HOSTNAMECTL(1)hostnamectlHOSTNAMECTL(1)NAMEhostnamectl - Control the system hostname
SYNOPSIShostnamectl [OPTIONS...] {COMMAND}
DESCRIPTIONhostnamectl may be used to query and change the system hostname and
related settings.
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").
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 host name is stored in /etc/hostname, see hostname(5) for
more information. The pretty host name, chassis type and icon name are
stored in /etc/machine-info, see machine-id(5).
OPTIONS
The following options are understood:
-h, --help
Prints a short help text and exits.
--version
Prints a short version string and exits.
--no-ask-password
Don't query the user for authentication for privileged operations.
-H, --host
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.
--static, --transient, --pretty
If set-hostname is invoked and one or more of these options are
passed only the selected hostnames is updated.
The following commands are understood:
status
Show current system hostname and related information.
set-hostname [NAME]
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 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").
set-icon-name [NAME]
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[1]. 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.
set-chassis [TYPE]
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.
EXIT STATUS
On success 0 is returned, a non-zero failure code otherwise.
SEE ALSOsystemd(1), hostname(1), hostname(5), machine-info(5), systemctl(1),
systemd-hostnamed.service(8)NOTES
1. Icon Naming Specification
http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
systemd 204HOSTNAMECTL(1)