Many web applications today insist on users' having strong passwords, either by ensuring a minimum password length or some combination of alphanumeric characters and symbols in the password. In this tutorial, we will ...

In order to ensure that the form element of your web application is returning valid data, it is helpful to build automated validation into your code. This is true in React as well; creating form validation early on ca...

JavaScript includes several functions for working with arrays that go beyond the for loop. You may have used these functions in your own projects and wondered how they work and why you'd use one over another. There's ...

Python is one of the most popular and easy to learn languages, which is why it is often one of the first languages you learn. Let's see how to work with and run Python inside of Visual Studio Code. In this tutorial yo...

OpenFaaS is an open-source framework for implementing the serverless architecture on Kubernetes, using Docker containers for storing and running functions. In this tutorial, you will deploy OpenFaaS to your DigitalOce...

Ampache is an open-source music streaming server that allows you to host and manage your digital music collection on your own server. Ampache can stream your music to your computer, smartphone, tablet, or smart TV. In...

A “LAMP” stack is a group of open source software that is typically installed together to enable a server to host dynamic websites and web apps written in PHP. This term is an acronym which represents the Linux operat...

Kubernetes Ingresses offer you a flexible way of routing traffic from beyond your cluster to internal Kubernetes Services. Helm https://helm.sh/ is a package manager for managing Kubernetes. In this guide, you'll set ...

Building a Certificate Authority (CA) will enable to you configure, test, and run programs that require encrypted connections between a client and server. With a private CA, you can issue certificates for users, serve...

Docker is an Open Source application that allows administrators to create, manage, deploy, and replicate applications using containers. Flask is a web micro-framework that is built on Python. In this tutorial, you wil...

In this guide, we will cover how to create user accounts, assign sudo privileges, and delete users on a CentOS 8 server.

In this tutorial, we will explain how to install the latest version of MariaDB on a CentOS 8 server.

PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. It is a popular choice for many small and large projects and has the advantage of bein...

PF is a renown firewall application that is maintained upstream by the security-driven OpenBSD project. It is more accurately expressed as a packet filtering tool, hence the name, and it is known for its simple syntax...

In this guide, we will show you how to set up a firewalld firewall for your CentOS 8 server, and cover the basics of managing the firewall with the firewall-cmd administrative tool.

Building a private Certificate Authority on Debian 10 will enable you to configure, test, and run programs that require encrypted connections between a client and a server. With a private CA, you can issue certificate...

SimpleSAMLphp is an open-source PHP authentication application that provides support for SAML 2.0. SAML (Security Assertion Markup Language)* is a secure XML-based communication mechanism for exchanging authentication...

Helm is a package manager for Kubernetes that allows developers and operators to more easily configure and deploy applications on Kubernetes clusters. In this tutorial, you will set up Helm 3 and use it to install, re...

The Apache web server uses virtual hosts to manage multiple domains on a single instance. Similarly, PHP-FPM uses a daemon to manage multiple PHP versions on a single instance. Together, you can use Apache and PHP-FPM...

Vuls is an open-source, agentless vulnerability scanner written in Go. It automates security vulnerability analysis of the software installed on a system. In this tutorial, you'll deploy Vuls to an Ubuntu 18.04 server...