man/timesyncd.conf.xml

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  11   Copyright 2014 Lennart Poettering
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  26
  27 <refentry id="timesyncd.conf" conditional='ENABLE_TIMESYNCD'
  28     xmlns:xi="http://www.w3.org/2001/XInclude">
  29   <refentryinfo>
  30     <title>timesyncd.conf</title>
  31     <productname>systemd</productname>
  32
  33     <authorgroup>
  34       <author>
  35         <contrib>Developer</contrib>
  36         <firstname>Lennart</firstname>
  37         <surname>Poettering</surname>
  38         <email>lennart@poettering.net</email>
  39       </author>
  40     </authorgroup>
  41   </refentryinfo>
  42
  43   <refmeta>
  44     <refentrytitle>timesyncd.conf</refentrytitle>
  45     <manvolnum>5</manvolnum>
  46   </refmeta>
  47
  48   <refnamediv>
  49     <refname>timesyncd.conf</refname>
  50     <refname>timesyncd.conf.d</refname>
  51     <refpurpose>Network Time Synchronization configuration files</refpurpose>
  52   </refnamediv>
  53
  54   <refsynopsisdiv>
  55     <para><filename>&pkgsysconfdir;/timesyncd.conf</filename></para>
  56     <para><filename>&pkgsysconfdir;/timesyncd.conf.d/*.conf</filename></para>
  57     <para><filename>/run/systemd/timesyncd.conf.d/*.conf</filename></para>
  58     <para><filename>&rootlibexecdir;/timesyncd.conf.d/*.conf</filename></para>
  59   </refsynopsisdiv>
  60
  61   <refsect1>
  62     <title>Description</title>
  63
  64     <para>These configuration files control NTP network time
  65     synchronization.</para>
  66
  67   </refsect1>
  68
  69   <xi:include href="standard-conf.xml" xpointer="main-conf" />
  70
  71   <refsect1>
  72     <title>Options</title>
  73
  74     <variablelist class='network-directives'>
  75
  76       <varlistentry>
  77         <term><varname>NTP=</varname></term>
  78         <listitem><para>A space separated list of NTP server host
  79         names or IP addresses. During runtime this list is combined
  80         with any per-interface NTP servers acquired from
  81         <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
  82         systemd-timesyncd will contact all configured system or
  83         per-interface servers in turn until one is found that
  84         responds. This setting defaults to an empty
  85         list.</para></listitem>
  86       </varlistentry>
  87
  88       <varlistentry>
  89         <term><varname>FallbackNTP=</varname></term>
  90         <listitem><para>A space separated list of NTP server host
  91         names or IP addresses to be used as the fallback NTP servers.
  92         Any per-interface NTP servers obtained from
  93         <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  94         take precedence over this setting, as do any servers set via
  95         <varname>NTP=</varname> above. This setting is hence only used
  96         if no other NTP server information is known. If this option is
  97         not given, a compiled-in list of NTP servers is used
  98         instead.</para></listitem>
  99       </varlistentry>
 100
 101     </variablelist>
 102   </refsect1>
 103
 104   <refsect1>
 105       <title>See Also</title>
 106       <para>
 107       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 108       <citerefentry><refentrytitle>systemd-timesyncd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 109       <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 110       </para>
 111   </refsect1>
 112
 113 </refentry>