Como Instalar o Webmin no Ubuntu 18.04
O autor selecionou o Tech Education Fund para receber uma doação de $100 como parte do programa Write for DOnations. O Webmin é um painel de controle baseado na Web para…
How To Install Rails and nginx with Passenger on Ubuntu
This tutorial explains how to install Ruby, how to install any required dependancies, how to install Ruby Gems, how to install Rails, how to install Phusion Passenger, and how to use Passenger to install nginx. Passenger is an app server that allows you to deploy your rails application in production. This tutorial describes how to run Rails with nginx using passenger.
Oracle Linux 8 — openssh — vulnerability — patch and remediation guide (ELSA-2024-3166)
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2024-3166 Related CVEs: CVE-2020-15778 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 MongoDB from the Default APT Repositories on Ubuntu 20.04
MongoDB is a free and open-source NoSQL document database used commonly in modern web applications. By following this tutorial you’ll install MongoDB on an Ubuntu 20.04 server using the default APT repositories. You’ll also learn how to manage its service and optionally enable remote access.
CSS will-change Property: When and When Not to Use It
Understand the will-change property in CSS and how it can be use to make your animations and transitions more performant by giving hints to the browser.
How to Configure Mandatory Access Control on Debian 9
Introduction This guide explains how to Configure Mandatory Access Control on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with the […]
Oracle Linux 8 — java-1.8.0-openjdk — security and stability fixes — required update (ELSA-2024-0265)
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2024-0265 Related CVEs: CVE-2024-20945 CVE-2024-20918 CVE-2024-20921 CVE-2024-20926 CVE-2024-20952 CVE-2024-20919 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
Arch Linux — podman — vulnerability — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-202009-11 Related CVEs: CVE-2020-14370 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 2.0.6-1. Fixed in: 2.1.0-1. Group: AVG-1233. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]
Docker Containers Cannot Reach Internet
🟠 High ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: Debian 9 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
Ubuntu 14.04 LTS – Apache fails to start because port 80 is in use
🟠 High ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]
