man/systemd-random-seed.service.xml

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   2 <!--*-nxml-*-->
   3 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
   4 <!--
   5   SPDX-License-Identifier: LGPL-2.1+
   6
   7   Copyright 2012 Lennart Poettering
   8 -->
   9 <refentry id="systemd-random-seed.service" conditional='ENABLE_RANDOMSEED'>
  10
  11   <refentryinfo>
  12     <title>systemd-random-seed.service</title>
  13     <productname>systemd</productname>
  14
  15     <authorgroup>
  16       <author>
  17         <contrib>Developer</contrib>
  18         <firstname>Lennart</firstname>
  19         <surname>Poettering</surname>
  20         <email>lennart@poettering.net</email>
  21       </author>
  22     </authorgroup>
  23   </refentryinfo>
  24
  25   <refmeta>
  26     <refentrytitle>systemd-random-seed.service</refentrytitle>
  27     <manvolnum>8</manvolnum>
  28   </refmeta>
  29
  30   <refnamediv>
  31     <refname>systemd-random-seed.service</refname>
  32     <refname>systemd-random-seed</refname>
  33     <refpurpose>Load and save the system random seed at boot and shutdown</refpurpose>
  34   </refnamediv>
  35
  36   <refsynopsisdiv>
  37     <para><filename>systemd-random-seed.service</filename></para>
  38     <para><filename>/usr/lib/systemd/random-seed</filename></para>
  39   </refsynopsisdiv>
  40
  41   <refsect1>
  42     <title>Description</title>
  43
  44     <para><filename>systemd-random-seed.service</filename> is a
  45     service that restores the random seed of the system at early boot
  46     and saves it at shutdown. See
  47     <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  48     for details. Saving/restoring the random seed across boots
  49     increases the amount of available entropy early at boot. On disk
  50     the random seed is stored in
  51     <filename>/var/lib/systemd/random-seed</filename>.</para>
  52   </refsect1>
  53
  54   <refsect1>
  55     <title>See Also</title>
  56     <para>
  57       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  58       <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  59     </para>
  60   </refsect1>
  61
  62 </refentry>