Class Component Overview in React
Learn how to create class components in React as well as using props and lifecycle hooks.
O Ecossistema do Docker: Serviço de Descoberta e Repositórios de Configuração Distribuídos
Os contêineres fornecem uma solução elegante para aqueles que procuram projetar e implementar aplicativos em larga escala. Embora o Docker forneça a tecnologia real de conteinerização, muitos outros projetos auxiliam no desenvolvimento de ferramentas necessárias para…
FreeBSD 12 — tk-threads — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 22 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: tcl/tk — buffer overflow in ReadImage function Related CVEs: CVE-2007-5137 Upstream summary: A Buffer overflow in the ReadImage function in generic/tkImgGIF.c in Tcl/Tk, allows remote attackers to execute arbitrary code […]
Alpine Linux edge — jbig2enc — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.30-r0 📖 ~4 min read • Source: Alpine secdb entry — jbig2enc 0.30-r0 Related CVEs: CVE-2018-11230 Upstream summary: Alpine community repository for vedge ships jbig2enc 0.30-r0 which addresses CVE-2018-11230. Table of contents Symptom & Impact Environment […]
JavaScript Regular Expressions for Regular People
Overcome your fear of regular expressions (regex) with this gentle introduction to regular expressions in JavaScript.
How To Use Certbot Standalone Mode to Retrieve Let’s Encrypt SSL Certificates on Debian 9
Let’s Encrypt is a service offering free SSL certificates through an automated API. The most popular Let’s Encrypt client is EFF’s Certbot. Certbot offers a variety of ways to validate your…
![Comment configurer l'authentification par mot de passe avec Apache sur Ubuntu 18.04 [Quickstart] — step-by-step Linux tutorial on Progressive Robot](https://www.progressiverobot.com/wp-content/uploads/2026/05/how-to-set-up-password-authentication-with-apache-on-ubuntu-18-04-quickstart-fr-86070-featured.png "Comment configurer l'authentification par mot de passe avec Apache sur Ubuntu 18.04 [Quickstart] 7")
Comment configurer l’authentification par mot de passe avec Apache sur Ubuntu 18.04 [Quickstart]
Ce tutoriel vous guidera à travers les ressources de protection par mot de passe sur un serveur web Apache fonctionnant sous Ubuntu 18.04. L’exécution de ces étapes fournira à votre serveur une sécurité supplémentaire afin que les utilisateurs non autorisés ne puissent pas…
Debian 9 — waagent — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 22 September 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2019-0804 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 Order Query Results in Laravel Eloquent
In a previous part of this series, you learned how to obtain database records using the all() method from within an Eloquent model, sorting the resulting collection with the sortDesc() method. In this guide, you’ll learn how to use the orderBy() method to sort results in the database query itself, which offers more flexibility and performance to order query results at the database level.
How to Install MongoDB on RHEL 8
MongoDB is a leading document-oriented NoSQL database that stores data in flexible JSON-like BSON documents, making it well-suited for applications with evolving schemas, hierarchical data, or high-throughput write workloads. MongoDB is not included in the RHEL 8 AppStream, so you must add the official MongoDB repository before installing. This guide walks through creating the MongoDB […]