[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 cracklib-download-http "http://www.crypticide.com/users/alecm/security/cracklib,&cracklib-version;.tar.gz">
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| 8 | <!ENTITY cracklib-download-ftp "ftp://ftp.cerias.purdue.edu/pub/tools/unix/libs/cracklib/cracklib.&cracklib-version;.tar.gz">
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| 9 | <!ENTITY cracklib-size "21 KB">
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| 10 | <!ENTITY cracklib-buildsize "17 MB">
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| 11 | <!ENTITY cracklib-time "0.10 SBU">
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| 12 | <!ENTITY crackdict-size "15.6MB">
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| 13 | <!ENTITY alldict-size "466KB">
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| 14 | ]>
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| 15 |
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[fa48bf3] | 16 | <sect1 id="cracklib" xreflabel="cracklib-&cracklib-version;">
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[bae6e15] | 17 | <?dbhtml filename="cracklib.html"?>
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[fa48bf3] | 18 | <title>cracklib-&cracklib-version;</title>
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| 19 |
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[b4b71892] | 20 |
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| 21 | <sect2>
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| 22 | <title>Introduction to <application>cracklib</application></title>
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| 23 |
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| 24 | <para>The cracklib package contains a library used to enforce strong passwords
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| 25 | by comparing user selected passwords to words in a chosen wordlist.</para>
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| 26 |
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| 27 | <sect3><title>Package information</title>
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| 28 | <itemizedlist spacing='compact'>
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| 29 | <listitem><para>Download (HTTP): <ulink
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| 30 | url="&cracklib-download-http;"/></para></listitem>
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| 31 | <listitem><para>Download (FTP): <ulink
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| 32 | url="&cracklib-download-ftp;"/></para></listitem>
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| 33 | <listitem><para>Download size: &cracklib-size;</para></listitem>
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| 34 | <listitem><para>Estimated Disk space required (with cracklib wordlist):
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| 35 | &cracklib-buildsize;</para></listitem>
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| 36 | <listitem><para>Estimated build time:
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| 37 | &cracklib-time;</para></listitem></itemizedlist>
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| 38 | </sect3>
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| 39 |
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| 40 | <sect3><title>Additional downloads</title>
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| 41 | <itemizedlist spacing='compact'>
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| 42 | <listitem><para>Required patch: <ulink
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| 43 | url="&patch-root;/cracklib,&cracklib-version;-blfs-1.patch"/></para></listitem>
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| 44 | <listitem><para>Recommended patch: <ulink
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| 45 | url="&patch-root;/cracklib,&cracklib-version;-heimdal-1.patch"/></para></listitem>
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| 46 | </itemizedlist>
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| 47 |
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| 48 | <para>You will also need to download a wordlist for use with cracklib. There
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| 49 | are two wordlists to choose from at the following location. Use the
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| 50 | <filename>cracklib</filename> word list for good security, or opt for the
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| 51 | <filename>allwords</filename> word list for lightweight machines short on
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| 52 | <acronym>RAM</acronym>. You can of course choose any other word list that you
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| 53 | have at your disposal.</para>
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| 54 |
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| 55 | <para>cracklib (&crackdict-size;): <ulink url="http://www.cotse.com/wordlists/cracklib"/></para>
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| 56 | <para>allwords (&alldict-size;): <ulink url="http://www.cotse.com/wordlists/allwords"/></para>
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| 57 |
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| 58 | </sect3>
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| 59 |
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| 60 | </sect2>
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| 61 |
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| 62 | <sect2>
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| 63 | <title>Installation of <application>cracklib</application></title>
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| 64 |
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| 65 | <para>First, we need to install the chosen word list for cracklib:</para>
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| 66 |
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| 67 | <screen><userinput><command>install -d -m755 /usr/share/dict &&
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| 68 | install -m644 <replaceable>[wordlist]</replaceable> /usr/share/dict &&
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| 69 | ln -sf <replaceable>[wordlist]</replaceable> /usr/share/dict/words &&
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| 70 | echo $(hostname) >> /usr/share/dict/extra.words</command></userinput></screen>
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| 71 |
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[4f65b2f] | 72 | <para>The wordlist is linked to <filename>/usr/share/dict/words</filename> as
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| 73 | historically, <filename>words</filename> is the primary wordlist in the
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| 74 | <filename class="directory">/usr/share/dict</filename> directory. We also echo
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| 75 | the value of hostname to a file called <filename>extra.words</filename>. This
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| 76 | extra file is intended to be a site specific list which includes easy to guess
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| 77 | passwords such as company or department names, user's names, product
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| 78 | names, computer names, domain names, etc.</para>
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| 79 |
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| 80 | <para>Now apply the BLFS patch:</para>
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[b4b71892] | 81 |
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| 82 | <screen><userinput><command>patch -Np1 -i ../cracklib,&cracklib-version;-blfs-1.patch</command></userinput></screen>
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| 83 |
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| 84 | <para>If necessary, apply the heimdal patch:</para>
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| 85 |
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| 86 | <screen><userinput><command>cp -R cracklib cracklib_krb5 &&
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| 87 | patch -Np1 -i ../cracklib,&cracklib-version;-heimdal-1.patch</command></userinput></screen>
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| 88 |
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| 89 | <para>Finally install the package:</para>
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| 90 | <screen><userinput><command>make install</command></userinput></screen>
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| 91 |
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| 92 | </sect2>
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| 93 |
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| 94 | <sect2>
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| 95 | <title>Contents</title>
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| 96 |
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| 97 | <para>The <application>cracklib</application> package
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| 98 | contains the <filename class="libraryfile">libcrack</filename>
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| 99 | library.</para>
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| 100 |
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| 101 | </sect2>
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| 102 |
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| 103 | <sect2><title>Description</title>
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| 104 |
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| 105 | <sect3><title>libcrack library</title>
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| 106 | <para>The <filename class="libraryfile">libcrack</filename> library
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| 107 | provides a fast dictionary lookup method for strong password
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| 108 | enforcement.</para></sect3>
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| 109 |
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| 110 | </sect2>
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[fa48bf3] | 111 |
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| 112 | </sect1>
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