SysAdmin

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.

VirtualBox is a powerful tool for running a virtual operating system on your computer. In this tutorial learn how to install VirtualBox on Ubuntu 18.04.

The article shows you how to create a basic Python script that displays the current date and time. Find out how to use the datetime and time modules to format the information you need.

This article is meant to help system administrators configure SSH Keys on Ubuntu. The instructions allow you to set up encrypted credentials quickly.

If you do not keep your Ubuntu operating system up-to-date, you run the risk of compromising overall system security. Managing the process manually, wastes valuable resources and can even lead to overlooking essential security updates. In this tutorial, we explain how to Enable automatic security updates in Ubuntu 18.04. Doing so ensures your system stays protected with the latest security packages at all times.

You have probably noticed your Linux OS slowing down, especially when working harder. Understanding CPU processor usage is critical for overall performance measurement.

Ddpkg is a tool used to install packages in Debian-based distributions. The error message “Sub-process /usr/bin/dpkg returned an error code (1)” indicates a problem with the package installer. This guide shows different methods for resolving the issue.

This guide provides practical reasons and steps to perform a migration from CentOS to Ubuntu. Learn why Ubuntu is a good choice in this guide!

Store, control, and protect the data you use for authentication or authorization by installing Vault in your Ubuntu 18.04 system. In this tutorial you will learn step by step how to install and configure Vault, as well as how to set up Consul.

This article lists the most useful grep commands in Linux. It provides clear-cut examples and explains how to use grep options.