
<title>All Distributions</title>
<informaltable>
<tgroup cols="2">
<tbody>
<row>
<entry><emphasis role="bold">COMPONENT</emphasis></entry>
<entry><emphasis role="bold">LOCATION</emphasis></entry>
</row>
<row>
<entry>man pages</entry>
<entry>/usr/share/man/ (may ve overridden using
MANDIR)</entry>
</row>
<row>
<entry>Shorewall Perl Modules</entry>
<entry>/usr/share/shorewall/ (may be overridden using
PERLLIB)</entry>
</row>
<row>
<entry>Executable helper scripts (compiler.pl, getparams,
wait4ifup)</entry>
<entry>/usr/share/shorewall/ (may be overridden using
LIBEXEC)</entry>
</row>
<row>
<entry>ifupdown.sh (from Shorewall-init)</entry>
<entry>/usr/share/shorewall-init/ (may be overridden using
LIBEXEC)</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>
<section>
<title>Debian</title>
<informaltable>
<tgroup cols="2">
<tbody>
<row>
<entry><emphasis role="bold">COMPONENT</emphasis></entry>
<entry><emphasis role="bold">LOCATION</emphasis></entry>
</row>
<row>
<entry>CLI programs</entry>
<entry>/sbin/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>Distribution-specific configuration file</entry>
<entry>/etc/default/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>Init Scripts</entry>
<entry>/etc/init.d/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>ifupdown scripts from Shorewall-init</entry>
<entry>/etc/network/if-up.d/shorewall,
/etc/network/if-post-down.d/shorewall</entry>
</row>
<row>
<entry>ppp ifupdown scripts from Shorewall-init</entry>
<entry>/etc/ppp/ip-up.d/shorewall,
/etc/ppp/ip-down.d/shorewall /etc/ppp/ipv6-up.d/shorewall
/etc/ppp/ipv6-down.d/shorewall</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>
<section>
<title>Redhat and Derivatives</title>
<informaltable>
<tgroup cols="2">
<tbody>
<row>
<entry><emphasis role="bold">COMPONENT</emphasis></entry>
<entry><emphasis role="bold">LOCATION</emphasis></entry>
</row>
<row>
<entry>CLI programs</entry>
<entry>/sbin/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>Distribution-specific configuration file</entry>
<entry>/etc/sysconfig/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>Init Scripts</entry>
<entry>/etc/rc.d/init.d/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>ifupdown scripts from Shorewall-init</entry>
<entry>/sbin/ifup-local, /sbin/ifdown-local</entry>
</row>
<row>
<entry>ppp ifupdown scripts from Shorewall-init</entry>
<entry>/etc/ppp/ip-up.local, /etc/ppp/ip-down.local</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>
<section>
<title>SuSE</title>
<informaltable>
<tgroup cols="2">
<tbody>
<row>
<entry><emphasis role="bold">COMPONENT</emphasis></entry>
<entry><emphasis role="bold">LOCATION</emphasis></entry>
</row>
<row>
<entry>CLI programs</entry>
<entry>/sbin/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>Distribution-specific configuration file</entry>
<entry>/etc/sysconfig/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>Init Scripts</entry>
<entry>/etc/init.d/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>ifupdown scripts from Shorewall-init</entry>
<entry>/etc/sysconfig/network/if-up.d/shorewall,
/etc/sysconfig/network/if-down.d/shorewall</entry>
</row>
<row>
<entry>ppp ifupdown scripts from Shorewall-init</entry>
<entry>/etc/ppp/ip-up.d/shorewall,
/etc/ppp/ip-down.d/shorewall /etc/ppp/ipv6-up.d/shorewall
/etc/ppp/ipv6-down.d/shorewall</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>
<section>
<title>Cygwin</title>
<informaltable>
<tgroup cols="2">
<tbody>
<row>
<entry><emphasis role="bold">COMPONENT</emphasis></entry>
<entry><emphasis role="bold">LOCATION</emphasis></entry>
</row>
<row>
<entry>CLI programs</entry>
