A Quick Introduction to Hyperapp
Want to try out a different and lightweight frontend JavaScript framework? Hypeapp is a tiny (1 kB) framework that you might want to explore!
How to Configure Persistent Volumes in Kubernetes on Debian 10
Introduction This guide explains how to Configure Persistent Volumes in Kubernetes on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with […]
FreeBSD 12 — py39-Flask-Cors — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: py-Flask-Cors — directory traversal vulnerability Related CVEs: CVE-2020-25032 Upstream summary: praetorian-colby-morgan reports: An issue was discovered in Flask-CORS (aka CORS Middleware for Flask) before 3.0.9. It allows ../ directory traversal […]
How To Move an Apache Web Root to a New Location on Ubuntu 20.04
In this guide, we’ll show you how to move an Apache document root to a new location which allows you to independently scale storage for different sites.
Ubuntu 14.04 — jquery — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7622-1 Related CVEs: CVE-2020-11023 CVE-2019-11358 CVE-2020-11022 CVE-2012-6708 Upstream summary: It was discovered that jQuery did not correctly handle HTML tags. An attacker could possibly use this issue to execute a […]
How To Call Web APIs with the useEffect Hook in React
In this tutorial, you’ll use the useEffect and useState React Hooks to fetch and display information in a sample application, using JSON server as a local API for testing purposes. You’ll load information when a component first mounts and save customer inputs with an API. You’ll also refresh data when a user makes a change and learn how to ignore API requests when a component unmounts.
How To Add Stimulus to a Ruby on Rails Application
In this tutorial, you will install and use Stimulus to build on an existing Rails application that offers readers information about sharks. The application already has a model for handling shark data, but you will add a nested resource for posts about individual sharks, allowing users to build out a body of thoughts and opinions about sharks. You will use Stimulus to manipulate the position and appearance of posts on the page.
Mutations and Subscriptions in GraphQL
Learn how to set up an advanced GraphQL APIs with Mutations and Subscriptions using the graphql-yoga Node.js library.
Como Criar uma Imagem do Seu Ambiente Linux e Lançá-la na the cloud provider
O recurso Custom Images ou Imagens Personalizadas da the cloud provider lhe permite trazer seu disco virtual personalizado de Linux e Unix-like de um ambiente local ou de outra plataforma de nuvem para a the cloud provider e…
How to Manage System Packages with dnf on RHEL 8
DNF (Dandified YUM) is the default package manager on RHEL 8, replacing the older yum command with improved dependency resolution, transaction history, and modular package support through AppStream. Whether you are installing software, managing module streams, or adding third-party repositories like EPEL, dnf is the single tool for the job. This tutorial covers daily package […]
