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1 | <?xml version='1.0'?> <!--*-nxml-*--> |
2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | |
3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> | |
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 | ||
56ba3c78 | 24 | <refentry id="hostnamectl" conditional='ENABLE_HOSTNAMED'> |
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25 | |
26 | <refentryinfo> | |
27 | <title>hostnamectl</title> | |
28 | <productname>systemd</productname> | |
29 | ||
30 | <authorgroup> | |
31 | <author> | |
32 | <contrib>Developer</contrib> | |
33 | <firstname>Lennart</firstname> | |
34 | <surname>Poettering</surname> | |
35 | <email>lennart@poettering.net</email> | |
36 | </author> | |
37 | </authorgroup> | |
38 | </refentryinfo> | |
39 | ||
40 | <refmeta> | |
41 | <refentrytitle>hostnamectl</refentrytitle> | |
42 | <manvolnum>1</manvolnum> | |
43 | </refmeta> | |
44 | ||
45 | <refnamediv> | |
46 | <refname>hostnamectl</refname> | |
47 | <refpurpose>Control the system hostname</refpurpose> | |
48 | </refnamediv> | |
49 | ||
50 | <refsynopsisdiv> | |
51 | <cmdsynopsis> | |
960787ae ZJS |
52 | <command>hostnamectl</command> |
53 | <arg choice="opt" rep="repeat">OPTIONS</arg> | |
54 | <arg choice="req">COMMAND</arg> | |
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55 | </cmdsynopsis> |
56 | </refsynopsisdiv> | |
57 | ||
58 | <refsect1> | |
59 | <title>Description</title> | |
60 | ||
61 | <para><command>hostnamectl</command> may be used to | |
62 | query and change the system hostname and related | |
5a5c72ca | 63 | settings.</para> |
dbc4fbae | 64 | |
e9dd9f95 JSJ |
65 | <para>This tool distinguishes three different |
66 | hostnames: the high-level "pretty" hostname which | |
67 | might include all kinds of special characters | |
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68 | (e.g. "Lennart's Laptop"), the static hostname which |
69 | is used to initialize the kernel hostname at boot | |
70 | (e.g. "lennarts-laptop"), and the transient hostname | |
71 | which might be assigned temporarily due to network | |
72 | configuration and might revert back to the static | |
73 | hostname if network connectivity is lost and is only | |
74 | temporarily written to the kernel hostname | |
75 | (e.g. "dhcp-47-11").</para> | |
76 | ||
77 | <para>Note that the pretty hostname has little | |
78 | restrictions on the characters used, while the static | |
79 | and transient hostnames are limited to the usually | |
409dee2e | 80 | accepted characters of Internet domain names.</para> |
dbc4fbae | 81 | |
e9dd9f95 | 82 | <para>The static hostname is stored in |
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83 | <filename>/etc/hostname</filename>, see |
84 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
e9dd9f95 | 85 | for more information. The pretty hostname, chassis |
960787ae | 86 | type, and icon name are stored in |
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87 | <filename>/etc/machine-info</filename>, see |
88 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para> | |
89 | </refsect1> | |
90 | ||
91 | <refsect1> | |
92 | <title>Options</title> | |
93 | ||
94 | <para>The following options are understood:</para> | |
95 | ||
96 | <variablelist> | |
97 | <varlistentry> | |
dbc4fbae | 98 | <term><option>-h</option></term> |
a7f5bb1e | 99 | <term><option>--help</option></term> |
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100 | |
101 | <listitem><para>Prints a short help | |
102 | text and exits.</para></listitem> | |
103 | </varlistentry> | |
104 | ||
105 | <varlistentry> | |
106 | <term><option>--version</option></term> | |
107 | ||
108 | <listitem><para>Prints a short version | |
109 | string and exits.</para></listitem> | |
110 | </varlistentry> | |
111 | ||
112 | <varlistentry> | |
113 | <term><option>--no-ask-password</option></term> | |
114 | ||
409dee2e | 115 | <listitem><para>Do not query the user |
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116 | for authentication for privileged |
117 | operations.</para></listitem> | |
118 | </varlistentry> | |
119 | ||
2927b326 JJ |
120 | <varlistentry> |
121 | <term><option>-P</option></term> | |
122 | <term><option>--privileged</option></term> | |
123 | ||
124 | <listitem><para>Acquire privileges via PolicyKit | |
125 | before executing the operation.</para></listitem> | |
126 | </varlistentry> | |
127 | ||
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128 | <varlistentry> |
129 | <term><option>-H</option></term> | |
130 | <term><option>--host</option></term> | |
131 | ||
5a5c72ca | 132 | <listitem><para>Execute the operation |
dbc4fbae | 133 | remotely. Specify a hostname, or |
05cc7267 | 134 | username and hostname separated by <literal>@</literal>, |
dbc4fbae | 135 | to connect to. This will use SSH to |
63ba209d | 136 | talk to the remote |
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137 | system.</para></listitem> |
138 | </varlistentry> | |
139 | ||
140 | <varlistentry> | |
141 | <term><option>--static</option></term> | |
142 | <term><option>--transient</option></term> | |
143 | <term><option>--pretty</option></term> | |
144 | ||
145 | <listitem><para>If | |
960787ae ZJS |
146 | <command>status</command> is used (or |
147 | no explicit command is given) and one | |
