mirror of
https://github.com/Zeckmathederg/glfs.git
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15b3bc29ce
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@6409 af4574ff-66df-0310-9fd7-8a98e5e911e0
318 lines
12 KiB
XML
318 lines
12 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!-- Inserted as a reminder to do this. The mention of a test suite
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is usually right before the root user installation commands. Please
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delete these 12 (including one blank) lines after you are done.-->
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<!-- Use one of the two mentions below about a test suite,
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delete the line that is not applicable. Of course, if the
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test suite uses syntax other than "make check", revise the
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line to reflect the actual syntax to run the test suite -->
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<!-- <para>This package does not come with a test suite.</para> -->
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<!-- <para>To test the results, issue: <command>make check</command>.</para> -->
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<!ENTITY tripwire-download-http "http://downloads.sourceforge.net/tripwire/tripwire-&tripwire-version;-src.tar.bz2?download">
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<!ENTITY tripwire-download-ftp " ">
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<!ENTITY tripwire-md5sum "b371f79ac23cacc9ad40b1da76b4a0c4">
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<!ENTITY tripwire-size "1.2 MB">
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<!ENTITY tripwire-buildsize "37 MB">
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<!ENTITY tripwire-time "1.6 SBU">
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]>
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<sect1 id="tripwire" xreflabel="Tripwire-&tripwire-version;">
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<?dbhtml filename="tripwire.html"?>
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<title>Tripwire-&tripwire-version;</title>
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<indexterm zone="tripwire">
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<primary sortas="a-Tripwire">Tripwire</primary>
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</indexterm>
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<sect2 role="package">
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<title>Introduction to Tripwire</title>
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<para>The <application>Tripwire</application> package contains programs
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used to verify the integrity of the files on a given system.</para>
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<bridgehead renderas="sect3">Package Information</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>Download (HTTP): <ulink url="&tripwire-download-http;"/></para>
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</listitem>
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<listitem>
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<para>Download (FTP): <ulink url="&tripwire-download-ftp;"/></para>
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</listitem>
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<listitem>
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<para>Download MD5 sum: &tripwire-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download size: &tripwire-size;</para>
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</listitem>
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<listitem>
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<para>Estimated disk space required: &tripwire-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &tripwire-time;</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">Additional Downloads</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>Required patch:
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<ulink url="&patch-root;/tripwire-&tripwire-version;-gcc4_build_fixes-1.patch"/>
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</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">Tripwire Dependencies</bridgehead>
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<bridgehead renderas="sect4">Required</bridgehead>
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<para role="required"><xref linkend="openssl"/></para>
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<bridgehead renderas="sect4">Optional</bridgehead>
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<para role="optional">An <xref linkend="server-mail"/></para>
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<para condition="html" role="usernotes">User Notes:
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<ulink url="&blfs-wiki;/tripwire"/></para>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Tripwire</title>
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<para>Compile <application>Tripwire</application> by running the following
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commands:</para>
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<screen><userinput>ln -s contrib install &&
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patch -Np1 -i ../tripwire-&tripwire-version;-gcc4_build_fixes-1.patch &&
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sed -i -e 's@TWDB="${prefix}@TWDB="/var@' install/install.cfg &&
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./configure --prefix=/usr --sysconfdir=/etc/tripwire &&
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make</userinput></screen>
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<warning><para>The default configuration is to use a local MTA. If
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you don't have an MTA installed and have no wish to install
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one, modify <filename>install/install.cfg</filename> to use an SMTP
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server instead. Otherwise the install will fail.</para></warning>
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<para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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<screen role="root"><userinput>make install &&
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cp -v policy/*.txt /usr/share/doc/tripwire</userinput></screen>
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</sect2>
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<sect2 role="commands">
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<title>Command Explanations</title>
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<para><command>ln -s contrib install</command>: This command creates
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a symbolic link in the build directory needed for installation.</para>
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<para><command>sed -i -e 's@TWDB="${prefix}@TWDB="/var@'
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install/install.cfg</command>: This command tells the package to install
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the program database and reports in
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<filename class="directory">/var/lib/tripwire</filename>.</para>
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<para><command>make install</command>: This command creates the
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<application>Tripwire</application> security keys as well as installing
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the binaries. There are two keys: a site key and a local key which are
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stored in <filename class="directory">/etc/tripwire/</filename>.</para>
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<para><command>cp -v policy/*.txt /usr/share/doc/tripwire</command>: This
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command installs the documentation.</para>
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</sect2>
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<sect2 role="configuration">
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<title>Configuring Tripwire</title>
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<sect3 id="tripwire-config">
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<title>Config Files</title>
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<para><filename>/etc/tripwire/*</filename></para>
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<indexterm zone="tripwire tripwire-config">
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<primary sortas="e-etc-tripwire">/etc/tripwire/*</primary>
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</indexterm>
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</sect3>
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<sect3>
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<title>Configuration Information</title>
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<para><application>Tripwire</application> uses a policy file to
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determine which files are integrity checked. The default policy
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file (<filename>/etc/tripwire/twpol.txt</filename>) is for a
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default Redhat installation and will need to be updated for your
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system.</para>
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<para>Policy files should be tailored to each individual distribution
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and/or installation. Some custom policy files can be found below:</para>
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<literallayout><ulink url="http://home.iprimus.com.au/glombowski/blfs/twpol-all.txt"/>
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Checks integrity of all files
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<ulink url="http://home.iprimus.com.au/glombowski/blfs/twpol-lfs.txt"/>
