Tutorials

This article provides instructions on changing the hostname in Ubuntu 24.04. It emphasizes the importance of unique hostnames for device identification on a network. Users can change the hostname using the `hostnamectl` command and must also update the "/etc/hosts" file. A system reboot is required for changes to take effect.

The post provides a comprehensive guide on installing PostgreSQL and the pgAdmin4 tool on Ubuntu Linux, ideal for students and new users. PostgreSQL, an open-source database, supports C/C++, Java, among other languages. The post details how to add the PostgreSQL repository, install the database, validate its status, and change administrator passwords. It also covers how to install the pgAdmin4 web portal for easy management using a web browser.

This post instructs how to display the Taskbar on additional monitors when using Windows 11. By default, the Taskbar is only on the main monitor, but it can also be extended to other displays. This customization allows users to control minimized apps from every monitor. This can be accomplished by navigating to System Settings, then Personalization, and selecting "Show my taskbar on all displays" within Taskbar behavior.

This post guides students and new users on joining hidden WiFi networks using Windows 11. Hidden networks require a known SSID and password for access. Windows 11's centralized System Settings allows for easy connection. By navigating to WiFi settings and entering the appropriate details, users can successfully connect to hidden WiFi networks.

This article instructs on creating a bootable USB flash drive to install or reinstall Windows 11 using the Media Creation Tool. This tool is useful for users desiring a clean install to avoid issues carried over from Windows 10. The guide covers step-by-step directions to use the tool, from downloading it to setting up the computer boot from the USB drive.

The post provides a guide on adjusting sound volume on Windows 11, either via the Quick Settings menu or the Windows settings app. When using Quick Settings, activating it can be done by clicking a hidden button on top of the Wi-Fi, Speaker, and Battery icons, and adjusting with a slider. The Windows settings app allows for adjustment of individual sound devices.

The article provides instructions on how to enable or disable the WiFi autoSwitch feature on Windows 11. This feature, typically disabled by default, allows the system to automatically connect to a preferred network when it comes into range, which could be advantageous in multi-WiFi network environments. Alternatively, the automatic connection may increase scanning frequency, radio frequency pollution, and power consumption. The guide also explains how to adjust this setting via the System Settings pane or Command Prompt.

The content provides detailed instructions for exporting and importing device drivers on Windows 11. This process aids in the migration or replacement of old PCs with legacy devices. In situations where critical device support from manufactures is absent, users can export the working drivers and use them on a new PC. The post also emphasizes the practice of regularly backing up device drivers. Windows 11 allows this process through specific commands. The tutorial also offers advice on how to selectively import exported drivers.

The post provides step-by-step instructions for upgrading a WordPress website via SSH terminal console. It highlights the methods for backing up database and content, removing old directories, downloading the latest WordPress files, and copying these files into the root directory. Instructions also include the initiation of the upgrade process and ensuring updated changes post-process completion.

The post provides a guide on how to turn on or off checkboxes in File Explorer on Windows 11. This feature helps users select multiple files more easily, making it especially useful for touchscreen or tablet devices. The tutorial provides instructions on enabling the feature and also on how to disable it if no longer desired.

This text explains how to connect to a Wi-Fi network on Windows 11. Instead of a Taskbar icon as in previous versions, Windows 11 uses the Quick Settings feature on the Taskbar to access Wi-Fi. Users can also use the Windows Settings app. For both methods, users need to turn on Wi-Fi, select a network within range, input the password, and connect.

The post provides a comprehensive guide on how to mount or unmount ISO and IMG images on Windows 11. It explains that these images, popular for transferring large files, are mounted as CD/DVD drives in File Explorer and can be accessed for their contents. The process, depending on the system's speed and file size, involves using the 'Mount' or 'Eject' commands in the toolbar or context menu.