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Chapter 2. Changing basic environment settings
Configuration of basic environment settings is a part of the installation process. The following sections guide you when you change them later. The basic configuration of the environment includes:
- Date and time
- System locales
- Keyboard layout
2.1. Configuring the date and time
Accurate timekeeping is important for a number of reasons. In Red Hat Enterprise Linux, timekeeping is ensured by the
NTP protocol, which is implemented by a daemon running in user space. The user-space daemon updates the system clock running in the kernel. The system clock can keep time by using various clock sources.
Red Hat Enterprise Linux 8 uses the
chronyd daemon to implement
chronyd is available from the chrony package. For more information, see Using the chrony suite to configure NTP.
2.1.1. Displaying the current date and time
To display the current date and time, use either of these steps.
$ date Mon Mar 30 16:02:59 CEST 2020
To see more details, use the
$ timedatectl Local time: Mon 2020-03-30 16:04:42 CEST Universal time: Mon 2020-03-30 14:04:42 UTC RTC time: Mon 2020-03-30 14:04:41 Time zone: Europe/Prague (CEST, +0200) System clock synchronized: yes NTP service: active RTC in local TZ: no
- Configuring time settings using the web console
2.2. Configuring the system locale
System-wide locale settings are stored in the
/etc/locale.conf file, which is read at early boot by the
systemd daemon. Every service or user inherits the locale settings configured in
/etc/locale.conf, unless individual programs or individual users override them.
This section describes how to manage system locale.
To list available system locale settings:
$ localectl list-locales C.utf8 aa_DJ aa_DJ.iso88591 aa_DJ.utf8 ...
To display the current status of the system locales settings:
$ localectl status
To set or change the default system locale settings, use a
localectl set-localesub-command as the
rootuser. For example:
# localectl set-locale LANG=en_US
man locale(7), and
2.3. Configuring the keyboard layout
The keyboard layout settings control the layout used on the text console and graphical user interfaces.
To list available keymaps:
$ localectl list-keymaps ANSI-dvorak al al-plisi amiga-de amiga-us ...
To display the current status of keymaps settings:
$ localectl status ... VC Keymap: us ...
To set or change the default system keymap. For example:
# localectl set-keymap us
man locale(7), and
2.4. Changing the language using desktop GUI
This section describes how to change the system language using the desktop GUI.
- Required language packages are installed on your system
GNOME Control Centerfrom the
System menuby clicking on its icon.
GNOME Control Center, choose
Region & Languagefrom the left vertical bar.
Click the Language menu.
Select the required region and language from the menu.
If your region and language are not listed, scroll down, and click More to select from available regions and languages.
- Click Done.
Click Restart for changes to take effect.
Some applications do not support certain languages. The text of an application that cannot be translated into the selected language remains in US English.