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Custom policy file for Base LFS 3.0 system
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<ulink url="http://home.iprimus.com.au/glombowski/blfs/twpol-suse7.2.txt"/>
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Custom policy file for SuSE 7.2 system</literallayout>
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<para>Download the custom policy file you'd like to try, copy it into
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<filename class="directory">/etc/tripwire/</filename>, and use it instead
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of <filename>twpol.txt</filename>. It is, however, recommended that you
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make your own policy file. Get ideas from the examples above and read
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<filename>/usr/share/doc/tripwire/policyguide.txt</filename> for
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additional information. <filename>twpol.txt</filename> is a good policy
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file for beginners as it will note any changes to the file system and can
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even be used as an annoying way of keeping track of changes for
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uninstallation of software.</para>
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<para>After your policy file has been transferred to
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<filename class="directory">/etc/tripwire/</filename> you may begin
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the configuration steps (perform as the
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<systemitem class='username'>root</systemitem>):</para>
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<screen role="root"><userinput>twadmin --create-polfile --site-keyfile /etc/tripwire/site.key \
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/etc/tripwire/twpol.txt &&
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tripwire --init</userinput></screen>
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</sect3>
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<sect3>
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<title>Usage Information</title>
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<para>To use <application>Tripwire</application> after creating a policy
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file to run a report, use the following command:</para>
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<screen role="root"><userinput>tripwire --check > /etc/tripwire/report.txt</userinput></screen>
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<para>View the output to check the integrity of your files. An automatic
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integrity report can be produced by using a cron facility to schedule
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the runs.</para>
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<para>Please note that after you run an integrity check, you must
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examine the report (or email) and then modify the
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<application>Tripwire</application> database to reflect the changed
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files on your system. This is so that <application>Tripwire</application>
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will not continually notify you that files you intentionally changed are
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a security violation. To do this you must first <command>ls -l
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/var/lib/tripwire/report/</command> and note the name of the newest file
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which starts with <filename>linux-</filename> and ends in
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<filename>.twr</filename>. This encrypted file was created during the
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last report creation and is needed to update the
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<application>Tripwire</application> database of your system. Then, as the
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<systemitem class='username'>root</systemitem> user, type
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in the following command making the appropriate substitutions for
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<replaceable><?></replaceable>:</para>
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<screen role="root"><userinput>tripwire --update -twrfile \
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/var/lib/tripwire/report/linux-<replaceable><???????></replaceable>-<replaceable><??????></replaceable>.twr</userinput></screen>
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<para>You will be placed into <application>vim</application> with a copy
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of the report in front of you. If all the changes were good, then just
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type <command>:x</command> and after entering your local key, the database
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will be updated. If there are files which you still want to be warned
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about, remove the 'x' before the filename in the report and type
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<command>:x</command>.</para>
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<para>A good summary of tripwire operations can be found at
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<ulink url="http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guide/ch-tripwire.html"/>.</para>
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</sect3>
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<sect3>
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<title>Changing the Policy File</title>
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<para>If you are unhappy with your policy file and would like to modify
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it or use a new one, modify the policy file and then execute the following
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commands as the <systemitem class='username'>root</systemitem> user:</para>
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<screen role="root"><userinput>twadmin --create-polfile /etc/tripwire/twpol.txt &&
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tripwire --init</userinput></screen>
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</sect3>
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</sect2>
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<sect2 role="content">
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<title>Contents</title>
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<segmentedlist>
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<segtitle>Installed Programs</segtitle>
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<segtitle>Installed Libraries</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>siggen, tripwire, twadmin, and twprint.</seg>
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<seg>None</seg>
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<seg>/etc/tripwire, /usr/share/doc/tripwire, and /var/lib/tripwire</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<?dbhtml list-presentation="table"?>
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<varlistentry id="siggen">
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<term><command>siggen</command></term>
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<listitem>
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<para>is a signature gathering utility that displays
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the hash function values for the specified files.</para>
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<indexterm zone="tripwire siggen">
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<primary sortas="b-siggen">siggen</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id='tripwire-program'>
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<term><command>tripwire</command></term>
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<listitem>
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<para>is the main file integrity checking program.</para>
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<indexterm zone="tripwire tripwire">
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<primary sortas="b-tripwire">tripwire</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id='twadmin'>
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<term><command>twadmin</command></term>
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<listitem>
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<para>administrative and utility tool used to perform
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certain administrative functions related to
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<application>Tripwire</application> files and configuration
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options.</para>
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<indexterm zone="tripwire twadmin">
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<primary sortas="b-twadmin">twadmin</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id='twprint'>
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<term><command>twprint</command></term>
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<listitem>
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<para>prints <application>Tripwire</application>
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database and report files in clear text format.</para>
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<indexterm zone="tripwire twprint">
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<primary sortas="b-twprint">twprint</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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</sect1>
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