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de31bbc6b1
The semantics were significantly changed inc779a44222("hostnamed: Fix the way that static and transient host names interact", Feb. 2014), but when the dbus api documentation was imported much later, it wasn't properly adjusted to describe those new semantics.34293dfafdwhich added systemd.hostname= also added new behaviour. Let's ove various bits and pieces around so that they are in more appropriate places. Drop recommendations to set the hostname for DHCP or mDNS purposes. Nowadays we expect tools that want to expose some different hostname to the outside to manage that internally without affecting visible state. Also drop mentions of DHCP or mDNS directly setting the hostname, since nowadays network management software is expected to (and does) go through hostnamed. Also, add a high-level description of semantics. It glosses over the details of handling of localhost-style names. Later commits will remove this special handling anyway.
83 lines
3.3 KiB
XML
83 lines
3.3 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
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<refentry id="systemd-hostnamed.service" conditional='ENABLE_HOSTNAMED'>
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<refentryinfo>
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<title>systemd-hostnamed.service</title>
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<productname>systemd</productname>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-hostnamed.service</refentrytitle>
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<manvolnum>8</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-hostnamed.service</refname>
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<refname>systemd-hostnamed</refname>
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<refpurpose>Daemon to control system hostname from programs</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>systemd-hostnamed.service</filename></para>
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<para><filename>/usr/lib/systemd/systemd-hostnamed</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><filename>systemd-hostnamed.service</filename> is a system service that may be used to change the
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system's hostname and related machine metadata from user programs. It is automatically activated on
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request and terminates itself when unused.</para>
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<para>It currently offers access to five variables:
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<itemizedlist>
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<listitem><para>The current hostname (Example: <literal>dhcp-192-168-47-11</literal>)</para>
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</listitem>
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<listitem><para>The static (configured) hostname (Example:
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<literal>lennarts-computer</literal>)</para></listitem>
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<listitem><para>The pretty hostname (Example: <literal>Lennart's Computer</literal>)</para>
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</listitem>
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<listitem><para>A suitable icon name for the local host (Example:
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<literal>computer-laptop</literal>)</para></listitem>
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<listitem><para>A chassis type (Example: <literal>tablet</literal>)</para>
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</listitem>
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</itemizedlist></para>
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<para>The static hostname is stored in <filename>/etc/hostname</filename>, see
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more
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information. The pretty hostname, chassis type, and icon name are stored in
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<filename>/etc/machine-info</filename>, see
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<citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
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<para>The tool
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<citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry> is a
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command line client to this service.</para>
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<para>See
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<citerefentry><refentrytitle>org.freedesktop.hostname1</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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and
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<citerefentry><refentrytitle>org.freedesktop.LogControl1</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for a description of the D-Bus API.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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