[b4b71892] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[6732c094] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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[b4b71892] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[d6661a1] | 7 | <!ENTITY tripwire-download-http "https://github.com/Tripwire/tripwire-open-source/releases/download/&tripwire-version;/tripwire-open-source-&tripwire-version;.tar.gz">
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[dc94017e] | 8 | <!ENTITY tripwire-download-ftp " ">
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[1dd1887] | 9 | <!ENTITY tripwire-md5sum "a5cf1bc2f235f5d8ca458f00548db6ee">
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[b93e2bde] | 10 | <!ENTITY tripwire-size "980 KB">
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| 11 | <!ENTITY tripwire-buildsize "29 MB">
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[1dd1887] | 12 | <!ENTITY tripwire-time "1.6 SBU (scripting install)">
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[b4b71892] | 13 | ]>
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| 14 |
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[2ee0a026] | 15 | <sect1 id="tripwire" xreflabel="Tripwire-&tripwire-version;">
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[1503942] | 16 | <?dbhtml filename="tripwire.html"?>
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| 17 |
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| 18 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>Tripwire-&tripwire-version;</title>
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| 24 |
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[2ee0a026] | 25 | <indexterm zone="tripwire">
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[1503942] | 26 | <primary sortas="a-Tripwire">Tripwire</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to Tripwire</title>
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| 31 |
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| 32 | <para>The <application>Tripwire</application> package contains programs
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| 33 | used to verify the integrity of the files on a given system.</para>
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| 34 |
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[be2215e] | 35 | &lfs84_checked;
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[fdcbc8d] | 36 |
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[1503942] | 37 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 38 | <itemizedlist spacing="compact">
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| 39 | <listitem>
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| 40 | <para>Download (HTTP): <ulink url="&tripwire-download-http;"/></para>
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| 41 | </listitem>
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| 42 | <listitem>
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| 43 | <para>Download (FTP): <ulink url="&tripwire-download-ftp;"/></para>
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| 44 | </listitem>
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| 45 | <listitem>
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| 46 | <para>Download MD5 sum: &tripwire-md5sum;</para>
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| 47 | </listitem>
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| 48 | <listitem>
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| 49 | <para>Download size: &tripwire-size;</para>
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| 50 | </listitem>
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| 51 | <listitem>
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| 52 | <para>Estimated disk space required: &tripwire-buildsize;</para>
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| 53 | </listitem>
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| 54 | <listitem>
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| 55 | <para>Estimated build time: &tripwire-time;</para>
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| 56 | </listitem>
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| 57 | </itemizedlist>
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[d6661a1] | 58 | <!--
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[e4565e8] | 59 | <note>
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| 60 | <para>
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| 61 | The <application>tripwire</application> source tarball shown above
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| 62 | downloads with the correct name, tripwire-open-source-&tripwire-version;.tar.gz,
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| 63 | if using a browser such as Firefox. If you prefer to use a command line
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| 64 | program such as wget, you normally would obtain
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| 65 | &tripwire-version;.tar.gz. To obtain this package with the proper
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| 66 | filename, run:
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| 67 |
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| 68 | <screen><userinput>wget -c https://github.com/Tripwire/tripwire-open-source/archive/&tripwire-version;.tar.gz \
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| 69 | -O tripwire-open-source-&tripwire-version;.tar.gz</userinput></screen>.
