Ubuntu
Ubuntu installation, desktop and server setup, package management, and troubleshooting.
How to Install and Use Ollama on Ubuntu 26.04 and 24.04
Set up Ollama on Ubuntu 26.04 or 24.04 with the official script, run Llama 3.2 locally, manage models, check GPU use, and call the local API.
How to Install Pi-hole on Ubuntu: Network-Wide Ad Blocker
Install Pi-hole on Ubuntu, configure your router or clients to use it for DNS, and verify ad blocking. Includes Pi-hole v6 setup and troubleshooting.
Debian vs Ubuntu Server: Which One Should You Use?
Debian 13 vs Ubuntu Server 26.04 LTS: release cycles, support windows, package versions, install defaults, security, and cloud support compared side by side.
apt update vs apt upgrade vs apt full-upgrade
Compare apt update, apt upgrade, and apt full-upgrade on Ubuntu and Debian. See which command refreshes package lists, installs updates, or can remove packages.
exFAT on Linux: Mount and Use exFAT Drives on Ubuntu
Linux reads and writes exFAT through a built-in kernel driver. Mount exFAT USB drives and SD cards on Ubuntu, add an fstab entry, format with exfatprogs, and fix 'unknown filesystem type' errors.
Ubuntu Desktop vs Ubuntu Server: Which One Should You Use?
Ubuntu Desktop and Ubuntu Server share the same base but differ in installers, software, resource needs, and workloads. See which edition fits your system.
How to Set a Static IP Address on Ubuntu Server and Desktop
Set a static IP address on Ubuntu with Netplan on servers, nmcli from the command line, or GNOME Settings on the desktop, and test the change safely with netplan try.
Fix the NO_PUBKEY GPG Error on apt update
Fix the apt NO_PUBKEY error on Ubuntu and Debian by installing a verified repository signing key under /etc/apt/keyrings and using signed-by.
dpkg Command in Linux: Install and Manage Debian Packages
Use dpkg to install, remove, query, and inspect Debian packages on Ubuntu, Debian, and other Debian-based distributions.
How to Install Google Chrome Web Browser on Ubuntu 24.04
Step-by-step instructions for downloading, installing, updating, and managing Google Chrome on Ubuntu 24.04 using the official .deb package and repository.
How to Install Google Chrome on Ubuntu 26.04
Install Google Chrome on Ubuntu 26.04 from the official .deb package, set it as the default browser, and keep it updated from the Google repository.
How to Install Java on Ubuntu 24.04
Install Java 25, Java 21, and Oracle JDK on Ubuntu 24.04. This guide covers OpenJDK packages, default Java selection, and JAVA_HOME setup.
How To Create a Sudo User on Ubuntu
Create a sudo user with a home directory on Ubuntu 22.04, 24.04, or 26.04 using adduser and usermod, then verify the account has sudo access.
How to Add a User to Sudoers in Ubuntu
Grant sudo privileges in Ubuntu by adding a user to the sudo group or editing the sudoers file. Step-by-step examples and common errors.
How to Enable SSH on Ubuntu
Enable SSH on Ubuntu by installing OpenSSH Server, checking the correct systemd unit, allowing it through UFW, and connecting from Linux, macOS, or Windows.
How to Fix APT and dpkg Lock Errors on Ubuntu and Debian
Resolve APT and dpkg lock errors safely on Ubuntu and Debian by finding the process holding the lock and repairing interrupted package operations.
How to Add APT Repository in Ubuntu
Add APT repositories in Ubuntu using add-apt-repository, the signed-by method, and PPA. Includes the DEB822 format used by default on Ubuntu 24.04 and 26.04.
