mirror of
https://github.com/Zeckmathederg/glfs.git
synced 2025-02-01 04:52:12 +08:00
a0f03b0675
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@2591 af4574ff-66df-0310-9fd7-8a98e5e911e0
224 lines
8.6 KiB
XML
224 lines
8.6 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
|
|
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
|
|
<!ENTITY % general-entities SYSTEM "../../general.ent">
|
|
%general-entities;
|
|
|
|
<!ENTITY tripwire-download-http "http://prdownloads.sourceforge.net/tripwire/tripwire-&tripwire-version;.tar.gz">
|
|
<!ENTITY tripwire-download-ftp "ftp://ftp.fu-berlin.de/unix/security/tripwire/tripwire-&tripwire-version;.tar.gz">
|
|
<!ENTITY tripwire-size "1.4 MB">
|
|
<!ENTITY tripwire-buildsize "63 MB">
|
|
<!ENTITY tripwire-time "2.35 SBU">
|
|
]>
|
|
|
|
<sect1 id="tripwire" xreflabel="Tripwire-&tripwire-version;">
|
|
<sect1info>
|
|
<othername>$LastChangedBy: $</othername>
|
|
<date>$Date: $</date>
|
|
</sect1info>
|
|
<?dbhtml filename="tripwire.html"?>
|
|
<title>Tripwire-&tripwire-version;</title>
|
|
|
|
<sect2>
|
|
<title>Introduction to <application>Tripwire</application></title>
|
|
|
|
<para>The <application>Tripwire</application> package contains programs used
|
|
to verify the integrity of the files on a given system.</para>
|
|
|
|
<sect3><title>Package information</title>
|
|
<itemizedlist spacing='compact'>
|
|
<listitem><para>Download (HTTP): <ulink
|
|
url="&tripwire-download-http;"/></para></listitem>
|
|
<listitem><para>Download (FTP): <ulink
|
|
url="&tripwire-download-ftp;"/></para></listitem>
|
|
<listitem><para>Download size: &tripwire-size;</para></listitem>
|
|
<listitem><para>Estimated Disk space required:
|
|
&tripwire-buildsize;</para></listitem>
|
|
<listitem><para>Estimated build time:
|
|
&tripwire-time;</para></listitem></itemizedlist>
|
|
</sect3>
|
|
|
|
<sect3><title>Additional downloads</title>
|
|
<itemizedlist spacing='compact'>
|
|
<listitem><para>Required patch to fix multiple build issues (see patch for
|
|
more information): <ulink
|
|
url="&patch-root;/tripwire-&tripwire-version;-gcc3_build_fixes-1.patch"/></para></listitem>
|
|
</itemizedlist>
|
|
</sect3>
|
|
|
|
<sect3><title><application>Tripwire</application> dependencies</title>
|
|
<sect4><title>Optional</title>
|
|
<para><acronym>MTA</acronym> (See <xref linkend="server-mail"/>)</para></sect4>
|
|
</sect3>
|
|
|
|
</sect2>
|
|
|
|
<sect2>
|
|
<title>Installation of <application>Tripwire</application></title>
|
|
|
|
<para>Compile <application>Tripwire</application> by running the following
|
|
commands:</para>
|
|
|
|
<screen><userinput><command>patch -Np1 -i ../tripwire-&tripwire-version;-gcc3_build_fixes-1.patch &&
|
|
make -C src release &&
|
|
cp install/install.{sh,cfg} .</command></userinput></screen>
|
|
|
|
<para>The default configuration is to use a local <acronym>MTA</acronym>. If
|
|
you don't have an <acronym>MTA</acronym> installed and have no wish to install
|
|
one, modify <filename>install.cfg</filename> to use an <acronym>SMTP</acronym>
|
|
server instead. Install <application>Tripwire</application> by running the
|
|
following commands:</para>
|
|
|
|
<screen><userinput><command>./install.sh &&
|
|
cp /etc/tripwire/tw.cfg /usr/sbin &&
|
|
cp policy/*.txt /usr/share/doc/tripwire</command></userinput></screen>
|
|
|
|
</sect2>
|
|
|
|
<sect2>
|
|
<title>Command explanations</title>
|
|
|
|
<para><command>make release</command>: This command creates the
|
|
<application>Tripwire</application> binaries.</para>
|
|
|
|
<para><command>cp install.{sh,cfg} .</command>: These files are copied to
|
|
the main <application>Tripwire</application> directory so that the script
|
|
can be used to install the package.</para>
|
|
|
|
<para><command>cp policy/*.txt /usr/share/doc/tripwire</command>: This command
|
|
installs the documentation.</para>
|
|
|
|
</sect2>
|
|
|
|
<sect2>
|
|
<title>Configuring <application>Tripwire</application></title>
|
|
|
|
<sect3><title>Config files</title>
|
|
<para><filename>/etc/tripwire/*</filename></para>
|
|
</sect3>
|
|
|
|
<sect3><title>Configuration Information</title>
|
|
|
|
<para><application>Tripwire</application> uses a policy file to determine which
|
|
files are integrity checked. The default policy file
|
|
(<filename>/etc/tripwire/twpol.txt</filename>) is for a default
|
|
installation of Redhat 7.0 and is woefully outdated.</para>
|
|
|
|
<para>Policy files are also a custom thing and should be tailored to each
|
|
individual distribution and/or installation. Some custom policy files can be
|
|
found below: </para>
|
|
|
|
<screen><ulink url="http://home.iprimus.com.au/glombowski/blfs/twpol-all.txt"/>
|
|
Checks integrity of all files
|
|
<ulink url="http://home.iprimus.com.au/glombowski/blfs/twpol-lfs.txt"/>
|
|
Custom policy file for Base LFS 3.0 system
