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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>hostnamectl</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><style>
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</style><a href="index.html">Index </a>·
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<a href="../libudev/index.html">gudev </a><span style="float:right">systemd 204</span><hr><div class="refentry"><a name="hostnamectl"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>hostnamectl — Control the system hostname</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">hostnamectl [OPTIONS...] {COMMAND}</code> </p></div></div><div class="refsect1"><a name="idm259793979248"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><span class="command"><strong>hostnamectl</strong></span> may be used to
query and change the system hostname and related
settings.</p><p>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").</p><p>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.</p><p>The static host name is stored in
<code class="filename">/etc/hostname</code>, see
<a href="hostname.html"><span class="citerefentry"><span class="refentrytitle">hostname</span>(5)</span></a>
for more information. The pretty host name, chassis
type and icon name are stored in
<code class="filename">/etc/machine-info</code>, see
<a href="machine-id.html"><span class="citerefentry"><span class="refentrytitle">machine-id</span>(5)</span></a>.</p></div><div class="refsect1"><a name="idm259793972096"></a><h2 id="Options">Options<a class="headerlink" title="Permalink to this headline" href="#Options">¶</a></h2><p>The following options are understood:</p><div class="variablelist"><dl class="variablelist"><dt id="-h"><span class="term"><code class="option">-h</code>, </span><span class="term"><code class="option">--help</code></span><a class="headerlink" title="Permalink to this term" href="#-h">¶</a></dt><dd><p>Prints a short help
text and exits.</p></dd><dt id="--version"><span class="term"><code class="option">--version</code></span><a class="headerlink" title="Permalink to this term" href="#--version">¶</a></dt><dd><p>Prints a short version
string and exits.</p></dd><dt id="--no-ask-password"><span class="term"><code class="option">--no-ask-password</code></span><a class="headerlink" title="Permalink to this term" href="#--no-ask-password">¶</a></dt><dd><p>Don't query the user
for authentication for privileged
operations.</p></dd><dt id="-H"><span class="term"><code class="option">-H</code>, </span><span class="term"><code class="option">--host</code></span><a class="headerlink" title="Permalink to this term" href="#-H">¶</a></dt><dd><p>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.</p></dd><dt id="--static"><span class="term"><code class="option">--static</code>, </span><span class="term"><code class="option">--transient</code>, </span><span class="term"><code class="option">--pretty</code></span><a class="headerlink" title="Permalink to this term" href="#--static">¶</a></dt><dd><p>If
<span class="command"><strong>set-hostname</strong></span> is
invoked and one or more of these
options are passed only the selected
hostnames is
updated.</p></dd></dl></div><p>The following commands are understood:</p><div class="variablelist"><dl class="variablelist"><dt id="status"><span class="term"><span class="command"><strong>status</strong></span></span><a class="headerlink" title="Permalink to this term" href="#status">¶</a></dt><dd><p>Show current system
hostname and related
information.</p></dd><dt id="set-hostname [NAME]"><span class="term"><span class="command"><strong>set-hostname [NAME]</strong></span></span><a class="headerlink" title="Permalink to this term" href="#set-hostname%20%5BNAME%5D">¶</a></dt><dd><p>Set the system
hostname. By default this will alter
the pretty, the static, and the
transient hostname alike, however if
one or more of
<code class="option">--static</code>,
<code class="option">--transient</code>,
<code class="option">--pretty</code> 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").</p></dd><dt id="set-icon-name [NAME]"><span class="term"><span class="command"><strong>set-icon-name [NAME]</strong></span></span><a class="headerlink" title="Permalink to this term" href="#set-icon-name%20%5BNAME%5D">¶</a></dt><dd><p>Set the system icon
name. The icon name is used by some
graphical applications to visualize
this host. The icon name should follow
the <a class="ulink" href="http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html" target="_top">Icon
Naming Specification</a>. Pass an
empty string to this operation to
reset the icon name to the default
value which is determined from chassis
type (see below) and possibly other
parameters.</p></dd><dt id="set-chassis [TYPE]"><span class="term"><span class="command"><strong>set-chassis [TYPE]</strong></span></span><a class="headerlink" title="Permalink to this term" href="#set-chassis%20%5BTYPE%5D">¶</a></dt><dd><p>Set the chassis
type. The chassis type is used by some
graphical applications to visualize
the host or alter user
interaction. Currently, the following
chassis types are defined:
<code class="literal">desktop</code>,
<code class="literal">laptop</code>,
<code class="literal">server</code>,
<code class="literal">tablet</code>,
<code class="literal">handset</code>, as well as
the special chassis types
<code class="literal">vm</code> and
<code class="literal">container</code> for
virtualized systems that lack an
immediate physical chassis. Pass an
empty string to this operation to
reset the chassis type to the default
value which is determined from the
firmware and possibly other
parameters.</p></dd></dl></div></div><div class="refsect1"><a name="idm259797884656"></a><h2 id="Exit status">Exit status<a class="headerlink" title="Permalink to this headline" href="#Exit%20status">¶</a></h2><p>On success 0 is returned, a non-zero failure
code otherwise.</p></div><div class="refsect1"><a name="idm259797883472"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
<a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>,
<a href="hostname.html"><span class="citerefentry"><span class="refentrytitle">hostname</span>(1)</span></a>,
<a href="hostname.html"><span class="citerefentry"><span class="refentrytitle">hostname</span>(5)</span></a>,
<a href="machine-info.html"><span class="citerefentry"><span class="refentrytitle">machine-info</span>(5)</span></a>,
<a href="systemctl.html"><span class="citerefentry"><span class="refentrytitle">systemctl</span>(1)</span></a>,
<a href="systemd-hostnamed.service.html"><span class="citerefentry"><span class="refentrytitle">systemd-hostnamed.service</span>(8)</span></a>
</p></div></div></body></html>
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