hostnamectl may be used to query and change the system hostname and
This tool distinguishes 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 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").
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.
The static hostname is stored in /etc/hostname, see hostname(5) for
more information. The pretty hostname, chassis type, and icon name
are stored in /etc/machine-info, see machine-id(5).
The following options are understood:
Do not query the user for authentication for privileged
Acquire privileges via PolicyKit before executing the operation.
--static, --transient, --pretty
If status is used (or no explicit command is given) and one of
those fields is given, hostnamectl will print out just this
If used with set-hostname, only the selected hostname(s) will be
updated. When more than one of those options is used, all the
specified hostnames will be updated.
Execute the operation remotely. Specify a hostname, or username
and hostname separated by "@", to connect to. This will use SSH
to talk to the remote machine manager instance.
Print a short help text and exit.
Print a short version string and exit.
The following commands are understood:
Show current system hostname and related information.
Set the system hostname. By default, this will alter the pretty,
the static, and the transient hostname alike; however, if one or
more of --static, --transient, --pretty 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 replacing spaces
with "-" 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 the hostname
to reset the selected hostnames to their default (usually
Set the system icon name. The icon name is used by some graphical
applications to visualize this host. The icon name should follow
the Icon Naming Specification. 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
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: "desktop",
"laptop", "server", "tablet", "handset", as well as the special
chassis types "vm" and "container" 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.
This page is part of the systemd (systemd system and service manager)
project. Information about the project can be found at
http://www.freedesktop.org/wiki/Software/systemd. If you have a bug
report for this manual page, see
page was obtained from the project's upstream Git repository
(git://anongit.freedesktop.org/systemd/systemd) on 2014-04-06. If
you discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for the
page, or you have corrections or improvements to the information in
this COLOPHON (which is not part of the original manual page), send a
mail to firstname.lastname@example.org
systemd 211 HOSTNAMECTL(1)