| 1. | Icon Naming Specification |
NAME
hostnamectl - Control the system hostname
SYNOPSIS
hostnamectl [OPTIONS...] {COMMAND}
DESCRIPTION
hostnamectl may be used to query and change the system hostname and related settings.
systemd-hostnamed.service(8) and this tool distinguish 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 the user-configured hostname (e.g. "lennarts-laptop"), and the transient hostname which is a fallback value received from network configuration (e.g. "node12345678"). If a static hostname is set to a valid value, then the transient hostname is not used.
Note that the pretty hostname has little restrictions on the characters and length used, while the static and transient hostnames are limited to the usually accepted characters of Internet domain names, and 64 characters at maximum (the latter being a Linux limitation).
Use systemd-firstboot(1) to initialize the system hostname for mounted (but not booted) system images.
COMMANDS
The following commands are understood:
status
Added in version 195.
hostname [NAME]
The static and transient hostnames must each be either a single DNS label (a string composed of 7-bit ASCII lower-case characters and no spaces or dots, limited to the format allowed for DNS domain name labels), or a sequence of such labels separated by single dots that forms a valid DNS FQDN. The hostname must be at most 64 characters, which is a Linux limitation (DNS allows longer names).
Added in version 249.
icon-name [NAME]
Added in version 249.
chassis [TYPE]
Added in version 249.
deployment [ENVIRONMENT]
Added in version 249.
location [LOCATION]
Added in version 249.
OPTIONS
The following options are understood:
--static, --transient, --pretty
If used with hostname, only the selected hostnames will be updated. When more than one of these switches are specified, all the specified hostnames will be updated.
Added in version 195.
-H, --host=
-M, --machine=
--no-ask-password
-h, --help
--version
--json=MODE
-j
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.
SEE ALSO
systemd(1), hostname(1), hostname(5), machine-info(5), systemctl(1), systemd-hostnamed.service(8), systemd-firstboot(1)
NOTES
- 1.
Icon Naming Specification