July 2020

Common Problems 121036

Debian 10 systemd Service Fails with Exit Code 1

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 10 📖 ~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 & […]

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Common Problems 118609

Ubuntu 16.04 snap applications fail to launch

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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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Common Problems 112930

Windows Server 2016 — Boot fails with CRITICAL_SERVICE_FAILED blue screen — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 29 May 2026 Affected versions: Windows Server 2016 📖 ~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 […]

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How to Configure AIX Audit Events on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure AIX Audit Events on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure aix audit events on ibm aix 7.1 on […]

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openSUSE Tumbleweed — libmatio11 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libmatio11 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:10235-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-36428 CVE-2019-17533 CVE-2019-20017 CVE-2019-20052 Upstream summary: matio (aka MAT File I/O Library) 1.5.18 through 1.5.21 has a heap-based buffer overflow in ReadInt32DataDouble (called from ReadInt32Data […]

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How to Enable AppArmor on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Enable AppArmor on Debian 10

Introduction Deploying enable apparmor on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure […]

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Cómo configurar un proyecto Node con Typescript — step-by-step Javascript tutorial on Progressive Robot

Cómo configurar un proyecto Node con Typescript

Escribir JavaScript en el lado del servidor puede ser difícil a medida que crece la base de código. TypeScript es un superconjunto escrito (opcional) de JavaScript que puede ayudar a la hora de crear y gestionar proyectos JavaScript a gran escala. Puede verse como JavaScript con más funciones como escritura estática fuerte, compilación y programación orientada a objetos. Este tutorial explorará como usar el marco [Express](https://expressjs.com/) con TypeScript.

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