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hostnamectl(1) - phpMan

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HOSTNAMECTL(1)                             hostnamectl                             HOSTNAMECTL(1)

       hostnamectl - Control the system hostname

       hostnamectl [OPTIONS...] {COMMAND}

       hostnamectl may be used to query and change the system hostname and related settings.

       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 is a default received from network configuration. If a
       static hostname is set, and is valid (something other than localhost), then the transient
       hostname is not used.

       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-

       The following options are understood:

           Do not query the user for authentication for privileged operations.

       --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 selected hostname.

           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.

       -H, --host=
           Execute the operation remotely. Specify a hostname, or a username and hostname
           separated by "@", to connect to. The hostname may optionally be suffixed by a
           container name, separated by ":", which connects directly to a specific container on
           the specified host. This will use SSH to talk to the remote machine manager instance.
           Container names may be enumerated with machinectl -H HOST.

       -h, --help
           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-hostname NAME
           Set the system hostname to NAME. 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 "localhost").

       set-icon-name NAME
           Set the system icon name to 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 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 to 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", "watch", as
           well as the special chassis types "vm" and "container" for virtualized systems that
           lack an immediate physical chassis.

           Pass an empty string to reset the chassis type to the default value which is
           determined from the firmware and possibly other parameters.

       On success, 0 is returned, a non-zero failure code otherwise.

       systemd(1), hostname(1), hostname(5), machine-info(5), systemctl(1), systemd-

        1. Icon Naming Specification

systemd 215                                                                        HOSTNAMECTL(1)

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