229 lines
10 KiB
XML
229 lines
10 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
|
|
<!--
|
|
This file is part of systemd.
|
|
|
|
Copyright 2012 Lennart Poettering
|
|
|
|
systemd is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
-->
|
|
|
|
<refentry id="hostnamectl">
|
|
|
|
<refentryinfo>
|
|
<title>hostnamectl</title>
|
|
<productname>systemd</productname>
|
|
|
|
<authorgroup>
|
|
<author>
|
|
<contrib>Developer</contrib>
|
|
<firstname>Lennart</firstname>
|
|
<surname>Poettering</surname>
|
|
<email>lennart@poettering.net</email>
|
|
</author>
|
|
</authorgroup>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>hostnamectl</refentrytitle>
|
|
<manvolnum>1</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>hostnamectl</refname>
|
|
<refpurpose>Control the system hostname</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<cmdsynopsis>
|
|
<command>hostnamectl <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="req">COMMAND</arg></command>
|
|
</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>This tool distinguishes three different host
|
|
names: the high-level "pretty" hostname which might
|
|
include all kinds of special characters
|
|
(e.g. "Lennart's Laptop"), the static hostname which
|
|
is used to initialize the kernel hostname at boot
|
|
(e.g. "lennarts-laptop"), and the transient hostname
|
|
which might be assigned temporarily due to network
|
|
configuration and might revert back to the static
|
|
hostname if network connectivity is lost and is only
|
|
temporarily written to the kernel hostname
|
|
(e.g. "dhcp-47-11").</para>
|
|
|
|
<para>Note that the pretty hostname has little
|
|
restrictions on the characters used, while the static
|
|
and transient hostnames are limited to the usually
|
|
accepted characters of internet domain names.</para>
|
|
|
|
<para>The static host name is stored in
|
|
<filename>/etc/hostname</filename>, see
|
|
<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
|
for more information. The pretty host name and icon
|
|
name are stored in
|
|
<filename>/etc/machine-info</filename>, see
|
|
<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Options</title>
|
|
|
|
<para>The following options are understood:</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><option>--help</option></term>
|
|
<term><option>-h</option></term>
|
|
|
|
<listitem><para>Prints a short help
|
|
text and exits.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--version</option></term>
|
|
|
|
<listitem><para>Prints a short version
|
|
string and exits.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--no-ask-password</option></term>
|
|
|
|
<listitem><para>Don't query the user
|
|
for authentication for privileged
|
|
operations.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>-H</option></term>
|
|
<term><option>--host</option></term>
|
|
|
|
<listitem><para>Execute the operation
|
|
remotely. Specify a hostname, or
|
|
username and hostname separated by @,
|
|
to connect to. This will use SSH to
|
|
talk to a remote
|
|
system.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--static</option></term>
|
|
<term><option>--transient</option></term>
|
|
<term><option>--pretty</option></term>
|
|
|
|
<listitem><para>If
|
|
<command>set-hostname</command> is
|
|
invoked and one or more of these
|
|
options are passed only the selected
|
|
hostnames is
|
|
updated.</para></listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
|
|
<para>The following commands are understood:</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><command>status</command></term>
|
|
|
|
<listitem><para>Show current system
|
|
hostname and related
|
|
information.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><command>set-hostname [NAME]</command></term>
|
|
|
|
<listitem><para>Set the system
|
|
hostname. 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 host
|
|
name will be simplified in regards to
|
|
the character set used before the
|
|
latter are updated. This is done by
|
|
replacing spaces by "-" and removing
|
|
special characters. 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 host
|
|
names are set, and the pretty host
|
|
name is left untouched. Pass the empty
|
|
string "" as hostname to reset the
|
|
selected hostnames to their default
|
|
(usually
|
|
"localhost").</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><command>set-icon-name [NAME]</command></term>
|
|
|
|
<listitem><para>Set the system icon
|
|
name. The icon name is used by some
|
|
graphical applications to visualize
|
|
this host. The icon name should follow
|
|
the <ulink
|
|
url="http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html">Icon
|
|
Naming Specification</ulink>. Pass an
|
|
empty string to this operation to
|
|
reset the icon name to the default
|
|
value which is determined from the
|
|
system form factor and possibly other
|
|
parameters.</para></listitem>
|
|
</varlistentry>
|
|
|
|
</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>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|