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1 | <?xml version='1.0'?> <!--*-nxml-*--> |
2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | |
798d3a52 | 3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> |
dbc4fbae LP |
4 | |
5 | <!-- | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2012 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | --> | |
23 | ||
dfdebb1b | 24 | <refentry id="hostnamectl" conditional='ENABLE_HOSTNAMED' |
798d3a52 ZJS |
25 | xmlns:xi="http://www.w3.org/2001/XInclude"> |
26 | ||
27 | <refentryinfo> | |
28 | <title>hostnamectl</title> | |
29 | <productname>systemd</productname> | |
30 | ||
31 | <authorgroup> | |
32 | <author> | |
33 | <contrib>Developer</contrib> | |
34 | <firstname>Lennart</firstname> | |
35 | <surname>Poettering</surname> | |
36 | <email>lennart@poettering.net</email> | |
37 | </author> | |
38 | </authorgroup> | |
39 | </refentryinfo> | |
40 | ||
41 | <refmeta> | |
42 | <refentrytitle>hostnamectl</refentrytitle> | |
43 | <manvolnum>1</manvolnum> | |
44 | </refmeta> | |
45 | ||
46 | <refnamediv> | |
47 | <refname>hostnamectl</refname> | |
48 | <refpurpose>Control the system hostname</refpurpose> | |
49 | </refnamediv> | |
50 | ||
51 | <refsynopsisdiv> | |
52 | <cmdsynopsis> | |
53 | <command>hostnamectl</command> | |
54 | <arg choice="opt" rep="repeat">OPTIONS</arg> | |
55 | <arg choice="req">COMMAND</arg> | |
56 | </cmdsynopsis> | |
57 | </refsynopsisdiv> | |
58 | ||
59 | <refsect1> | |
60 | <title>Description</title> | |
61 | ||
62 | <para><command>hostnamectl</command> may be used to query and | |
63 | change the system hostname and related settings.</para> | |
64 | ||
65 | <para>This tool distinguishes three different hostnames: the | |
66 | high-level "pretty" hostname which might include all kinds of | |
67 | special characters (e.g. "Lennart's Laptop"), the static hostname | |
68 | which is used to initialize the kernel hostname at boot (e.g. | |
69 | "lennarts-laptop"), and the transient hostname which is a default | |
70 | received from network configuration. If a static hostname is set, | |
71 | and is valid (something other than localhost), then the transient | |
72 | hostname is not used.</para> | |
73 | ||
74 | <para>Note that the pretty hostname has little restrictions on the | |
75 | characters used, while the static and transient hostnames are | |
76 | limited to the usually accepted characters of Internet domain | |
77 | names.</para> | |
78 | ||
79 | <para>The static hostname is stored in | |
80 | <filename>/etc/hostname</filename>, see | |
81 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
82 | for more information. The pretty hostname, chassis type, and icon | |
83 | name are stored in <filename>/etc/machine-info</filename>, see | |
84 | <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para> | |
85 | ||
86 | <para>Use | |
87 | <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
88 | to initialize the system host name for mounted (but not booted) | |
89 | system images.</para> | |
90 | </refsect1> | |
91 | ||
92 | <refsect1> | |
93 | <title>Options</title> | |
94 | ||
95 | <para>The following options are understood:</para> | |
96 | ||
97 | <variablelist> | |
98 | <varlistentry> | |
99 | <term><option>--no-ask-password</option></term> | |
100 | ||
101 | <listitem><para>Do not query the user for authentication for | |
102 | privileged operations.</para></listitem> | |
103 | </varlistentry> | |
104 | ||
105 | <varlistentry> | |
106 | <term><option>--static</option></term> | |
107 | <term><option>--transient</option></term> | |
108 | <term><option>--pretty</option></term> | |
109 | ||
110 | <listitem><para>If <command>status</command> is used (or no | |
111 | explicit command is given) and one of those fields is given, | |
112 | <command>hostnamectl</command> will print out just this | |
113 | selected hostname.</para> | |
114 | ||
115 | <para>If used with <command>set-hostname</command>, only the | |
116 | selected hostname(s) will be updated. When more than one of | |
117 | those options is used, all the specified hostnames will be | |
118 | updated. </para></listitem> | |
119 | </varlistentry> | |
120 | ||
121 | <xi:include href="user-system-options.xml" xpointer="host" /> | |
122 | <xi:include href="user-system-options.xml" xpointer="machine" /> | |
123 | ||
124 | <xi:include href="standard-options.xml" xpointer="help" /> | |
125 | <xi:include href="standard-options.xml" xpointer="version" /> | |
126 | </variablelist> | |
127 | ||
128 | <para>The following commands are understood:</para> | |
129 | ||
130 | <variablelist> | |
131 | <varlistentry> | |
132 | <term><command>status</command></term> | |
133 | ||
134 | <listitem><para>Show current system | |
135 | hostname and related | |
136 | information.</para></listitem> | |
137 | </varlistentry> | |
138 | ||
139 | <varlistentry> | |
140 | <term><command>set-hostname <replaceable>NAME</replaceable></command></term> | |
141 | ||
142 | <listitem><para>Set the system hostname to | |
143 | <replaceable>NAME</replaceable>. By default, this will alter | |
144 | the pretty, the static, and the transient hostname alike; | |
