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<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
<refentry id="systemd-hostnamed.service" conditional='ENABLE_HOSTNAMED'>
<refentryinfo>
<title>systemd-hostnamed.service</title>
<productname>systemd</productname>
</refentryinfo>
<refmeta>
<refentrytitle>systemd-hostnamed.service</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-hostnamed.service</refname>
<refname>systemd-hostnamed</refname>
<refpurpose>Daemon to control system hostname from programs</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>systemd-hostnamed.service</filename></para>
<para><filename>/usr/lib/systemd/systemd-hostnamed</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><filename>systemd-hostnamed.service</filename> is a system service that may be used to change the
system's hostname and related machine metadata from user programs. It is automatically activated on
request and terminates itself when unused.</para>
<para>It currently offers access to five variables:
<itemizedlist>
<listitem><para>The current hostname (Example: <literal>dhcp-192-168-47-11</literal>)</para>
</listitem>
<listitem><para>The static (configured) hostname (Example:
<literal>lennarts-computer</literal>)</para></listitem>
<listitem><para>The pretty hostname (Example: <literal>Lennart's Computer</literal>)</para>
</listitem>
<listitem><para>A suitable icon name for the local host (Example:
<literal>computer-laptop</literal>)</para></listitem>
<listitem><para>A chassis type (Example: <literal>tablet</literal>)</para>
</listitem>
</itemizedlist></para>
<para>The static hostname is stored in <filename>/etc/hostname</filename>, see
<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more
information. The pretty hostname, chassis type, and icon name are stored in
<filename>/etc/machine-info</filename>, see
<citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
<para>The tool
<citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry> is a
command line client to this service.</para>
<para>See
<citerefentry><refentrytitle>org.freedesktop.hostname1</refentrytitle><manvolnum>5</manvolnum></citerefentry>
and
<citerefentry><refentrytitle>org.freedesktop.LogControl1</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for a description of the D-Bus API.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para><simplelist type="inline">
<member><citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
<member><citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry></member>
<member><citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry></member>
<member><citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
<member><citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry></member>
</simplelist></para>
</refsect1>
</refentry>
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