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| 70 | </para>
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| 71 | </note>
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[d6661a1] | 72 | -->
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[1503942] | 73 | <bridgehead renderas="sect3">Tripwire Dependencies</bridgehead>
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[94b42903] | 74 | <!--
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[1619ad5] | 75 | <bridgehead renderas="sect4">Recommended</bridgehead>
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| 76 | <para role="recommended"><xref linkend="openssl"/></para>
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[94b42903] | 77 | -->
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[2f00f964] | 78 |
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[1503942] | 79 | <bridgehead renderas="sect4">Optional</bridgehead>
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[7f5c97e] | 80 | <para role="optional">An <xref linkend="server-mail"/></para>
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[1503942] | 81 |
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[3597eb6] | 82 | <para condition="html" role="usernotes">User Notes:
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| 83 | <ulink url="&blfs-wiki;/tripwire"/></para>
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| 84 |
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[1503942] | 85 | </sect2>
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| 86 |
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| 87 | <sect2 role="installation">
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| 88 | <title>Installation of Tripwire</title>
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| 89 |
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| 90 | <para>Compile <application>Tripwire</application> by running the following
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| 91 | commands:</para>
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| 92 |
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[1dd1887] | 93 | <screen><userinput>sed -e '/^CLOBBER/s/false/true/' \
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| 94 | -e 's|TWDB="${prefix}|TWDB="/var|' \
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[e4565e8] | 95 | -e '/TWMAN/ s|${prefix}|/usr/share|' \
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[8b319a8c] | 96 | -e '/TWDOCS/s|${prefix}/doc/tripwire|/usr/share/doc/tripwire-&tripwire-version;|' \
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| 97 | -i installer/install.cfg &&
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[ec66152] | 98 |
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[8b319a8c] | 99 | find . -name Makefile.am | xargs \
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| 100 | sed -i 's/^[[:alpha:]_]*_HEADERS.*=/noinst_HEADERS =/' &&
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[ec66152] | 101 |
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[8b319a8c] | 102 | sed '/dist/d' -i man/man?/Makefile.am &&
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| 103 | autoreconf -fi &&
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| 104 |
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| 105 | ./configure --prefix=/usr --sysconfdir=/etc/tripwire &&
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[1503942] | 106 | make</userinput></screen>
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[305e60de] | 107 |
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[e3a8c644] | 108 | <note><para>The default configuration is to use a local MTA. If
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[2ee0a026] | 109 | you don't have an MTA installed and have no wish to install
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| 110 | one, modify <filename>install/install.cfg</filename> to use an SMTP
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[e3a8c644] | 111 | server instead. Otherwise the install will fail.</para></note>
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[7f5c97e] | 112 |
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[fb3d3afd] | 113 | <para>This package does not come with a test suite.</para>
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| 114 |
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[1503942] | 115 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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[305e60de] | 116 |
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[1503942] | 117 | <screen role="root"><userinput>make install &&
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[8f24784c] | 118 | cp -v policy/*.txt /usr/share/doc/tripwire-&tripwire-version;</userinput></screen>
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[b4b71892] | 119 |
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[8b319a8c] | 120 | <note>
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| 121 | <para>
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| 122 | During <command>make install</command>, several questions
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| 123 | are asked, including passwords. If you want to make a script, you have
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| 124 | to apply a <application>sed</application> before running
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| 125 | <command>make install</command>:
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| 126 | </para>
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| 127 |
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| 128 | <screen><userinput>sed -i -e 's@installer/install.sh@& -n -s <replaceable><site-password></replaceable> -l <replaceable><local-password></replaceable>@' Makefile</userinput></screen>
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| 129 |
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| 130 | <para>
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| 131 | Of course, you should do this with dummy passwords and change them
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| 132 | later.
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| 133 | </para>
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[1dd7b0ae] | 134 |
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| 135 | <para>
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| 136 | Another issue when scripting is that the installer exits when the
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[2634774] | 137 | standard input is not a terminal. You may disable this behavior
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[1dd7b0ae] | 138 | with the following sed:
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| 139 | </para>
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| 140 |
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| 141 | <screen><userinput>sed '/-t 0/,+3d' -i installer/install.sh</userinput></screen>
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| 142 |
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[8b319a8c] | 143 | </note>
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| 144 |
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[1503942] | 145 | </sect2>
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[b4b71892] | 146 |
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[1503942] | 147 | <sect2 role="commands">
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| 148 | <title>Command Explanations</title>
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[b4b71892] | 149 |
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[8b319a8c] | 150 | <para>
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| 151 | <command>sed ... installer/install.cfg</command>: This command tells
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| 152 | the package to install the program database and reports in
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| 153 | <filename class="directory">/var/lib/tripwire</filename> and sets the
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| 154 | proper location for man pages and documentation.