<entry>/bin/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>Distribution-specific configuration file</entry>
<entry>N/A</entry>
</row>
<row>
<entry>Init Scripts</entry>
<entry>N/A</entry>
</row>
<row>
<entry>ifupdown scripts from Shorewall-init</entry>
<entry>N/A</entry>
</row>
<row>
<entry>ppp ifupdown scripts from Shorewall-init</entry>
<entry>N/A</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>
<section>
<title>OS X</title>
<informaltable>
<tgroup cols="2">
<tbody>
<row>
<entry><emphasis role="bold">COMPONENT</emphasis></entry>
<entry><emphasis role="bold">LOCATION</emphasis></entry>
</row>
<row>
<entry>CLI programs</entry>
<entry>/sbin/<replaceable>product</replaceable></entry>
</row>
<row>
<entry>Distribution-specific configuration file</entry>
<entry>N/A</entry>
</row>
<row>
<entry>Init Scripts</entry>
<entry>N/A</entry>
</row>
<row>
<entry>ifupdown scripts from Shorewall-init</entry>
<entry>N/A</entry>
</row>
<row>
<entry>ppp ifupdown scripts from Shorewall-init</entry>
<entry>N/A</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>
</section>
</section>
</section>
<section id="Debian">
<title>Install the .deb</title>
<important>
<para>Once you have installed the .deb packages and before you attempt
to configure Shorewall, please heed the advice of Lorenzo Martignoni,
former Shorewall Debian Maintainer:</para>
<para><quote>For more information about Shorewall usage on Debian system
please look at /usr/share/doc/shorewall-common/README.Debian provided by
[the] shorewall Debian package.</quote></para>
</important>
<para>The easiest way to install Shorewall on Debian, is to use
apt-get<command>.</command></para>
<para>First, to ensure that you are installing the latest version of
Shorewall, please modify your
<filename>/etc/apt/preferences:</filename></para>
<para><programlisting>Package: shorewall
Pin: release o=Debian,a=testing
Pin-Priority: 700
Package: shorewall-doc
Pin: release o=Debian,a=testing
Pin-Priority: 700</programlisting><emphasis role="bold"><emphasis>Then
run:</emphasis></emphasis><programlisting># apt-get update
# apt-get install shorewall</programlisting></para>
<para><emphasis><emphasis role="bold">Once you have completed configuring
Shorewall, you can enable startup at boot time by setting startup=1 in
<filename>/etc/default/shorewall</filename>.</emphasis></emphasis></para>
</section>
<section id="Upgrade">
<title>General Notes about Upgrading Shorewall</title>
<para>Most problems associated with upgrades come from two causes:</para>
<itemizedlist>
<listitem>
<para>The user didn't read and follow the migration considerations in
the release notes (these are also reproduced in the <ulink
url="upgrade_issues.htm">Shorewall Upgrade Issues</ulink>).</para>
</listitem>
<listitem>
<para>The user mis-handled the
<filename>/etc/shorewall/shorewall.conf</filename> file during
upgrade. Shorewall is designed to allow the default behavior of the
product to evolve over time. To make this possible, the design assumes
that <emphasis role="bold">you will not replace your current
shorewall.conf</emphasis> <emphasis role="bold">file during
upgrades</emphasis>. It is recommended that after you first install
Shorewall that you modify
<filename>/etc/shorewall/shorewall.conf</filename> so as to prevent
your package manager from overwriting it during subsequent upgrades
(since the addition of STARTUP_ENABLED, such modification is assured
since you must manually change the setting of that option). If you
feel absolutely compelled to have the latest options in your
shorewall.conf then you must proceed carefully. You should determine
which new options have been added and you must reset their value (e.g.
