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Installing Node.js on CentOS 8: a Complete Guide

Introduction Node.js is a free-to-use, open-source server environment. It is commonly used for browser-based web development purposes. It allows developers to use JavaScript to do backend programming. Since most developers are intimately familiar with JavaScript, it makes things very easy. The program lets you add, modify, and delete files on the server, produce dynamic content, and collect data. In this …

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How to Install and Secure Redis on Ubuntu 18.04

Redis is a powerful in-memory key-value store that can be used as a database server, cache, and message broker. It’s widely known for its fast performance, flexibility, and support for a wide variety of languages. It’s free and open-source software that’s written in the C programming language. In this guide, check out how to install and secure Redis on Ubuntu …

create a kubernetes cluster

How To Create a Kubernetes Cluster Using Kubeadm on Ubuntu 18.04

This tutorial will guide you on setting up a Kubernetes cluster from scratch using Ansible and Kubeadm and further deploying a containerized Nginx application with it. Introduction Kubernetes (also known as k8s or “kube”) is an open-source container orchestration platform that automates many of the manual processes involved in deploying, managing, and scaling containerized applications. Kubernetes has a rapidly growing …

Setting up a UFW on Ubuntu and Debian Cloud Server

Introduction We all know that computer security is essential for protecting your data. If a hacker was to find their way into your server, they can cause some serious damage. To make sure this doesn’t happen, you need to employ the appropriate security measures. The first line of defense that any incoming threat would encounter in a safeguarded system would …

mod_proxy Extension: Using Apache as a Reverse Proxy

A Guide on the mod_proxy Extension: Using Apache as a Reverse Proxy

Introduction Third-party extensions are extremely helpful additions. These make your experience of configuring and working with a server, such as Apache HTTP, much simpler and more facilitative. In a time of need, you can even use some of these modules in Apache to run a reverse proxy. You can either remove a layer from your server setup or you can …

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Netcat Utility on Linux: Testing TCP/UDP Connections on a VPS with Netcat

Introduction One of the biggest advantages of using Linux is the plethora of helpful utilities it provides. The in-program features are usually sufficient for most programmers to do their work. This means that most of the time, you will not need to download external programs and software. The built-in tools will provide you enough utility. Among these helpful features is …

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SQLite vs MySQL vs. PostgreSQL: Relational Database Management Systems Compared

Introduction Database management tools are mostly used by the relational data model. This model organizes data into tables consisting of columns and rows. While this model remains dominant in terms of storing and managing worldwide data, there are other data models such as NoSQL and NewSQL out there. In this tutorial we will delve into three of the most widely …

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Configuring the Apache Web Server on an Ubuntu or Debian VPS

Introduction Apache is currently the most widely used web server in the world. It is an open-source software developed over twenty years ago and maintained by the Apache Software Foundation. As of September 2020, it is estimated to be serving 35% of all website traffic in the world. Developers prefer Apache for its speed, security, reliability, robustness, and ease of …

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Configuring the Linux Sudoers File

Introduction Do you ever wonder why you must type “sudo” while trying to execute certain commands in a Linux or Unix Operating System environment? Sudo is actually an abbreviation, standing for “super-user do”. When you use the sudo command, you can run programs and execute commands with the security privileges of another user. By default, the sudo command allows system …

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Installing Python 3 and Setting up a Local Programming Environment on Ubuntu 16.04

Introduction Python is an interactive, object-oriented, and simple programming language which can be used for a plethora of different programming projects. A fun fact is that Python is not named after the python snake but after the comedy television show Monty Python’s Flying Circus. Python is a great language to get started with programming and a great choice for experienced …

Manage Processes in Linux- a Guide on Using ps, kill, and nice

Introduction When most of us use computers, we run various applications. These applications are run by programs called servers or operating systems. There are many different kinds of servers that work in different ways. One of them is Linux. Linux runs applications in the form of processes. In Linux, we refer to each application as a ‘process’. The server is …

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The Basics of UFW: Learning the Essential Firewall Commands 

Introduction UFW stands for uncomplicated firewall. It is a frontend platform that enables you to easily manage your firewall functions and commands. You get UFW as a default option with your Ubuntu server. Maximizing the potential of the commands and functions of the firewall can be difficult if you are not already familiar with the tool. Our goal is to …