145 | however, if one or more of <option>--static</option>, | |
146 | <option>--transient</option>, <option>--pretty</option> are | |
147 | used, only the selected hostnames are changed. If the pretty | |
148 | hostname is being set, and static or transient are being set | |
149 | as well, the specified hostname will be simplified in regards | |
150 | to the character set used before the latter are updated. This | |
151 | is done by replacing spaces with <literal>-</literal> and | |
152 | removing special characters. This ensures that the pretty and | |
153 | the static hostname are always closely related while still | |
154 | following the validity rules of the specific name. This | |
155 | simplification of the hostname string is not done if only the | |
156 | transient and/or static host names are set, and the pretty | |
157 | host name is left untouched.</para> | |
158 | ||
159 | <para>Pass the empty string <literal></literal> as the | |
160 | hostname to reset the selected hostnames to their default | |
161 | (usually <literal>localhost</literal>).</para></listitem> | |
162 | </varlistentry> | |
163 | ||
164 | <varlistentry> | |
165 | <term><command>set-icon-name <replaceable>NAME</replaceable></command></term> | |
166 | ||
167 | <listitem><para>Set the system icon name to | |
168 | <replaceable>NAME</replaceable>. The icon name is used by some | |
169 | graphical applications to visualize this host. The icon name | |
170 | should follow the <ulink | |
171 | url="http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html">Icon | |
172 | Naming Specification</ulink>.</para> | |
173 | ||
174 | <para>Pass an empty string to reset the icon name to the | |
175 | default value, which is determined from chassis type (see | |
176 | below) and possibly other parameters.</para></listitem> | |
177 | </varlistentry> | |
178 | ||
179 | <varlistentry> | |
180 | <term><command>set-chassis <replaceable>TYPE</replaceable></command></term> | |
181 | ||
182 | <listitem><para>Set the chassis type to | |
183 | <replaceable>TYPE</replaceable>. The chassis type is used by | |
184 | some graphical applications to visualize the host or alter | |
185 | user interaction. Currently, the following chassis types are | |
186 | defined: | |
187 | <literal>desktop</literal>, | |
188 | <literal>laptop</literal>, | |
189 | <literal>server</literal>, | |
190 | <literal>tablet</literal>, | |
191 | <literal>handset</literal>, | |
192 | <literal>watch</literal>, | |
193 | <literal>embedded</literal>, | |
194 | as well as the special chassis types | |
195 | <literal>vm</literal> and | |
196 | <literal>container</literal> for virtualized systems that lack | |
197 | an immediate physical chassis.</para> | |
198 | ||
199 | <para>Pass an empty string to reset the chassis type to the | |
200 | default value which is determined from the firmware and | |
201 | possibly other parameters.</para> | |
202 | </listitem> | |
203 | </varlistentry> | |
204 | ||
205 | <varlistentry> | |
206 | <term><command>set-deployment <replaceable>ENVIRONMENT</replaceable></command></term> | |
207 | ||
208 | <listitem><para>Set the deployment environment description. | |
209 | <replaceable>ENVIRONMENT</replaceable> must be a single word | |
210 | without any control characters. One of the following is | |
211 | suggested: | |
212 | <literal>development</literal>, | |
213 | <literal>integration</literal>, | |
214 | <literal>staging</literal>, | |
215 | <literal>production</literal>. | |
216 | </para> | |
217 | ||
218 | <para>Pass an empty string to reset to the default empty | |
219 | value.</para> | |
220 | </listitem> | |
221 | </varlistentry> | |
222 | ||
223 | <varlistentry> | |
224 | <term><command>set-location <replaceable>LOCATION</replaceable></command></term> | |
225 | ||
226 | <listitem><para>Set the location string for the system, if it | |
227 | is known. <replaceable>LOCATION</replaceable> should be a | |
228 | human-friendly, free-form string describing the physical | |
229 | location of the system, if it is known and applicable. This | |
230 | may be as generic as <literal>Berlin, Germany</literal> or as | |
231 | specific as <literal>Left Rack, 2nd Shelf</literal>.</para> | |
232 | ||
233 | <para>Pass an empty string to reset to the default empty | |
234 | value.</para> | |
235 | </listitem> | |
236 | </varlistentry> | |
237 | </variablelist> | |
238 | </refsect1> | |
239 | ||
240 | <refsect1> | |
241 | <title>Exit status</title> | |
242 | ||
243 | <para>On success, 0 is returned, a non-zero failure code | |
244 | otherwise.</para> | |
245 | </refsect1> | |
246 | ||
247 | <refsect1> | |
248 | <title>See Also</title> | |
249 | <para> | |
250 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
251 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
252 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
253 | <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
254 | <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
255 | <citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
256 | <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
257 | </para> | |
258 | </refsect1> | |
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259 | |
260 | </refentry> |