Linux Tutorials
How To Install LibreOffice on Ubuntu 22.04
LibreOffice is a free and open-source office suite with a clean interface. It provides most of the tools required for…
Author: Rahul
I, Rahul Kumar am the founder and chief editor of TecAdmin.net. I am a Red Hat Certified Engineer (RHCE) and working as an IT professional since 2009..
Windows Tutorials
How to Enable / disable Firewall in Windows
A firewall is a security application that prevents unauthorized users and secures your system. By default, the Firewall is installed…
JAVA
How to Install JAVA on Ubuntu 22.04
Java is the most popular object-oriented, robust, platform-independent programming language. A large number of applications developed on Java required a…
Desktop Environments
Switching Display Manager in Ubuntu (GDM, LightDM & SDDM)
Ubuntu is a popular version of Linux that lets you choose different Display Managers to make your system easy to…
Ubuntu
Changing the Login Screen Background in Ubuntu 22.04 & 20.04
The login screen is the first thing you see when booting up your Ubuntu system, and customizing its background can…
PHP
How To Install PHP (8.3, 8.2, 7.4) on Ubuntu 22.04
PHP is a programming language used for developing web applications. You must install PHP packages on a Ubuntu system to…
Ubuntu
(Resolved) Please install all available updates for your release before upgrading
The Problem: While upgrading the Ubuntu OS version, I faced the following issue with the do-release-upgrade command. Even all the…
General Articles
(Resolved) zookeeper is not a recognized option – Kafka
Problem Recently, I installed Apache Kafka on the Ubuntu system. When tried to run the consumer console script, I found…
Ubuntu
How to Install LightDM Display Manager on Ubuntu
LightDM is a free, opensource and lightweight X Display Manager for Linux Desktop systems. It is also used as a…
Linux Tutorials
(Resolved) userauth_pubkey: key type ssh-rsa not in PubkeyAcceptedAlgorithms
The Problem: Today, I launched a new AWS instance with Ubuntu 22.04. The default key provided by AWS is working…