How to Install and Uninstall .deb Files on Ubuntu 22.04

Ubuntu .deb Installation

All Debian-based distributions. like Debian, Ubuntu and Linux-Mint utilize the Deb installation package format. Thousands of deb packages are available in the Ubuntu repository, that can be installed via Ubuntu Software Center or the apt and apt-get programs from the command line. Unfortunately, not all applications are available through Ubuntu or third-party repositories. Those applications ... Read more

How to set JAVA_HOME path on Ubuntu

JAVA Home Path

Introduction JAVA_HOME is an operating system environment variable that stores the location of the java installation folder. Every time a java program or application is run, this variable is invoked. You need to set up the JAVA_HOME variable correctly to run your java program otherwise you will encounter this error message “Error: JAVA_HOME is not ... Read more

How to Backup OpenVZ Containers with vzdump on CentOS

OpenVZ is a Linux-based Kernel virtualization technology developed by SWSoft for its commercial product Virtuozzo. The modified Linux Kernel and the system utilities are released under an OpenSource license. Vzdump is a shell-based backup program for OpenVZ virtual machines. It is made for containers that use the traditional "simfs" filesystem, it can not be used ... Read more