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diff --git a/man/hostnamectl.xml b/man/hostnamectl.xml new file mode 100644 index 0000000..6933c68 --- /dev/null +++ b/man/hostnamectl.xml @@ -0,0 +1,211 @@ +<?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" [ +<!ENTITY % entities SYSTEM "custom-entities.ent" > +%entities; +]> +<!-- SPDX-License-Identifier: LGPL-2.1-or-later --> + +<refentry id="hostnamectl" conditional='ENABLE_HOSTNAMED' + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>hostnamectl</title> + <productname>systemd</productname> + </refentryinfo> + + <refmeta> + <refentrytitle>hostnamectl</refentrytitle> + <manvolnum>1</manvolnum> + </refmeta> + + <refnamediv> + <refname>hostnamectl</refname> + <refpurpose>Control the system hostname</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>hostnamectl</command> + <arg choice="opt" rep="repeat">OPTIONS</arg> + <arg choice="req">COMMAND</arg> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>hostnamectl</command> may be used to query and change the system hostname and related + settings.</para> + + <para><citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + and this tool distinguish three different hostnames: the high-level "pretty" hostname which might include + all kinds of special characters (e.g. "Lennart's Laptop"), the "static" hostname which is the + user-configured hostname (e.g. "lennarts-laptop"), and the transient hostname which is a fallback value + received from network configuration (e.g. "node12345678"). If a static hostname is set to a valid value, + then the transient hostname is not used.</para> + + <para>Note that the pretty hostname has little restrictions on the characters and length used, while the static and + transient hostnames are limited to the usually accepted characters of Internet domain names, and 64 characters at + maximum (the latter being a Linux limitation).</para> + + <para>Use + <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> to + initialize the system hostname for mounted (but not booted) system images.</para> + </refsect1> + + <refsect1> + <title>Commands</title> + + <para>The following commands are understood:</para> + + <variablelist> + <varlistentry> + <term><command>status</command></term> + + <listitem><para>Show system hostname and related information. If no command is specified, + this is the implied default.</para></listitem> + </varlistentry> + + <varlistentry> + <term><command>hostname</command> [<replaceable>NAME</replaceable>]</term> + + <listitem><para>If no argument is given, print the system hostname. If an + optional argument <replaceable>NAME</replaceable> is provided then the command changes the + system hostname to <replaceable>NAME</replaceable>. By default, this will alter the + pretty, the static, and the transient hostname alike; however, if one or more of <option>--static</option>, + <option>--transient</option>, <option>--pretty</option> are used, only the selected hostnames are changed. If + the pretty hostname is being set, and static or transient are being set as well, the specified hostname will be + simplified in regards to the character set used before the latter are updated. This is done by removing special + characters and spaces. This ensures that the pretty and the static hostname are always closely related while + still following the validity rules of the specific name. This simplification of the hostname string is not done + if only the transient and/or static hostnames are set, and the pretty hostname is left untouched.</para> + + <para>The static and transient hostnames must each be either a single DNS label (a string composed of + 7-bit ASCII lower-case characters and no spaces or dots, limited to the format allowed for DNS domain + name labels), or a sequence of such labels separated by single dots that forms a valid DNS FQDN. The + hostname must be at most 64 characters, which is a Linux limitation (DNS allows longer names).</para></listitem> + </varlistentry> + + <varlistentry> + <term><command>icon-name</command> [<replaceable>NAME</replaceable>]</term> + + <listitem><para>If no argument is given, print the icon name of the system. If an + optional argument <replaceable>NAME</replaceable> is provided then the command changes the + icon name to <replaceable>NAME</replaceable>. The icon name is used by some + graphical applications to visualize this host. The icon name + should follow the <ulink + url="https://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html">Icon + Naming Specification</ulink>.</para></listitem> + </varlistentry> + + <varlistentry> + <term><command>chassis</command> [<replaceable>TYPE</replaceable>]</term> + + <listitem><para>If no argument is given, print the chassis type. If an + optional argument <replaceable>TYPE</replaceable> is provided then the command changes the + chassis type to <replaceable>TYPE</replaceable>. The chassis type is used by + some graphical applications to visualize the host or alter user interaction. + Currently, the following chassis types are defined: + <literal>desktop</literal>, + <literal>laptop</literal>, + <literal>convertible</literal>, + <literal>server</literal>, + <literal>tablet</literal>, + <literal>handset</literal>, + <literal>watch</literal>, + <literal>embedded</literal>, + as well as the special chassis types + <literal>vm</literal> and + <literal>container</literal> for virtualized systems that lack + an immediate physical chassis.</para> + </listitem> + </varlistentry> + + <varlistentry> + <term><command>deployment</command> [<replaceable>ENVIRONMENT</replaceable>]</term> + + <listitem><para>If no argument is given, print the deployment environment. If an + optional argument <replaceable>ENVIRONMENT</replaceable> is provided then the command changes the + deployment environment to <replaceable>ENVIRONMENT</replaceable>. + Argument <replaceable>ENVIRONMENT</replaceable> + must be a single word without any control characters. One of the following is suggested: + <literal>development</literal>, + <literal>integration</literal>, + <literal>staging</literal>, + <literal>production</literal>. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term><command>location</command> [<replaceable>LOCATION</replaceable>]</term> + + <listitem><para>If no argument is given, print the location string for the system. If an + optional argument <replaceable>LOCATION</replaceable> is provided then the command changes the + location string for the system to <replaceable>LOCATION</replaceable>. + Argument <replaceable>LOCATION</replaceable> should be a + human-friendly, free-form string describing the physical + location of the system, if it is known and applicable. This + may be as generic as <literal>Berlin, Germany</literal> or as + specific as <literal>Left Rack, 2nd Shelf</literal>.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Options</title> + + <para>The following options are understood:</para> + + <variablelist> + <varlistentry> + <term><option>--no-ask-password</option></term> + + <listitem><para>Do not query the user for authentication for + privileged operations.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--static</option></term> + <term><option>--transient</option></term> + <term><option>--pretty</option></term> + + <listitem><para>If <command>status</command> is invoked (or no explicit command is given) and one of these + switches is specified, <command>hostnamectl</command> will print out just this selected hostname.</para> + + <para>If used with <command>set-hostname</command>, only the selected hostnames will be updated. When more + than one of these switches are specified, all the specified hostnames will be updated. </para></listitem> + </varlistentry> + + <xi:include href="user-system-options.xml" xpointer="host" /> + <xi:include href="user-system-options.xml" xpointer="machine" /> + + <xi:include href="standard-options.xml" xpointer="help" /> + <xi:include href="standard-options.xml" xpointer="version" /> + <xi:include href="standard-options.xml" xpointer="json" /> + </variablelist> + </refsect1> + + <refsect1> + <title>Exit status</title> + + <para>On success, 0 is returned, a non-zero failure code + otherwise.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |