man/systemd-random-seed.service.xml

   1 <?xml version="1.0"?>
   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   This file is part of systemd.
   8
   9   Copyright 2012 Lennart Poettering
  10 -->
  11 <refentry id="systemd-random-seed.service" conditional='ENABLE_RANDOMSEED'>
  12
  13   <refentryinfo>
  14     <title>systemd-random-seed.service</title>
  15     <productname>systemd</productname>
  16
  17     <authorgroup>
  18       <author>
  19         <contrib>Developer</contrib>
  20         <firstname>Lennart</firstname>
  21         <surname>Poettering</surname>
  22         <email>lennart@poettering.net</email>
  23       </author>
  24     </authorgroup>
  25   </refentryinfo>
  26
  27   <refmeta>
  28     <refentrytitle>systemd-random-seed.service</refentrytitle>
  29     <manvolnum>8</manvolnum>
  30   </refmeta>
  31
  32   <refnamediv>
  33     <refname>systemd-random-seed.service</refname>
  34     <refname>systemd-random-seed</refname>
  35     <refpurpose>Load and save the system random seed at boot and shutdown</refpurpose>
  36   </refnamediv>
  37
  38   <refsynopsisdiv>
  39     <para><filename>systemd-random-seed.service</filename></para>
  40     <para><filename>/usr/lib/systemd/random-seed</filename></para>
  41   </refsynopsisdiv>
  42
  43   <refsect1>
  44     <title>Description</title>
  45
  46     <para><filename>systemd-random-seed.service</filename> is a
  47     service that restores the random seed of the system at early boot
  48     and saves it at shutdown. See
  49     <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  50     for details. Saving/restoring the random seed across boots
  51     increases the amount of available entropy early at boot. On disk
  52     the random seed is stored in
  53     <filename>/var/lib/systemd/random-seed</filename>.</para>
  54   </refsect1>
  55
  56   <refsect1>
  57     <title>See Also</title>
  58     <para>
  59       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  60       <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  61     </para>
  62   </refsect1>
  63
  64 </refentry>