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How to Enable Brotli Compression in Nginx on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Enable Brotli Compression in Nginx on FreeBSD 12

Introduction How to Enable Brotli Compression in Nginx on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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O Ecossistema do Docker: Rede e Comunicação — step-by-step Docker tutorial on Progressive Robot

O Ecossistema do Docker: Rede e Comunicação

Ao construir sistemas distribuídos para servir contêineres Docker, comunicação e rede tornam-se extremamente importantes. A arquitetura orientada a serviço, inegavelmente, depende muito de comunicação entre os componentes, de forma a funcionar corretamente. Neste guia, vamos…

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Alpine Linux edge — gtk-vnc — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — gtk-vnc — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.7.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gtk-vnc 0.7.0-r0 Related CVEs: CVE-2017-5884 CVE-2017-5885 Upstream summary: Alpine community repository for vedge ships gtk-vnc 0.7.0-r0 which addresses CVE-2017-5884. Table of contents Symptom & Impact […]

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Como usar o pacote Flag em Go — step-by-step Programming tutorial on Progressive Robot

Como usar o pacote Flag em Go

Os utilitários de linha de comando raramente são úteis, pois não vêm prontos para usar e necessitam de configuração adicional. Padrões bons são importantes, mas os utilitários úteis precisam aceitar a configuração dos usuários. Na maioria das plataformas, os utilitários de linha…

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Oracle Linux 8 — irssi — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — irssi — vulnerability — patch and remediation guide (ELSA-2020-1616)

🟢 Low   ⏱ 5–15 min  Last verified: 1 October 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1616 Related CVEs: CVE-2019-13045 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Configure ACLs on Ext4 File Systems on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure ACLs on Ext4 File Systems on Debian 9

Introduction This guide explains how to Configure ACLs on Ext4 File Systems 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 […]

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Common Problems 118031

Ubuntu 18.04 Audio Output Missing After Restart

🟡 Medium   ⏱ 5–30 min  Last verified: 30 September 2019 📖 ~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 & Cross-Refs References & Further […]

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