man/timesyncd.conf.xml

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   9   Copyright 2014 Lennart Poettering
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  24
  25 <refentry id="timesyncd.conf" conditional='ENABLE_TIMESYNCD'
  26     xmlns:xi="http://www.w3.org/2001/XInclude">
  27   <refentryinfo>
  28     <title>timesyncd.conf</title>
  29     <productname>systemd</productname>
  30
  31     <authorgroup>
  32       <author>
  33         <contrib>Developer</contrib>
  34         <firstname>Lennart</firstname>
  35         <surname>Poettering</surname>
  36         <email>lennart@poettering.net</email>
  37       </author>
  38     </authorgroup>
  39   </refentryinfo>
  40
  41   <refmeta>
  42     <refentrytitle>timesyncd.conf</refentrytitle>
  43     <manvolnum>5</manvolnum>
  44   </refmeta>
  45
  46   <refnamediv>
  47     <refname>timesyncd.conf</refname>
  48     <refname>timesyncd.conf.d</refname>
  49     <refpurpose>Network Time Synchronization configuration files</refpurpose>
  50   </refnamediv>
  51
  52   <refsynopsisdiv>
  53     <para><filename>/etc/systemd/timesyncd.conf</filename></para>
  54     <para><filename>/etc/systemd/timesyncd.conf.d/*.conf</filename></para>
  55     <para><filename>/run/systemd/timesyncd.conf.d/*.conf</filename></para>
  56     <para><filename>/usr/lib/systemd/timesyncd.conf.d/*.conf</filename></para>
  57   </refsynopsisdiv>
  58
  59   <refsect1>
  60     <title>Description</title>
  61
  62     <para>These configuration files control NTP network time
  63     synchronization.</para>
  64
  65   </refsect1>
  66
  67   <xi:include href="standard-conf.xml" xpointer="confd" />
  68   <xi:include href="standard-conf.xml" xpointer="conf" />
  69
  70   <refsect1>
  71     <title>Options</title>
  72
  73     <variablelist class='network-directives'>
  74
  75       <varlistentry>
  76         <term><varname>NTP=</varname></term>
  77         <listitem><para>A space separated list of NTP servers host
  78         names or IP addresses. During runtime this list is combined
  79         with any per-interface NTP servers acquired from
  80         <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
  81         systemd-timesyncd will contact all configured system or
  82         per-interface servers in turn until one is found that
  83         responds. This setting defaults to the empty
  84         list.</para></listitem>
  85       </varlistentry>
  86
  87       <varlistentry>
  88         <term><varname>FallbackNTP=</varname></term>
  89         <listitem><para>A space separated list of NTP server host
  90         names or IP addresses to be used as the fallback NTP servers.
  91         Any per-interface NTP servers obtained from
  92         <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  93         take precedence over this setting, as do any servers set via
  94         <varname>NTP=</varname> above. This setting is hence only used
  95         if no other NTP server information is known. If this option is
  96         not given, a compiled-in list of NTP servers is used
  97         instead.</para></listitem>
  98       </varlistentry>
  99
 100     </variablelist>
 101   </refsect1>
 102
 103   <refsect1>
 104       <title>See Also</title>
 105       <para>
 106       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 107       <citerefentry><refentrytitle>systemd-timesyncd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 108       <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 109       </para>
 110   </refsect1>
 111
 112 </refentry>