SysAdmin

Etcher is a popular, user-friendly image flasher, which uses .iso and .img files to create bootable USB drives and SD cards. This tutorial shows you how to install Etcher on Ubuntu.

firewalld is the default firewall tool on CentOS and Rocky Linux servers. This tutorial shows you how to disable and stop the firewalld service.

There are many reasons for knowing the OS version you are running, such as when troubleshooting a problem or ensuring your Linux operating system is up-to-date. In this guide, discover different options for checking CentOS or Rocky Linux version on your computer.

The sed command is one of the oldest and most useful command-line tools for text transformation. Learn how to utilize the most commonly used feature of sed: finding and replacing a string in a file.

Linux offers multiple tools for data transfer to and from a server, the most popular being curl and wget. This tutorial will show you how to use the curl command, and provide you with an exhaustive list of the supported protocols and available options.

There are several methods to remove old or unused kernels. It’s also considered good system hygiene practice to prune out old files and dependencies. This guides shows you how to do delete old Linux kernels in a couple of simple steps.

Hiding files and folders can help you keep sensitive or cluttered data out of sight without deleting it. This guide explains simple steps to create hidden files and directories using both graphical interfaces and command-line methods.

The locate command is a utility that allows users to quickly search for files or directories in Linux. This tutorial shows how to install and effectively use the locate command.

As a highly popular programming language, Java is used for developing anything from lightweight mobile to desktop applications. This step-by-step guide shows you how simple it is to install Java on CentOS and Rocky Linux.

Linux stores visible and hidden files in its directories. You can display these hidden files using simple commands or the graphical user interface. Apart from showing these hidden files, this guide show you how to hide files and directories, as well as how to set a password-protection.