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Fixing "unable to locate package openjdk-8-jdk" in your Ubuntu Server

How to Fix “unable to locate package openjdk-8-jdk” in Ubuntu Server

By default, Ubuntu Server does not come with OpenJDK installed. OpenJDK must be installed manually from the repository. However, sometimes even after running “sudo apt-get update”, the OpenJDK package is not found on the repository, even though it should be available for installation. The installation will fail with the following error: How to Fix “unable …

Installing build-essential in Ubuntu or CentOS

How to Install build-essentials in CentOS or Ubuntu

Linux is an operating system suited for software development. In Linux, you can build and run various software written in different languages, such as C, C++, Python, and Java. However, in default, mainstream Linux distributions do not bundle development tools – they have to be installed separately through the package manager upon successful installation of …

Fixing permission denied in Ubuntu when using sudo

How to Fix Ubuntu Permission Denied When Using sudo Command

Sudo, or “superuser do” is a very powerful command in Linux. It essentially allows you to run the command as root, the highest level of user in the Linux hierarchy, and analogous to administrator user account in Windows. Root users can execute very sensitive commands, such as formatting a hard drive and installing new hardware …

How to install VMware Tools in CentOS 7

Installing VMware Tools in CentOS 7, The Complete Guide

Nowadays, the use of virtual machines is widespread as virtualization allows you to run more than one operating system on one computer at the same time. One of the most popular hypervisors to run virtual machine is VMware. With VMware Workstation, you can install various guest operating systems, such as Windows, Linux, and FreeBSD. To …

Ubuntu restart X Server from command line

How to Restart Ubuntu X Window Server From Command Line

In today’s Linux guide, I’ll show you how to restart Ubuntu X Server from the command line or terminal. In some cases session might freezes and you’re stuck because don’t know what to do to resolved it. If you’re wondering, X Server provides you with graphical desktop interface in the Linux environment. X server can …

How To Install PHP 7.0, PHP 7.1 and PHP 7.2 on CentOS 7

Using an obsolete PHP version is clearly not recommended, especially for a web hosting environment. However, in some cases you might encounter compatibility issues with your web software system requirements with a PHP version you’re using, which ultimately requires you to use an older PHP7 version. Now, several PHP7 versions have and will reach its …

How To Install Nginx, PHP7.3-FPM and MariaDB 10.4 on CentOS 7

If you’ve read our previous tutorials, you should understand how to install and setup the LEMP stack on the Ubuntu LTS server. Installing the LEMP stack on the Ubuntu LTS and CentOS servers is very different. Well, in this tutorial we will guide you on how to install and setup Nginx, PHP 7.3 with FastCGI …