How To Change the Title and Metadata with React Helmet
Learn how to use the React Helmet component to dynamically set header tags for a React app.
How To Modify CSS Classes in JavaScript
In this tutorial, you will learn how to modify CSS classes using the JavaScript classList object for your DOM Manipulation project.
Ubuntu 18.04 — fastd — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 21 December 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4718-1 Related CVEs: CVE-2020-27638 Upstream summary: It was discovered that fastd incorrectly handled certain packets. An attacker could possibly use this issue to cause a denial of service. Table of […]
Configuración inicial del servidor con Ubuntu 20.04
Cuando crea por primera vez un nuevo servidor Ubuntu 20.04, debe realizar algunos pasos de configuración importantes como parte de la configuración básica. Estos pasos aumentarán la seguridad y utilidad de su servidor, y le brindará una base sólida para las siguientes…
How To Write a Serverless Function
Serverless architecture allows backend web services to be implemented on an as-needed basis. Rather than needing to maintain your own server configuration, architecting your software for serverless providers can minimize the overhead involved. Serverless applications are typically deployed from a Git repository into an environment that can scale up or down as needed. This tutorial will cover some best practices for writing an example serverless function.
Oracle Linux 8 — libarchive — vulnerability — patch and remediation guide (ELSA-2020-0271)
🟠 High ⏱ 15–60 min Last verified: 21 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-0271 Related CVEs: CVE-2019-18408 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
How To Install Node.js and Create a Local Development Environment on Windows
Node.js is a popular JavaScript runtime environment that can be used with front-end Javascript libraries to build full-stack applications. In this tutorial, you will set up a local Node.js programming environment for your Windows computer.
How to Configure OpenVPN Server on FreeBSD 12
Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure openvpn server on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. […]
How To Handle Async Data Loading, Lazy Loading, and Code Splitting with React
In JavaScript development with the React library, asynchronous programming presents unique problems. When you use React functional components for example, asynchronous functions can create infinite loops. In this tutorial, you’ll find out how to avoid asynchronous programming bugs, load data with the useEffect React Hook, and split your code for on-demand lazy loading using React lazy and Suspense.
Configuration Management 101: Writing Ansible Playbooks
This tutorial will walk you through the process of creating an automated server provisioning using Ansible, a configuration management tool that provides a complete automation framework and orchestration capabilities. We will focus on the language terminology, syntax and features necessary for creating a simplified example to fully automate the deployment of an Ubuntu 18.04 web server using Apache.
