Ubuntu tutorials

Remove Python 3.14 or 3.15 on Ubuntu 22.04 and 24.04 safely: uninstall Deadsnakes packages, delete source altinstall files, clean pyenv versions and venvs, and keep Ubuntu system python3 working.

Learn how to force Chrony time sync in Linux using chronyc makestep and chronyd -q. Also configure Chrony as an NTP client or server, check sync status, and understand server options like iburst, minpoll, and maxpoll.

Learn how to install fonts in Linux using the command line and GUI. Install TTF and OTF fonts for the current user or system-wide, update font cache, verify with fc-list, and uninstall fonts.

Learn how to check sudo access in Linux. Check if you or another user has sudo privileges with sudo -l, test sudo access non-interactively in a bash script with sudo -n, and list all sudo users, with real tested output.

Learn how to refresh network settings in Ubuntu after IP address, route, DNS, DHCP, Netplan, NetworkManager, or systemd-networkd changes. Includes safe remote-server workflow, tested verification commands, and practical …

Learn how to configure a VNC server on Ubuntu with TigerVNC, XFCE, a per-user VNC password, localhost-only binding, SSH tunneling, firewall checks, and a systemd service for persistent remote desktop access.

Learn how to backup and restore Brave Browser profile data on Linux, including settings, bookmarks, session files, cache, profile paths, tar archives, checksums, and safe restore steps.

Learn how to install a specific package version with apt or apt-get on Ubuntu and Debian, list available versions, simulate installs safely, handle dependency conflicts, and hold or unhold package versions.

Learn how to add a Linux user to the sudo group on Ubuntu and Debian, use the wheel group on RHEL-based systems, verify sudo access, and avoid confusing group-based sudo with custom sudoers file rules.

Learn how to check Linux kernel version with tested uname, hostnamectl, procfs, journalctl, dmesg, boot image, dpkg, and apt commands, and understand the difference between the running kernel and installed kernel …

Learn how to check Ubuntu version from the command line or GUI. Use lsb_release, /etc/os-release, hostnamectl, /etc/issue, or Settings to find your Ubuntu release, version number, codename, and kernel.

Learn how to list groups in Linux and check user group membership using commands like groups, id, getent, compgen, and /etc/group. This guide explains how to view all groups, list groups for a user, and display users …

Step by Step instructions to install yarn on Linux and WIndows. Installation on Ubuntu (Debian based) and Rocky Linux (Red hat based) and Windows.

Learn when and how to restart crontab in Linux. See cron restart and reload commands for Ubuntu, Debian, RHEL, CentOS—and when a restart is NOT required.

There are two different versions of pip which you can install to solve the error i.e. pip command not found in Ubuntu 20.04 Linux. Step by Step instructions to fix pip command not found error.

This tutorial will guide you through step by step instructions to install ImageMagick on Ubuntu, covering various methods like APT and compiling from source. We'll also explore basic usage, including image conversion and …

Learn how to install XFCE on Ubuntu using multiple methods including minimal XFCE installation, full Xubuntu desktop setup, and GUI installation on Ubuntu Server. This guide also explains how to switch desktop …

Learn how to mount a USB drive in Linux using command line tools. This step-by-step guide explains how to identify USB devices, install required filesystem packages, mount USB drives manually, verify mount points, …

Learn how to list users in Linux using commands like getent, /etc/passwd, compgen, who, and id. This guide explains multiple practical methods to view all users, logged-in users, normal users, system accounts, and users …

In this tutorial I will share the steps to create iSCSI target using Ubuntu 22.04 VM installed on Oracle VirtualBox.

This tutorial will guide you through steps to install Gobuster on Ubuntu, configuring it, and basic to advanced usage tips, including working with wordlists and uninstalling if needed.

This tutorial guides you through step by step instructions to install Nvidia drivers on Ubuntu, covering different methods like GUI, command line, and PPA repository. It includes compatibility checks, manual …

This tutorial guides you through step by step instructions to install PostgreSQL on Ubuntu, including system preparation, secure installation, basic configuration, and accessing the database, with practical examples.

In this tutorial, we'll guide you through steps to install Darktable on Ubuntu, a powerful photo editing tool. We'll cover different methods including APT, PPA, and Flatpak, launching the program, and some basic tips for …

This tutorial will guide you through detailed steps to install and configure Memcached on Ubuntu. We'll cover the installation process, setting up the configuration file, managing the Memcached service, connecting it …

This tutorial will guide you through step by step procedure to install Dart on Ubuntu, covering two installation methods (APT and Debian package), verifying the installation, creating a simple Dart program, and the …

Step by Step instructions to install PhotoQt on Ubuntu environment.

Step by Step instructions to install and setup ipv4 UEFI PXE Boot Server for automated installation of Ubuntu 20.04 using cloud-init configuration file.

Step by step instructions to install and configure PXE boot server to perform automated installation of Ubuntu 20.04 using cloud-init configuration file

Step by step instructions to dual boot Ubuntu with Kali Linux. Choose default boot menu.