System Administration

VirtualBox Guest Additions will help you get the most out of your Kali Linux virtual machine. It gives you automatic resolution scaling, a shared clipboard between the host and VM, and drag and drop ability. The step by step instructions below will explain how to install VirtualBox Guest Additions on Kali Linux. Kali Linux will […]

This guide will show how to upgrade to Debian 11 Bullseye, which is the latest version of the operating system, released on August 14, 2021. Upgrade to Debian 11 Bullseye Step 1. You’ll need a completely up to date system in order to start the upgrade. Open a terminal and type the following commands to

This guide will show how to upgrade to Ubuntu 22.04 Jammy Jellyfish, which is the latest LTS version of the operating system. Canonical releases new LTS (long term support) versions of Ubuntu every two years, in April. They also release interim editions every six months. It’s always recommended that you keep Ubuntu up to date

Ubuntu comes with ufw (uncomplicated firewall) installed by default. This is a frontend for iptables/nftables, the built-in Linux firewall, and is meant to make firewall management a bit easier. In this guide, you’ll see how to add rules to the firewall to open ports and allow certain services to have access through the firewall on

Ubuntu comes with ufw (uncomplicated firewall) installed by default. This is a frontend for iptables/nftables, the built-in Linux firewall, and is meant to make firewall management a bit easier. Stop/Disable Firewall in Ubuntu If you find the Ubuntu firewall interfering with connections on your system, one option is to disable the firewall completely. Warning: it’s

Asking “What version of Linux am I running?” could generate a few different answers. Do you want to know the version of the Linux kernel, or just the name of the Linux distribution that’s installed? We’ll show you how to find all the answers in this guide. What Comprises a Linux System? Linux is comprised

Disabling a user account in Linux means the user can no longer login to the system. However, the account will still persist on the system, which makes it different than deleting a user account entirely. You may need to disable a user account temporarily, or disable the login capability for a system account. In this

The links below will take you directly to the download pages of some of the most popular Linux distributions. All distros in this list are completely free to download and use. Not sure which one to choose? Check below the link table to find out more about each distribution and to learn about Linux in

User accounts on a Linux system that are no longer being used should be removed. This is better for security, and you don’t want your computer or server convoluted with unused accounts. In this guide, we’ll go over the step by step instructions to delete a user via Linux command line. Note: It’s also possible

Linux is a multi-user opertating system. Linux also utilizes groups, which contain a set of user accounts. This makes it easier to assign correct permissions on various files throughout the system. For example, you could grant read and write access to the office group for a certain file, which means anyone in that group can