systemd/man/systemd-hostnamed.service.xml

<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
  "http://www.oasis-open.org/docbook/xml/4.2/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>