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 <!-- SPDX-License-Identifier: LGPL-2.1+ -->
   5 <refentry id="systemd-random-seed.service" conditional='ENABLE_RANDOMSEED'>
   6
   7   <refentryinfo>
   8     <title>systemd-random-seed.service</title>
   9     <productname>systemd</productname>
  10   </refentryinfo>
  11
  12   <refmeta>
  13     <refentrytitle>systemd-random-seed.service</refentrytitle>
  14     <manvolnum>8</manvolnum>
  15   </refmeta>
  16
  17   <refnamediv>
  18     <refname>systemd-random-seed.service</refname>
  19     <refname>systemd-random-seed</refname>
  20     <refpurpose>Load and save the system random seed at boot and shutdown</refpurpose>
  21   </refnamediv>
  22
  23   <refsynopsisdiv>
  24     <para><filename>systemd-random-seed.service</filename></para>
  25     <para><filename>/usr/lib/systemd/random-seed</filename></para>
  26   </refsynopsisdiv>
  27
  28   <refsect1>
  29     <title>Description</title>
  30
  31     <para><filename>systemd-random-seed.service</filename> is a
  32     service that restores the random seed of the system at early boot
  33     and saves it at shutdown. See
  34     <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  35     for details. Saving/restoring the random seed across boots
  36     increases the amount of available entropy early at boot. On disk
  37     the random seed is stored in
  38     <filename>/var/lib/systemd/random-seed</filename>.</para>
  39   </refsect1>
  40
  41   <refsect1>
  42     <title>See Also</title>
  43     <para>
  44       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  45       <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  46     </para>
  47   </refsect1>
  48
  49 </refentry>