SysAdmin

This guide shows you how to fix the 'add-apt-repository command not found' error in Ubuntu. This specific Ubuntu error appears when trying to add a new software repository and indicates that the command is not installed on your system.

This easy tutorial shows you how to install VMware Workstation Pro on Ubuntu. With the help of a hypervisor, one server can share its resources to create many virtual ones.

Cron is used to schedule scripts and commands on Linux systems. Find out where these jobs are stored and list cron jobs running on your computer.

By setting up a private Docker registry, you can save valuable resources and speed up development processes. With a private registry, you can pull images from Docker Hub and share them with other Docker hosts in your network. In this tutorial, learn how to set up Docker private registry and configure it for external accessibility.

The .htaccess file in WordPress is a configuration file for managing hyperlinks. It is most commonly used to rewrite URLs, making them clearer and more readable by both people and search engines. This file is included by default in a new WordPress installation. This guide will help you find, modify, and create a .htaccess file for WordPress.

If you are using Debian 9 or Debian 10 to manage servers, you must ensure that the transfer of data is as safe as possible. This tutorial covers the necessary steps you need to take to establish a secure connection with a remote machine by using SSH.

PostgreSQL is an open-source, relational database management system. Follow this guide for two ways of installing PostgreSQL on Ubuntu and connecting to your database.

NGINX (pronounced "Engine X") is a web server application used to set up a reverse proxy. This guide provides an in-depth look into setting up a reverse proxy via NGINX.

This guide explains how to fix the "Your PHP installation appears to be missing the MySQL extension" using several different methods.

The easiest way to set up a reverse proxy is using Docker and Nginx. Learn how to set up reverse proxy for web servers by running each service in a Docker container.