man/systemd-hostnamed.service.xml

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   2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   3   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
   4 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
   5
   6 <refentry id="systemd-hostnamed.service" conditional='ENABLE_HOSTNAMED'>
   7
   8   <refentryinfo>
   9     <title>systemd-hostnamed.service</title>
  10     <productname>systemd</productname>
  11   </refentryinfo>
  12
  13   <refmeta>
  14     <refentrytitle>systemd-hostnamed.service</refentrytitle>
  15     <manvolnum>8</manvolnum>
  16   </refmeta>
  17
  18   <refnamediv>
  19     <refname>systemd-hostnamed.service</refname>
  20     <refname>systemd-hostnamed</refname>
  21     <refpurpose>Daemon to control system hostname from programs</refpurpose>
  22   </refnamediv>
  23
  24   <refsynopsisdiv>
  25     <para><filename>systemd-hostnamed.service</filename></para>
  26     <para><filename>/usr/lib/systemd/systemd-hostnamed</filename></para>
  27   </refsynopsisdiv>
  28
  29   <refsect1>
  30     <title>Description</title>
  31
  32     <para><filename>systemd-hostnamed.service</filename> is a system service that may be used to change the
  33     system's hostname and related machine metadata from user programs. It is automatically activated on
  34     request and terminates itself when unused.</para>
  35
  36     <para>It currently offers access to five variables:
  37     <itemizedlist>
  38       <listitem><para>The current hostname (Example: <literal>dhcp-192-168-47-11</literal>)</para>
  39       </listitem>
  40
  41       <listitem><para>The static (configured) hostname (Example:
  42       <literal>lennarts-computer</literal>)</para></listitem>
  43
  44       <listitem><para>The pretty hostname (Example: <literal>Lennart's Computer</literal>)</para>
  45       </listitem>
  46
  47       <listitem><para>A suitable icon name for the local host (Example:
  48       <literal>computer-laptop</literal>)</para></listitem>
  49
  50       <listitem><para>A chassis type (Example: <literal>tablet</literal>)</para>
  51       </listitem>
  52     </itemizedlist></para>
  53
  54     <para>The static hostname is stored in <filename>/etc/hostname</filename>, see
  55     <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more
  56     information. The pretty hostname, chassis type, and icon name are stored in
  57     <filename>/etc/machine-info</filename>, see
  58     <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
  59
  60     <para>The tool
  61     <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry> is a
  62     command line client to this service.</para>
  63
  64     <para>See
  65     <citerefentry><refentrytitle>org.freedesktop.hostname1</refentrytitle><manvolnum>5</manvolnum></citerefentry>
  66     and
  67     <citerefentry><refentrytitle>org.freedesktop.LogControl1</refentrytitle><manvolnum>5</manvolnum></citerefentry>
  68     for a description of the D-Bus API.</para>
  69   </refsect1>
  70
  71   <refsect1>
  72     <title>See Also</title>
  73     <para>
  74       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  75       <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
  76       <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
  77       <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  78       <citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>
  79     </para>
  80   </refsect1>
  81
  82 </refentry>