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| 155 | </para>
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[1ad59f2] | 156 |
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| 157 | <para>
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[8b319a8c] | 158 | <command>find ...</command>, <command>sed ...</command>, and
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| 159 | <command>autoreconf -fi</command>: The build system is unusable as is, and
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| 160 | has to be modified for the build to succeed.
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[1ad59f2] | 161 | </para>
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| 162 |
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[8b319a8c] | 163 | <para>
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| 164 | <command>make install</command>: This command creates the
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| 165 | <application>Tripwire</application> security keys as well as installing
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| 166 | the binaries. There are two keys: a site key and a local key which are
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| 167 | stored in <filename class="directory">/etc/tripwire/</filename>.
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| 168 | </para>
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[1ad59f2] | 169 |
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[8b319a8c] | 170 | <para>
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| 171 | <command>cp -v policy/*.txt /usr/doc/tripwire-&tripwire-version;</command>:
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| 172 | This command installs the <application>tripwire</application> sample
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| 173 | policy files with the other <application>tripwire</application>
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| 174 | documentation.i
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| 175 | </para>
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[b4b71892] | 176 |
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[1503942] | 177 | </sect2>
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[b4b71892] | 178 |
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[1503942] | 179 | <sect2 role="configuration">
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| 180 | <title>Configuring Tripwire</title>
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[b4b71892] | 181 |
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[1503942] | 182 | <sect3 id="tripwire-config">
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| 183 | <title>Config Files</title>
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[b4b71892] | 184 |
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[1503942] | 185 | <para><filename>/etc/tripwire/*</filename></para>
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[b4b71892] | 186 |
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[2ee0a026] | 187 | <indexterm zone="tripwire tripwire-config">
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[1503942] | 188 | <primary sortas="e-etc-tripwire">/etc/tripwire/*</primary>
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| 189 | </indexterm>
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[b4b71892] | 190 |
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[1503942] | 191 | </sect3>
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[e40cb61] | 192 |
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[1503942] | 193 | <sect3>
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| 194 | <title>Configuration Information</title>
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| 195 |
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| 196 | <para><application>Tripwire</application> uses a policy file to
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| 197 | determine which files are integrity checked. The default policy
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| 198 | file (<filename>/etc/tripwire/twpol.txt</filename>) is for a
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[fb3d3afd] | 199 | default installation and will need to be updated for your
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[1503942] | 200 | system.</para>
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| 201 |
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[cffe62a2] | 202 | <para>Policy files should be tailored to each individual distribution
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| 203 | and/or installation. Some example policy files can be found in <filename
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[1ad59f2] | 204 | class="directory">/usr/share/doc/tripwire/</filename>.</para>
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[cffe62a2] | 205 |
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| 206 | <para>If desired, copy the policy file you'd like to try into <filename
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| 207 | class="directory">/etc/tripwire/</filename> instead of using the default
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| 208 | policy file, <filename>twpol.txt</filename>. It is, however, recommended
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| 209 | that you edit your policy file. Get ideas from the examples above and
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[1ad59f2] | 210 | read <filename>/usr/share/doc/tripwire/policyguide.txt</filename> for
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[cffe62a2] | 211 | additional information. <filename>twpol.txt</filename> is a good policy
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[1ad59f2] | 212 | file for learning about <application>Tripwire</application> as it will
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[cffe62a2] | 213 | note any changes to the file system and can even be used as an annoying
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| 214 | way of keeping track of changes for uninstallation of software.</para>
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| 215 |
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| 216 | <para>After your policy file has been edited to your satisfaction you may
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| 217 | begin the configuration steps (perform as the <systemitem
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[4d3e5f1] | 218 | class='username'>root</systemitem>) user:</para>
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[1503942] | 219 |
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| 220 | <screen role="root"><userinput>twadmin --create-polfile --site-keyfile /etc/tripwire/site.key \
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[dd362e5] | 221 | /etc/tripwire/twpol.txt &&
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[1503942] | 222 | tripwire --init</userinput></screen>
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| 223 |
