DevOps

How to install UFW on Debian 11/Ubuntu 22.04

Manual

UFW (Uncomplicated Firewall) is a network firewall tool for Linux-based operating systems that focuses on simplifying firewall configuration. UFW provides an easy-to-use user interface for managing firewall rules, allowing system administrators to easily c (...)

How to use Cron to automate tasks in Ubuntu 22.04/Debian 11

Manual

Cron is a tool used to automate tasks in Unix-based operating systems, such as Ubuntu 22.04 and Debian 11. With Cron, you can schedule commands to run automatically at specific times of the day, week, or month. In this manual, we will explain how to use Cr (...)

Difference between PHP MAIL and PHP MAILER

Manual

PHP Mail and PHP Mailer are two very useful tools for sending emails from web applications developed in PHP. PHP Mail PHP Mail is a PHP function that allows sending emails from a web application. To use PHP Mail, you will need the following: A web server (...)

How to install WordPress on Ubuntu 22.04 with LEMP

Manual

We show you the detailed manual on how to install WordPress on Ubuntu 22.04 with LEMP: Step 1: Update the operating system Before starting to install WordPress, it is important to ensure that the Ubuntu 22.04 operating system is up to date. Open the termin (...)

How to create a web application using Flask in Python 3

Manual

Flask is a lightweight and flexible web framework for Python that allows building web applications quickly and easily. It focuses on simplicity and modularity, making it easy to learn and use for both small and large projects. It does not require additiona (...)

How to install Ruby on Rails with rbenv on Ubuntu 22.04

Manual

rbenv is a tool for managing multiple versions of Ruby on the same system. It allows you to install, change, and manage different versions of Ruby, which is useful for projects that require specific versions of Ruby or for working with different projects t (...)

How to configure SSH keys in Ubuntu 22.04/Debian 10

Manual

Introduction SSH is a secure network protocol used for the remote management of servers. It is a secure way to connect to a server and perform operations on it without the need to be physically present at the server. SSH keys are used to authenticate to a (...)

How to create a new user and grant permissions in MySQL

Manual

Below we show you a detailed manual on how to create a new user and grant permissions in MySQL: Step 1: Log in to MySQL To create a new user and grant permissions in MySQL, you must log in to your MySQL server. You can do this in several ways, but a common (...)

How to remove Docker images, containers, and volumes

Manual

Docker is a container virtualization tool that allows developers to create, deploy, and run applications in different environments quickly and efficiently. Docker containers are software environments that contain everything needed to run an application, in (...)

How to scale Node.js applications with clustering

Manual

Introduction Node.js is a server-side JavaScript runtime environment used to create scalable and high-speed web applications. Scalability is a critical factor for any web application that intends to handle large volumes of traffic. One of the most popular (...)