mirror of
https://github.com/Zeckmathederg/glfs.git
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9623b6e8ca
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@4195 af4574ff-66df-0310-9fd7-8a98e5e911e0
184 lines
6.6 KiB
XML
184 lines
6.6 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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<!ENTITY cracklib-download-http "http://www.crypticide.com/users/alecm/security/cracklib,&cracklib-version;.tar.gz">
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<!ENTITY cracklib-download-ftp "ftp://ftp.cerias.purdue.edu/pub/tools/unix/libs/cracklib/cracklib.&cracklib-version;.tar.gz">
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<!ENTITY cracklib-http-md5sum "0c84ad7413d9dd3e5c2eaa5f97d53c4a">
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<!ENTITY cracklib-ftp-md5sum "7f810e310c7f2df33d1eaa2b41ab2435">
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<!ENTITY cracklib-size "21 KB">
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<!ENTITY cracklib-buildsize "21.8 MB">
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<!ENTITY cracklib-time "0.05 SBU">
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<!ENTITY crackdict-size "15.6 MB">
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<!ENTITY alldict-size "466 KB">
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]>
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<sect1 id="cracklib" xreflabel="cracklib-&cracklib-version;">
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<?dbhtml filename="cracklib.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>Cracklib-&cracklib-version;</title>
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<indexterm zone="cracklib">
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<primary sortas="a-Cracklib">Cracklib</primary>
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</indexterm>
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<sect2 role="package">
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<title>Introduction to Cracklib</title>
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<para>The <application>cracklib</application> package contains a
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library used to enforce strong passwords by comparing user selected
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passwords to words in a chosen wordlist.</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="&cracklib-download-http;"/></para>
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</listitem>
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<listitem>
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<para>Download (FTP): <ulink url="&cracklib-download-ftp;"/></para>
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</listitem>
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<listitem>
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<para>Download MD5 sum (HTTP): &cracklib-http-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download MD5 sum (FTP): &cracklib-ftp-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download size: &cracklib-size;</para>
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</listitem>
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<listitem>
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<para>Estimated disk space required: &cracklib-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &cracklib-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: <ulink
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url="&patch-root;/cracklib,&cracklib-version;-blfs-1.patch"/></para>
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</listitem>
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<listitem>
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<para>Recommended Patch: <ulink
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url="&patch-root;/cracklib,&cracklib-version;-heimdal-1.patch"/></para>
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</listitem>
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</itemizedlist>
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<para>You will also need to download a wordlist for use with
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<application>cracklib</application>. There are two wordlists
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to choose from at the following location. Use the
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<filename>cracklib</filename> word list for good security, or
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opt for the <filename>allwords</filename> word list for
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lightweight machines short on RAM. You can of course choose
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any other word list that you have at your disposal.</para>
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<itemizedlist spacing='compact'>
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<listitem>
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<para>cracklib (&crackdict-size;) at <ulink
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url="http://www.cotse.com/tools/wordlists.htm"/></para>
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</listitem>
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<listitem>
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<para>allwords (&alldict-size;) at <ulink
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url="http://www.cotse.com/tools/wordlists.htm"/></para>
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</listitem>
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</itemizedlist>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Cracklib</title>
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<para>First, as the <systemitem class="username">root</systemitem>
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user, install the chosen word list for
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<application>cracklib</application>:</para>
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<screen role="root"><userinput>install -v -d -m755 /usr/share/dict &&
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install -v -m644 ../<replaceable>[wordlist]</replaceable> /usr/share/dict &&
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ln -v -sf <replaceable>[wordlist]</replaceable> /usr/share/dict/words &&
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echo $(hostname) >> /usr/share/dict/extra.words</userinput></screen>
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<para>The wordlist is linked to <filename>/usr/share/dict/words</filename>
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as historically, <filename>words</filename> is the primary wordlist in the
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<filename class="directory">/usr/share/dict</filename> directory.
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Additionally, the value of <command>hostname</command> is echoed to a file
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called <filename>extra.words</filename>. This extra file is intended to be
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a site specific list which includes easy to guess passwords such as company
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or department names, user's names, product names, computer names, domain
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names, etc.</para>
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<para>Now apply the BLFS patch:</para>
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<screen><userinput>patch -Np1 -i ../cracklib,&cracklib-version;-blfs-1.patch</userinput></screen>
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<para>If necessary, apply the <application>Heimdal</application>
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patch:</para>
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<screen><userinput>cp -R cracklib cracklib_krb5 &&
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patch -Np1 -i ../cracklib,&cracklib-version;-heimdal-1.patch</userinput></screen>
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<para>Finally, as the <systemitem class="username">root</systemitem>
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user, build and install the package:</para>
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<screen role="root"><userinput>make install &&
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rm -v /lib/libcrack.so &&
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ln -v -sf ../../lib/libcrack.so.2.7 /usr/lib/libcrack.so</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>rm -v /lib/libcrack.so; ln -v -sf ...
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/usr/lib/libcrack.so</command>: These two commands move the
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<filename class='symlink'>libcrack.so</filename>
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symlink from <filename class='directory'>/lib</filename> to
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<filename class='directory'>/usr/lib</filename>.</para>
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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 Directory</segtitle>
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<seglistitem>
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<seg>create-cracklib-dict, mkdict, and packer</seg>
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<seg>libcrack.so and optionally, libcrack_krb5.so</seg>
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<seg>/usr/share/dict</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="libcrack">
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<term><filename class='libraryfile'>libcrack.so</filename></term>
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<listitem>
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<para>provide a fast dictionary lookup method for strong
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password enforcement.</para>
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<indexterm zone="cracklib libcrack">
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<primary sortas="c-libcrack">libcrack.so</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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