OPTION=""); otherwise, you will get different behavior from what you
expect.</para>
</listitem>
</itemizedlist>
</section>
<section id="Upgrade_RPM">
<title>Upgrade using RPM</title>
<para>If you already have the Shorewall RPM installed and are upgrading to
a new version:</para>
<orderedlist>
<listitem>
<para><emphasis role="bold">Be sure that you have the correct RPM
package!</emphasis></para>
<para>The standard RPM package from shorewall.net and the mirrors is
known to work with <trademark>SUSE</trademark>, Power PPC, Trustix and
TurboLinux. There is also an RPM package provided by Simon Matter that
is tailored for RedHat/Fedora and another package from Jack Coates
that is customized for Mandriva. If you try to upgrade using the wrong
package, it probably won't work.<important>
<para>Simon Matter names his '<emphasis>common</emphasis>' rpm
'<emphasis>shorewall</emphasis>' rather than
'<emphasis>shorewall-common</emphasis>'.</para>
</important></para>
</listitem>
<listitem>
<para>If you are upgrading from a 2.x or 3.x version to a 4.x version
or later, please see the <ulink url="upgrade_issues.htm">upgrade
issues</ulink> for specific instructions.</para>
</listitem>
<listitem>
<para>Upgrade the RPM</para>
<programlisting><command>rpm -Uvh <shorewall rpm file> </command></programlisting>
<note>
<para>Shorewall is dependent on the iproute package. Unfortunately,
some distributions call this package iproute2 which will cause the
upgrade of Shorewall to fail with the diagnostic:</para>
<programlisting>error: failed dependencies:iproute is needed by shorewall-3.2.1-1</programlisting>
<para>This may be worked around by using the --nodeps option of
rpm.</para>
<programlisting><command>rpm -Uvh --nodeps <shorewall rpm> ...</command></programlisting>
</note>
</listitem>
<listitem>
<para>See if there are any incompatibilities between your
configuration and the new Shorewall version and correct as
necessary.</para>
<programlisting><command>shorewall check</command></programlisting>
</listitem>
<listitem>
<para>Restart the firewall.</para>
<programlisting><command>shorewall restart</command></programlisting>
</listitem>
</orderedlist>
</section>
<section id="Upgrade_Tarball">
<title>Upgrade using tarball</title>
<para><important>
<para>If you are upgrading from a 2.x or 3.x version to a 4.x version
or later, please see the <ulink url="upgrade_issues.htm">upgrade
issues</ulink> for specific instructions.</para>
</important></para>
<para>If you are upgrading to version 4.5.0 or later, you must first
install or upgrade the Shorewall-core package:</para>
<orderedlist>
<listitem>
<para>unpack the tarballs:<programlisting><command>tar -jxf shorewall-core-4.5.0.tar.bz2</command></programlisting></para>
</listitem>
<listitem>
<para>cd to the shorewall directory (the version is encoded in the
directory name as in <quote>shorewall-core-4.5.0</quote>).</para>
</listitem>
<listitem>
<para>Type:</para>
<programlisting><command>./install.sh </command></programlisting>
</listitem>
</orderedlist>
<para>If you already have Shorewall installed and are upgrading to a new
version using the tarball:</para>
<orderedlist>
<listitem>
<para>unpack the tarball:<programlisting><command>tar -jxf shorewall-4.5.0.tar.bz2</command></programlisting></para>
</listitem>
<listitem>
<para>cd to the shorewall-perl directory (the version is encoded in
the directory name as in <quote>shorewall-4.5.0</quote>).</para>
</listitem>
<listitem>
<para>Type:</para>
<programlisting><command>./install.sh</command></programlisting>
<para>or if you are installing Shorewall or Shorewall6 version 4.4.8
or later, you may type:</para>
<programlisting><command>./install.sh -s</command></programlisting>
<para>The <emphasis role="bold">-s</emphasis> option supresses
installation of all files in <filename
class="directory">/etc/shorewall</filename> except
<filename>shorewall.conf</filename>. You can copy any other files you
need from one of the <ulink url="GettingStarted.html">Samples</ulink>
or from <filename
class="directory">/usr/share/shorewall/configfiles/</filename>.</para>
</listitem>
<listitem>
<para>See if there are any incompatibilities between your
configuration and the new Shorewall version and correct as
necessary.</para>
<programlisting><command>shorewall check</command></programlisting>
</listitem>
<listitem>
<para>Start the firewall by typing</para>
<programlisting><command>shorewall start</command></programlisting>
</listitem>
<listitem>
<para>If the install script was unable to configure Shorewall to be
started automatically at boot, see <ulink
url="starting_and_stopping_shorewall.htm">these
instructions</ulink>.</para>
</listitem>
</orderedlist>
</section>
<section id="Upgrade_Deb">
<title>Upgrading the .deb</title>
<warning>
<para>When the installer asks if you want to replace
/etc/shorewall/shorewall.conf with the new version, we strongly advise
you to say No. See <link linkend="Upgrade">above</link>.</para>
</warning>
</section>
<section id="Config_Files">
<title>Configuring Shorewall</title>
<para>You will need to edit some or all of the configuration files to
match your setup. In most cases, the <ulink
url="shorewall_quickstart_guide.htm">Shorewall QuickStart Guides</ulink>
contain all of the information you need.</para>
</section>
<section id="Uninstall">
<title>Uninstall/Fallback</title>
<para>See <quote><ulink url="fallback.htm">Fallback and
Uninstall</ulink></quote>.</para>
</section>
</article>
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