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[fb3d3afd] | 224 | <para>Depending on your system and the contents of the policy file, the
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[cffe62a2] | 225 | initialization phase above can take a relatively long time.</para>
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[fb3d3afd] | 226 |
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[1503942] | 227 | </sect3>
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| 228 |
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| 229 | <sect3>
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| 230 | <title>Usage Information</title>
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| 231 |
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[cffe62a2] | 232 | <para><application>Tripwire</application> will identify file changes in
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| 233 | the critical system files specified in the policy file. Using
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| 234 | <application>Tripwire</application> while making frequent changes to
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| 235 | these directories will flag all these changes. It is most useful after a
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| 236 | system has reached a configuration that the user considers stable.</para>
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[fb3d3afd] | 237 |
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[cffe62a2] | 238 | <para>To use <application>Tripwire</application> after creating a policy
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| 239 | file to run a report, use the following command:</para>
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[1503942] | 240 |
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| 241 | <screen role="root"><userinput>tripwire --check > /etc/tripwire/report.txt</userinput></screen>
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| 242 |
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[cffe62a2] | 243 | <para>View the output to check the integrity of your files. An automatic
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| 244 | integrity report can be produced by using a cron facility to schedule the
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| 245 | runs.</para>
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[fb3d3afd] | 246 |
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[410e228b] | 247 | <para>Reports are stored in binary and, if desired, encrypted. View reports,
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[cffe62a2] | 248 | as the <systemitem class="username">root</systemitem> user, with:</para>
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[fb3d3afd] | 249 |
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[8b319a8c] | 250 | <screen role="root"><userinput>twprint --print-report -r /var/lib/tripwire/report/<replaceable><report-name.twr></replaceable></userinput></screen>
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[fb3d3afd] | 251 |
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[cffe62a2] | 252 | <para>After you run an integrity check, you should examine the
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| 253 | report (or email) and then modify the <application>Tripwire</application>
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| 254 | database to reflect the changed files on your system. This is so that
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| 255 | <application>Tripwire</application> will not continually notify you that
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| 256 | files you intentionally changed are a security violation. To do this you
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| 257 | must first <command>ls -l /var/lib/tripwire/report/</command> and note
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| 258 | the name of the newest file which starts with your system name as
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| 259 | presented by the command <userinput>uname -n</userinput>
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| 260 | and ends in <filename>.twr</filename>. These files were created
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| 261 | during report creation and the most current one is needed to update the
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| 262 | <application>Tripwire</application> database of your system. As the
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| 263 | <systemitem class='username'>root</systemitem> user, type in the
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| 264 | following command making the appropriate report name:</para>
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[fb3d3afd] | 265 |
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| 266 | <screen role="root"><userinput>tripwire --update --twrfile /var/lib/tripwire/report/<replaceable><report-name.twr></replaceable></userinput></screen>
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[1503942] | 267 |
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[4d3e5f1] | 268 | <para>You will be placed into <application>Vim</application> with a copy
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[1503942] | 269 | of the report in front of you. If all the changes were good, then just
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[4751980e] | 270 | type <command>:wq</command> and after entering your local key, the database
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[1503942] | 271 | will be updated. If there are files which you still want to be warned
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| 272 | about, remove the 'x' before the filename in the report and type
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[c9d91e8a] | 273 | <command>:wq</command>.</para>
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[1503942] | 274 |
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[f22f1ef3] | 275 | <!-- 10-12-2013 bad URL and no good URL found
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[7f5c97e] | 276 | <para>A good summary of tripwire operations can be found at
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[fdcbc8d] | 277 | <ulink url="http://va-holladays.no-ip.info:2200/tools/security-docs/tripwire-v1.0.pdf"/>.</para>
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[f22f1ef3] | 278 | -->
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[1503942] | 279 | </sect3>
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| 280 |
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| 281 | <sect3>
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| 282 | <title>Changing the Policy File</title>
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| 283 |
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| 284 | <para>If you are unhappy with your policy file and would like to modify
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| 285 | it or use a new one, modify the policy file and then execute the following
