874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering This file is part of systemd.
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering Copyright 2014 Lennart Poettering
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering systemd is free software; you can redistribute it and/or modify it
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering under the terms of the GNU Lesser General Public License as published by
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering the Free Software Foundation; either version 2.1 of the License, or
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering (at your option) any later version.
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering systemd is distributed in the hope that it will be useful, but
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering WITHOUT ANY WARRANTY; without even the implied warranty of
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering Lesser General Public License for more details.
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering You should have received a copy of the GNU Lesser General Public License
874ff7bf4d6fe693542209f127d23cd89adc499bLennart Poettering along with systemd; If not, see <http://www.gnu.org/licenses/>.
be795898c0d2fa21e3389b89793dcd45c47f8b9fJosh Triplett<refentry id="timesyncd.conf" conditional='ENABLE_TIMESYNCD'
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek xmlns:xi="http://www.w3.org/2001/XInclude">
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <productname>systemd</productname>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <email>lennart@poettering.net</email>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <refentrytitle>timesyncd.conf</refentrytitle>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <refname>timesyncd.conf</refname>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <refname>timesyncd.conf.d</refname>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <refpurpose>Network Time Synchronization configuration files</refpurpose>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <refsynopsisdiv>
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen <para><filename>/etc/systemd/timesyncd.conf</filename></para>
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen <para><filename>/etc/systemd/timesyncd.conf.d/*.conf</filename></para>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <para><filename>/run/systemd/timesyncd.conf.d/*.conf</filename></para>
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen <para><filename>/usr/lib/systemd/timesyncd.conf.d/*.conf</filename></para>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek </refsynopsisdiv>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <para>These configuration files control NTP network time
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek synchronization.</para>
e93549ef29c4123d9ee45acb5815048390201e49Zbigniew Jędrzejewski-Szmek <xi:include href="standard-conf.xml" xpointer="main-conf" />
6c033c34967b6dffb6a4b295c43bd151105e4f1fLennart Poettering <para>The following settings are configured in the <literal>[Time]</literal> section:</para>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <variablelist class='network-directives'>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <term><varname>NTP=</varname></term>
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt <listitem><para>A space-separated list of NTP server host
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek names or IP addresses. During runtime this list is combined
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek with any per-interface NTP servers acquired from
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek systemd-timesyncd will contact all configured system or
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek per-interface servers in turn until one is found that
e26cb3b79abcf1dfe906c034108f526eb38a62c6Igor Vuk responds. This setting defaults to an empty
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <term><varname>FallbackNTP=</varname></term>
b938cb902c3b5bca807a94b277672c64d6767886Jan Engelhardt <listitem><para>A space-separated list of NTP server host
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek names or IP addresses to be used as the fallback NTP servers.
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek Any per-interface NTP servers obtained from
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek take precedence over this setting, as do any servers set via
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <varname>NTP=</varname> above. This setting is hence only used
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek if no other NTP server information is known. If this option is
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek not given, a compiled-in list of NTP servers is used
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <citerefentry><refentrytitle>systemd-timesyncd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>