source: postlfs/security/haveged.xml@ 952c2494

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;

  <!ENTITY haveged-download-http "&sourceforge-dl;/haveged/haveged-&haveged-version;.tar.gz">
  <!ENTITY haveged-download-ftp  " ">
  <!ENTITY haveged-md5sum        "fb1d8b3dcbb9d06b30eccd8aa500fd31">
  <!ENTITY haveged-size          "484 KB">
  <!ENTITY haveged-buildsize     "20 MB (with tests)">
  <!ENTITY haveged-time          "0.1 SBU (with tests)">
]>

<sect1 id="haveged" xreflabel="Haveged-&haveged-version;">
  <?dbhtml filename="haveged.html"?>

  <sect1info>
    <othername>$LastChangedBy$</othername>
    <date>$Date$</date>
  </sect1info>

  <title>Haveged-&haveged-version;</title>

  <indexterm zone="haveged">
    <primary sortas="a-Haveged">Haveged</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to Haveged</title>

    <para>
      The <application>Haveged</application> package contains a daemon
      that generates an unpredictable stream of random numbers
      and feeds the /dev/random device.
    </para>

    &lfs82_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Download (HTTP): <ulink url="&haveged-download-http;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download (FTP): <ulink url="&haveged-download-ftp;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download MD5 sum: &haveged-md5sum;
        </para>
      </listitem>
      <listitem>
        <para>
          Download size: &haveged-size;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated disk space required: &haveged-buildsize;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated build time: &haveged-time;
        </para>
      </listitem>
    </itemizedlist>

    <para condition="html" role="usernotes">User Notes:
      <ulink url="&blfs-wiki;/haveged"/>
    </para>
  </sect2>

  <sect2 role="installation">
    <title>Installation of Haveged</title>

    <para>Install <application>Haveged</application> by running the following
    commands:</para>

<screen><userinput>./configure --prefix=/usr &amp;&amp;
make</userinput></screen>

    <para>
      To test the results, issue: <command>make check</command>.
    </para>

    <para>
      Now, as the <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>make install &amp;&amp;
mkdir -pv    /usr/share/doc/haveged-&haveged-version; &amp;&amp;
cp -v README /usr/share/doc/haveged-&haveged-version;</userinput></screen>

  </sect2>

  <sect2 role="configuration">
    <title>Configuring haveged</title>

    <sect3  id="haveged-init">
      <title><phrase revision="sysv">Boot Script</phrase>
             <phrase revision="systemd">Systemd Unit</phrase></title>

      <para revision="sysv">
        If you want the <application>Haveged</application> daemon to
        start automatically when the system is booted, install the
        <filename>/etc/rc.d/init.d/haveged</filename> init script included
        in the <xref linkend="bootscripts"/> package (as the
        <systemitem class="username">root</systemitem> user):
      </para>

      <para revision="systemd">
        If you want the <application>Haveged</application> daemon to
        start automatically when the system is booted, install the
        <filename>haveged.service</filename> unit included in the
        <xref linkend="systemd-units"/> package (as the
        <systemitem class="username">root</systemitem> user):
      </para>

      <indexterm zone="haveged haveged-init">
        <primary sortas="f-haveged">haveged</primary>
      </indexterm>

<screen role="root"><userinput>make install-haveged</userinput></screen>

    </sect3>

  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Programs</segtitle>
      <segtitle>Installed Libraries</segtitle>
      <segtitle>Installed Directory</segtitle>

      <seglistitem>
        <seg>
          haveged
        </seg>
        <seg>
          libhavege.so
        </seg>
        <seg>
          /usr/include/haveged
        </seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="haveged-prog">
        <term><command>haveged</command></term>
        <listitem>
          <para>
            is a daemon that generates an unpredictable stream of random
            numbers harvested from the indirect effects of hardware events
            based on hidden processor states (caches, branch  predictors, memory
            translation tables, etc).
          </para>
          <indexterm zone="haveged haveged-prog">
            <primary sortas="b-haveged-prog">haveged</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>