|
|
<ulink url="http://home.iprimus.com.au/glombowski/blfs/twpol-suse7.2.txt"/>
|
|
Custom policy file for SuSE 7.2 system</screen>
|
|
|
|
<para>Download the custom policy file you'd like to try, copy it into
|
|
<filename class="directory">/etc/tripwire/</filename>, and use it instead of
|
|
<filename>twpol.txt</filename>. It is, however, recommended that you make
|
|
your own policy file. Get ideas from the examples above and read
|
|
<filename>/usr/share/doc/tripwire/policyguide.txt</filename> for additional
|
|
information. <filename>twpol.txt</filename> is a good policy file for beginners
|
|
as it will note any changes to the file system and can even be used as an
|
|
annoying way of keeping track of changes for uninstallation of software.</para>
|
|
|
|
<para>After your policy file has been transferred to
|
|
<filename class="directory">/etc/tripwire/</filename> you may begin the
|
|
configuration steps:</para>
|
|
|
|
<screen><userinput><command>twadmin -m P /etc/tripwire/twpol.txt &&
|
|
tripwire -m i</command></userinput></screen>
|
|
|
|
<para>During installation <application>Tripwire</application> will create two
|
|
keys: a site key and a local key which are stored in
|
|
<filename class="directory">/etc/tripwire/</filename>.</para>
|
|
|
|
</sect3>
|
|
|
|
<sect3><title>Usage Information</title>
|
|
<para>To use <application>Tripwire</application> after creating a policy file
|
|
to run a report, use the following command:</para>
|
|
|
|
<screen><userinput><command>tripwire -m c > /etc/tripwire/report.txt</command></userinput></screen>
|
|
|
|
<para>View the output to check the integrity of your files. An automatic
|
|
integrity report can be produced by using a cron facility to schedule
|
|
the runs.</para>
|
|
|
|
<para>Please note that after you run an integrity check, you must examine
|
|
the report (or email) and then modify the <application>Tripwire</application>
|
|
database to reflect the changed files on your system. This is so that
|
|
<application>Tripwire</application> will not continually notify you that
|
|
files you intentionally changed are a security violation. To do this you
|
|
must first <command>ls -l /var/lib/tripwire/report/</command> and note
|
|
the name of the newest file which starts with <filename>linux-</filename> and
|
|
ends in <filename>.twr</filename>. This encrypted file was created during the
|
|
last report creation and is needed to update the
|
|
<application>Tripwire</application> database of your
|
|
system. Then, type in the following command making the appropriate
|
|
substitutions for <replaceable>[?]</replaceable>:</para>
|
|
|
|
<screen><userinput><command>tripwire -m u -r /var/lib/tripwire/report/linux-<replaceable>[???????]</replaceable>-<replaceable>[??????]</replaceable>.twr</command></userinput></screen>
|
|
|
|
<para>You will be placed into <application>vim</application> with a copy of
|
|
the report in front of you. If all the changes were good, then just type
|
|
<command>:x</command> and after entering your local key, the database will be
|
|
updated. If there are files which you still want to be warned about, remove the
|
|
'x' before the filename in the report and type <command>:x</command>.</para>
|
|
|
|
</sect3>
|
|
|
|
<sect3><title>Changing the Policy File</title>
|
|
|
|
<para>If you are unhappy with your policy file and would like to modify it or
|
|
use a new one, modify the policy file and then execute the following
|
|
commands:</para>
|
|
|
|
<screen><userinput><command>twadmin -m P /etc/tripwire/twpol.txt &&
|
|
tripwire -m i</command></userinput></screen>
|
|
|
|
</sect3>
|
|
|
|
</sect2>
|
|
|
|
<sect2>
|
|
<title>Contents</title>
|
|
|
|
<para>The <application>Tripwire</application> package contains
|
|
<command>siggen</command>, <command>tripwire</command>,
|
|
<command>twadmin</command> and <command>twprint</command>.</para>
|
|
|
|
</sect2>
|
|
|
|
<sect2>
|
|
<title>Description</title>
|
|
|
|
<sect3>
|
|
<title>siggen</title>
|
|
<para><command>siggen</command> is a signature gathering utility that displays
|
|
the hash function values for the specified files.</para></sect3>
|
|
|
|
<sect3>
|
|
<title>tripwire</title>
|
|
<para><command>tripwire</command> is the main file integrity checking program.
|
|
</para></sect3>
|
|
|
|
<sect3>
|
|
<title>twadmin</title>
|
|
<para><command>twadmin</command> is <application>Tripwire</application>'s
|
|
administrative and utility tool used to perform certain administrative
|
|
functions related to <application>Tripwire</application> files and
|
|
configuration options.</para></sect3>
|
|
|
|
<sect3>
|
|
<title>twprint</title>
|
|
<para><command>twprint</command> prints <application>Tripwire</application>
|
|
database and report files in clear text format.</para></sect3>
|
|
|
|
</sect2>
|
|
|
|
</sect1>
|
|
|