man/systemd-random-seed.service.xml

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   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 <refentry id="systemd-random-seed.service" conditional='ENABLE_RANDOMSEED'>
   8
   9   <refentryinfo>
  10     <title>systemd-random-seed.service</title>
  11     <productname>systemd</productname>
  12
  13     <authorgroup>
  14       <author>
  15         <contrib>Developer</contrib>
  16         <firstname>Lennart</firstname>
  17         <surname>Poettering</surname>
  18         <email>lennart@poettering.net</email>
  19       </author>
  20     </authorgroup>
  21   </refentryinfo>
  22
  23   <refmeta>
  24     <refentrytitle>systemd-random-seed.service</refentrytitle>
  25     <manvolnum>8</manvolnum>
  26   </refmeta>
  27
  28   <refnamediv>
  29     <refname>systemd-random-seed.service</refname>
  30     <refname>systemd-random-seed</refname>
  31     <refpurpose>Load and save the system random seed at boot and shutdown</refpurpose>
  32   </refnamediv>
  33
  34   <refsynopsisdiv>
  35     <para><filename>systemd-random-seed.service</filename></para>
  36     <para><filename>/usr/lib/systemd/random-seed</filename></para>
  37   </refsynopsisdiv>
  38
  39   <refsect1>
  40     <title>Description</title>
  41
  42     <para><filename>systemd-random-seed.service</filename> is a
  43     service that restores the random seed of the system at early boot
  44     and saves it at shutdown. See
  45     <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  46     for details. Saving/restoring the random seed across boots
  47     increases the amount of available entropy early at boot. On disk
  48     the random seed is stored in
  49     <filename>/var/lib/systemd/random-seed</filename>.</para>
  50   </refsect1>
  51
  52   <refsect1>
  53     <title>See Also</title>
  54     <para>
  55       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  56       <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  57     </para>
  58   </refsect1>
  59
  60 </refentry>