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[0bc6cf76] | 286 | commands as the <systemitem class='username'>root</systemitem> user:</para>
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[1503942] | 287 |
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| 288 | <screen role="root"><userinput>twadmin --create-polfile /etc/tripwire/twpol.txt &&
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| 289 | tripwire --init</userinput></screen>
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| 290 |
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| 291 | </sect3>
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| 292 |
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| 293 | </sect2>
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| 294 |
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| 295 | <sect2 role="content">
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| 296 | <title>Contents</title>
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| 297 |
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| 298 | <segmentedlist>
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| 299 | <segtitle>Installed Programs</segtitle>
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| 300 | <segtitle>Installed Libraries</segtitle>
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| 301 | <segtitle>Installed Directories</segtitle>
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| 302 |
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| 303 | <seglistitem>
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[fb3d3afd] | 304 | <seg>siggen, tripwire, twadmin, and twprint</seg>
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[1503942] | 305 | <seg>None</seg>
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[8b319a8c] | 306 | <seg>/etc/tripwire, /var/lib/tripwire,
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| 307 | and /usr/share/doc/tripwire-&tripwire-version;</seg>
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[1503942] | 308 | </seglistitem>
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| 309 | </segmentedlist>
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| 310 |
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| 311 | <variablelist>
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| 312 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 313 | <?dbfo list-presentation="list"?>
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| 314 | <?dbhtml list-presentation="table"?>
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| 315 |
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| 316 | <varlistentry id="siggen">
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| 317 | <term><command>siggen</command></term>
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| 318 | <listitem>
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| 319 | <para>is a signature gathering utility that displays
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| 320 | the hash function values for the specified files.</para>
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[2ee0a026] | 321 | <indexterm zone="tripwire siggen">
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[1503942] | 322 | <primary sortas="b-siggen">siggen</primary>
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| 323 | </indexterm>
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| 324 | </listitem>
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| 325 | </varlistentry>
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| 326 |
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[e5e7a1d] | 327 | <varlistentry id="tripwire-program">
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[1503942] | 328 | <term><command>tripwire</command></term>
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| 329 | <listitem>
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| 330 | <para>is the main file integrity checking program.</para>
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[2ee0a026] | 331 | <indexterm zone="tripwire tripwire">
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[1503942] | 332 | <primary sortas="b-tripwire">tripwire</primary>
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| 333 | </indexterm>
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| 334 | </listitem>
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| 335 | </varlistentry>
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| 336 |
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[e5e7a1d] | 337 | <varlistentry id="twadmin">
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[1503942] | 338 | <term><command>twadmin</command></term>
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| 339 | <listitem>
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| 340 | <para>administrative and utility tool used to perform
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| 341 | certain administrative functions related to
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| 342 | <application>Tripwire</application> files and configuration
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| 343 | options.</para>
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[2ee0a026] | 344 | <indexterm zone="tripwire twadmin">
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[1503942] | 345 | <primary sortas="b-twadmin">twadmin</primary>
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| 346 | </indexterm>
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| 347 | </listitem>
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| 348 | </varlistentry>
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| 349 |
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[e5e7a1d] | 350 | <varlistentry id="twprint">
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[1503942] | 351 | <term><command>twprint</command></term>
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| 352 | <listitem>
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| 353 | <para>prints <application>Tripwire</application>
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| 354 | database and report files in clear text format.</para>
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[2ee0a026] | 355 | <indexterm zone="tripwire twprint">
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[1503942] | 356 | <primary sortas="b-twprint">twprint</primary>
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| 357 | </indexterm>
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| 358 | </listitem>
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| 359 | </varlistentry>
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| 360 |
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| 361 | </variablelist>
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| 362 |
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| 363 | </sect2>
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[e40cb61] | 364 |
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[f45b1953] | 365 | </sect1>
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