148 | of those fields is given, | |
149 | <command>hostnamectl</command> will | |
150 | print out just this selected | |
151 | hostname.</para> | |
152 | ||
153 | <para>If used with | |
154 | <command>set-hostname</command>, only | |
155 | the selected hostname(s) will be | |
156 | updated. When more than one of those | |
157 | options is used, all the specified | |
158 | hostnames will be updated. | |
159 | </para></listitem> | |
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160 | </varlistentry> |
161 | </variablelist> | |
162 | ||
163 | <para>The following commands are understood:</para> | |
164 | ||
165 | <variablelist> | |
166 | <varlistentry> | |
167 | <term><command>status</command></term> | |
168 | ||
169 | <listitem><para>Show current system | |
170 | hostname and related | |
171 | information.</para></listitem> | |
172 | </varlistentry> | |
173 | ||
174 | <varlistentry> | |
175 | <term><command>set-hostname [NAME]</command></term> | |
176 | ||
177 | <listitem><para>Set the system | |
e9dd9f95 | 178 | hostname. By default, this will alter |
dbc4fbae | 179 | the pretty, the static, and the |
e9dd9f95 | 180 | transient hostname alike; however, if |
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181 | one or more of |
182 | <option>--static</option>, | |
183 | <option>--transient</option>, | |
e9dd9f95 | 184 | <option>--pretty</option> are used, |
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185 | only the selected hostnames are |
186 | changed. If the pretty hostname is | |
187 | being set, and static or transient are | |
e9dd9f95 JSJ |
188 | being set as well, the specified |
189 | hostname will be simplified in regards | |
190 | to the character set used before the | |
dbc4fbae | 191 | latter are updated. This is done by |
05cc7267 ZJS |
192 | replacing spaces with |
193 | <literal>-</literal> and removing | |
dbc4fbae | 194 | special characters. This ensures that |
e9dd9f95 JSJ |
195 | the pretty and the static hostname are |
196 | always closely related while still | |
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197 | following the validity rules of the |
198 | specific name. This simplification of | |
199 | the hostname string is not done if | |
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200 | only the transient and/or static host |
201 | names are set, and the pretty host | |
202 | name is left untouched. Pass the empty | |
203 | string <literal></literal> as the | |
204 | hostname to reset the selected | |
205 | hostnames to their default (usually | |
206 | <literal>localhost</literal>).</para></listitem> | |
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207 | </varlistentry> |
208 | ||
209 | <varlistentry> | |
210 | <term><command>set-icon-name [NAME]</command></term> | |
211 | ||
212 | <listitem><para>Set the system icon | |
213 | name. The icon name is used by some | |
214 | graphical applications to visualize | |
215 | this host. The icon name should follow | |
216 | the <ulink | |
217 | url="http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html">Icon | |
218 | Naming Specification</ulink>. Pass an | |
5a5c72ca | 219 | empty string to this operation to |
dbc4fbae | 220 | reset the icon name to the default |
e9dd9f95 | 221 | value, which is determined from chassis |
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222 | type (see below) and possibly other |
223 | parameters.</para></listitem> | |
224 | </varlistentry> | |
225 | ||
226 | <varlistentry> | |
227 | <term><command>set-chassis [TYPE]</command></term> | |
228 | ||
229 | <listitem><para>Set the chassis | |
230 | type. The chassis type is used by some | |
231 | graphical applications to visualize | |
232 | the host or alter user | |
233 | interaction. Currently, the following | |
234 | chassis types are defined: | |
235 | <literal>desktop</literal>, | |
236 | <literal>laptop</literal>, | |
237 | <literal>server</literal>, | |
238 | <literal>tablet</literal>, | |
239 | <literal>handset</literal>, as well as | |
240 | the special chassis types | |
241 | <literal>vm</literal> and | |
242 | <literal>container</literal> for | |
243 | virtualized systems that lack an | |
244 | immediate physical chassis. Pass an | |
245 | empty string to this operation to | |
246 | reset the chassis type to the default | |
dbc4fbae | 247 | value which is determined from the |
7871c8e9 | 248 | firmware and possibly other |
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249 | parameters.</para></listitem> |
250 | </varlistentry> | |
251 | ||
252 | </variablelist> | |
253 | </refsect1> | |
254 | ||
255 | <refsect1> | |
256 | <title>Exit status</title> | |
257 | ||
258 | <para>On success 0 is returned, a non-zero failure | |
259 | code otherwise.</para> | |
260 | </refsect1> | |
261 | ||
262 | <refsect1> | |
263 | <title>See Also</title> | |
264 | <para> | |
265 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
266 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
267 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
268 | <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
269 | <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
270 | <citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> | |
271 | </para> | |
272 | </refsect1> | |
273 | ||
274 | </refentry> |