System Administration

If you’re logged into a remote system via SSH and need to disconnect, there are a few different ways to close the SSH session. You can choose from commands, a keyboard shortcut, or escape characters in the case of a hung connection. In this tutorial, you will learn all the ways possible to disconnect from […]

Symbolic links (also called symlinks or soft links) act as shortcuts to other files or directories on Linux. Usually, they are just used as a matter of convenience. Sometimes, they’re also used to create links to files whose paths frequently change. For example, it’s easier to update a single symlink than it is to update

If you used the certbot utility to obtain your free SSL certificate from Let’s Encrypt, but now wish to delete it, there’s a very simple way to do it. Follow along with us as we show you how to delete a site’s certificate data with certbot on Linux. Option 1. To delete a site in

Although GNOME is the default GUI, there are many different desktop environments available for Ubuntu. If you want to try a different desktop environment, or need to install a GUI because you don’t have one yet, we’ll show you how in this guide. These instructions will also work for Ubuntu Server, which doesn’t have a

In this tutorial, you will learn how to check the installed version of GNOME desktop environment on your Linux system. This can be accomplished through command line or via GUI as you will see below. Check GNOME Version – Command Line Open the terminal and type in: $ gnome-shell –version Check GNOME Version – GUI

A home directory is a user’s default directory when they log into Linux. It’s normally created automatically inside of the /home directory, such as /home/username. In this tutorial, you will learn how to change the home directory for a user in Linux by using the usermod command. Step 1. First, let’s create a new directory

There are several ways to view your system’s IP address in Linux. In this tutorial, you will learn how to see your IP address from command line and GUI. In case you want to check your system’s external IP address instead: Check External IP From Linux Command Line Commands to View Internal IP Address Method

To access the contents of an ISO file in Linux, you will need to mount it. In this tutorial, you will learn how to mount an ISO file using command line and GUI. Mount ISO File via Command Line Step 1. Create an empty directory where you would like to mount your ISO file, unless

Network namespaces are a feature baked into the Linux kernel that allows users to virtualize aspects of a system’s networking. This feature comes in handy in many scenarios, one of which is to bind a process to a particular network interface. Normally, the IP routing table is used to determine which interface outbound traffic is

As a backend developer, sometimes you have to work with other people who have no knowledge of how to prepare the environment to work with for a certain project, which requires downloading a repository, preparing the environment, working with databases, and other requirements. The problem is how can you make them collaborate with certain parts