[b4b71892] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY tripwire-download-http "http://prdownloads.sourceforge.net/tripwire/tripwire-&tripwire-version;.tar.gz">
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| 8 | <!ENTITY tripwire-download-ftp "ftp://ftp.fu-berlin.de/unix/security/tripwire/tripwire-&tripwire-version;.tar.gz">
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| 9 | <!ENTITY tripwire-size "1.4 MB">
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| 10 | <!ENTITY tripwire-buildsize "63 MB">
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| 11 | <!ENTITY tripwire-time "2.35 SBU">
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| 12 | ]>
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| 13 |
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[79f87f94] | 14 | <sect1 id="tripwire" xreflabel="Tripwire-&tripwire-version;">
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[bae6e15] | 15 | <?dbhtml filename="tripwire.html"?>
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[79f87f94] | 16 | <title>Tripwire-&tripwire-version;</title>
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[f45b1953] | 17 |
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[b4b71892] | 18 | <sect2>
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| 19 | <title>Introduction to <application>Tripwire</application></title>
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| 20 |
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| 21 | <para>The <application>Tripwire</application> package contains the programs
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| 22 | used by <application>Tripwire</application> to verify the integrity of the
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| 23 | files on a given system.</para>
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| 24 |
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| 25 | <sect3><title>Package information</title>
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| 26 | <itemizedlist spacing='compact'>
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| 27 | <listitem><para>Download (HTTP): <ulink
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| 28 | url="&tripwire-download-http;"/></para></listitem>
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| 29 | <listitem><para>Download (FTP): <ulink
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| 30 | url="&tripwire-download-ftp;"/></para></listitem>
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| 31 | <listitem><para>Download size: &tripwire-size;</para></listitem>
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| 32 | <listitem><para>Estimated Disk space required:
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| 33 | &tripwire-buildsize;</para></listitem>
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| 34 | <listitem><para>Estimated build time:
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| 35 | &tripwire-time;</para></listitem></itemizedlist>
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| 36 | </sect3>
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| 37 |
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| 38 | <sect3><title>Additional downloads</title>
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| 39 | <itemizedlist spacing='compact'>
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| 40 | <listitem><para>Required patch to fix multiple build issues (see patch for more information):
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[2744e401] | 41 | <ulink url="&patch-root;/tripwire-&tripwire-version;-gcc3_build_fixes-1.patch"/></para></listitem>
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[b4b71892] | 42 | </itemizedlist>
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| 43 | </sect3>
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| 44 |
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[d140e26] | 45 | <sect3><title><application>Tripwire</application> dependencies</title>
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[b4b71892] | 46 | <sect4><title>Optional</title>
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| 47 | <para>MTA (See <xref linkend="server-mail"/>)</para></sect4>
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| 48 | </sect3>
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| 49 |
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| 50 | </sect2>
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| 51 |
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| 52 | <sect2>
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| 53 | <title>Installation of <application>Tripwire</application></title>
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| 54 |
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| 55 | <para>Compile <application>Tripwire</application> by running the following
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| 56 | commands:</para>
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| 57 |
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[2744e401] | 58 | <screen><userinput><command>patch -Np1 -i ../tripwire-&tripwire-version;-gcc3_build_fixes-1.patch &&
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[b4b71892] | 59 | make -C src release &&
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| 60 | cp install/install.{sh,cfg} .</command></userinput></screen>
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| 61 |
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| 62 | <para>The default configuration is to use a local MTA. If you don't have
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[d140e26] | 63 | an MTA installed and have no wish to install one, modify
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[b4b71892] | 64 | <filename>install.cfg</filename> to use an SMTP server instead.
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| 65 | Install <application>Tripwire</application> by running the following
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| 66 | commands:</para>
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| 67 |
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| 68 | <screen><userinput><command>./install.sh &&
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| 69 | cp /etc/tripwire/tw.cfg /usr/sbin &&
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| 70 | cp policy/*.txt /usr/share/doc/tripwire</command></userinput></screen>
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| 71 |
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| 72 | </sect2>
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| 73 |
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| 74 | <sect2>
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| 75 | <title>Command explanations</title>
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| 76 |
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| 77 | <para><command>make release</command>: This command creates the
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| 78 | <application>Tripwire</application> binaries.</para>
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| 79 |
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[d140e26] | 80 | <para><command>cp install.{sh,cfg} .</command>: These files are copied to
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| 81 | the main <application>Tripwire</application> directory so that the script
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| 82 | can be used to install the package.</para>
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[b4b71892] | 83 |
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| 84 | <para><command>cp policy/*.txt /usr/share/doc/tripwire</command>: This command
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| 85 | installs the documentation.</para>
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| 86 |
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| 87 | </sect2>
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| 88 |
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| 89 | <sect2>
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| 90 | <title>Configuring <application>Tripwire</application></title>
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| 91 |
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| 92 | <sect3><title>Config files</title>
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| 93 | <para><filename class="directory">/etc/tripwire</filename></para>
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| 94 | </sect3>
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| 95 |
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| 96 | <sect3><title>Configuration Information</title>
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| 97 |
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| 98 | <para><application>Tripwire</application> uses a policy file to determine which
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[d140e26] | 99 | files are integrity checked. The default policy file (<filename>twpol.txt
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[b4b71892] | 100 | </filename> found in <filename class="directory">/etc/tripwire/</filename>) is for a default
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| 101 | installation of Redhat 7.0 and is woefully outdated.</para>
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| 102 |
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| 103 | <para>Policy files are also a custom thing and should be tailored to each
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| 104 | individual distribution and/or installation. Some custom policy files can be
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| 105 | found below: </para>
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| 106 | <screen><ulink url="http://home.iprimus.com.au/glombowski/blfs/twpol-all.txt">http://home.iprimus.com.au/glombowski/blfs/twpol-all.txt</ulink>
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| 107 | Checks integrity of all files
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| 108 | <ulink url="http://home.iprimus.com.au/glombowski/blfs/twpol-lfs.txt">http://home.iprimus.com.au/glombowski/blfs/twpol-lfs.txt</ulink>
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| 109 | Custom policy file for Base LFS 3.0 system
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| 110 | <ulink url="http://home.iprimus.com.au/glombowski/blfs/twpol-suse7.2.txt">http://home.iprimus.com.au/glombowski/blfs/twpol-suse7.2.txt</ulink>
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| 111 | Custom policy file for SuSE 7.2 system</screen>
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| 112 |
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| 113 | <para>Download the custom policy file you'd like to try, copy it into
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| 114 | <filename class="directory">/etc/tripwire/</filename>, and use it instead of
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[d140e26] | 115 | <filename>twpol.txt</filename>. It is, however, recommended that you make
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| 116 | your own policy file. Get ideas from the examples above and read
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| 117 | <filename> /usr/share/doc/tripwire/policyguide.txt</filename>.
