For system, network and cloud administrators

How to append text to a file in Linux

For example, I wanted the current logged user in my Ubuntu desktop, to be added to the sudoers file. That was important for me because I wanted to run podman. In order to do that, I’ve used several methods.

How to boot multiple ISOs from a flash drive with Ventoy

How to boot multiple ISOs from a flash drive with Ventoy

Ventoy had its first release at the beginning of April 2020. Its support across the Windows and Linux environment is already astonishingly large. I’m currently testing version and below, you’ll see how to use it on Windows and Linux.

How to check installed and used Python version on Linux

Knowing which Python version your Linux comes pre-installed with is definitely useful, especially if you’re a system, network admin, developer. Most Linux distributions use multiple Python versions installed on their machine – this being the reason why we’ll learn how to check for Python v2 and v3.

How to display hardware system information on Linux

On Linux, sometimes we need to know various information about our hardware – information like the full path of your flash drive that you have inserted in one of your USB ports, your storage devices or maybe you need to know what is the name of your audio/network card, your CPU … you name it.

How to bring a network interface up or down with ifconfig in Linux

On some machines running Ubuntu frequently, you can easily restart (down/up state) a network interface by ultimately using the ifconfig command.