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| 118 | <filename>twpol.txt</filename> is a good policy file for beginners as it
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| 119 | will note any changes to the file system and can even be used as an annoying
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| 120 | way of keeping track of changes for uninstallation of software.</para>
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[b4b71892] | 121 |
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| 122 | <para>After your policy file has been transferred to <filename
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[d140e26] | 123 | class="directory">/etc/tripwire/</filename> you may begin the configuration
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| 124 | steps:</para>
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[b4b71892] | 125 |
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| 126 | <screen><userinput><command>twadmin -m P /etc/tripwire/twpol.txt &&
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| 127 | tripwire -m i</command></userinput></screen>
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| 128 |
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| 129 | <para>During installation <application>Tripwire</application> will create two
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| 130 | (2) keys: a site key and a local key which will be stored in <filename
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| 131 | class="directory">/etc/tripwire/</filename>.</para>
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| 132 |
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| 133 | </sect3>
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| 134 |
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| 135 | <sect3><title>Usage Information</title>
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| 136 | <para>To use <application>Tripwire</application> after this and run a report,
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| 137 | use the following command:</para>
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| 138 |
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| 139 | <screen><userinput><command>tripwire -m c > /etc/tripwire/report.txt</command></userinput></screen>
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| 140 |
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| 141 | <para>View the output to check the integrity of your files. An automatic
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| 142 | integrity report can be produced by using a cron facility to schedule
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| 143 | the runs. </para>
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| 144 |
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[d140e26] | 145 | <para>Please note that after you run an integrity check, you must examine
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| 146 | the report (or email) and then modify the <application>Tripwire</application>
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| 147 | database to reflect the changed files on your system. This is so that
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| 148 | <application>Tripwire</application> will not continually notify you that
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[b4b71892] | 149 | files you intentionally changed are a security violation. To do this you
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| 150 | must first <command>ls -l /var/lib/tripwire/report/</command> and note
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| 151 | the name of the newest file which starts with <filename>linux-</filename> and
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| 152 | ends in <filename>.twr</filename>. This encrypted file was created during the
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| 153 | last report creation and is needed to update the
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| 154 | <application>Tripwire</application> database of your
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| 155 | system. Then, type in the following command making the appropriate
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| 156 | substitutions for '?':</para>
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| 157 | <screen><userinput><command>tripwire -m u -r /var/lib/tripwire/report/linux-???????-??????.twr </command></userinput></screen>
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| 158 |
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| 159 | <para>You will be placed into vim with a copy of the report in front of you. If
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| 160 | all the changes were good, then just type <command>:x</command> and after
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| 161 | entering your local key, the database will be updated. If there are files which
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[d140e26] | 162 | you still want to be warned about, remove the x before the filename in
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| 163 | the report and type <command>:x</command>.</para>
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[b4b71892] | 164 |
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| 165 | </sect3>
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| 166 |
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| 167 | <sect3><title>Changing the Policy File</title>
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| 168 |
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| 169 | <para>If you are unhappy with your policy file and would like to modify it or
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| 170 | use a new one, modify the policy file and then execute the following
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| 171 | commands:</para>
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| 172 | <screen><userinput><command>twadmin -m P /etc/tripwire/twpol.txt &&
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| 173 | tripwire -m i</command></userinput></screen>
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| 174 |
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| 175 | </sect3>
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| 176 |
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| 177 | </sect2>
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| 178 |
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| 179 | <sect2>
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| 180 | <title>Contents</title>
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| 181 |
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[d140e26] | 182 | <para>The <application>Tripwire</application> package contains
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| 183 | <command>siggen</command>, <command>tripwire</command>,
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| 184 | <command>twadmin</command> and <command>twprint</command>.</para>
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[b4b71892] | 185 |
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| 186 | </sect2>
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[f45b1953] | 187 |
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| 188 | </sect1>
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[ce2adc3] | 189 |
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