February 2020 - Page 2 of 64

Common Problems 114979

RHEL 8 – chronyd Unsynchronized Time Causes Authentication Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 19 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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How to Configure Smart Card Authentication on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Smart Card Authentication on IBM AIX 7.2

Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure smart card authentication on ibm aix 7.2 on […]

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Ubuntu 16.04 — rake — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — rake — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4295-1 Related CVEs: CVE-2020-8130 Upstream summary: It was discovered that Rake incorrectly handled certain files. An attacker could use this issue to possibly execute arbitrary commands. Table of contents Symptom […]

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Ubuntu 16.04 — dovecot — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — dovecot — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4674-1 Related CVEs: CVE-2020-24386 CVE-2020-25275 CVE-2020-12100 CVE-2020-12673 CVE-2020-12674 CVE-2019-11500 CVE-2019-7524 CVE-2019-3814  +4 more Upstream summary: It was discovered that Dovecot incorrectly handled certain imap hibernation commands. A remote authenticated attacker […]

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How to Configure Privileged Access Management in Active Directory on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Privileged Access Management in Active Directory on Windows Server 2016

How to Configure Windows Server 2016 Privileged Access Management Privileged Access Management (PAM) is an Active Directory feature introduced with Windows Server 2016 that provides a time-based, just-in-time approach to granting privileged group memberships. Instead of users having permanent membership in groups like Domain Admins, PAM allows them to request temporary membership for the duration […]

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Cómo instalar Docker Compose en Debian 10 — step-by-step Docker tutorial on Progressive Robot

Cómo instalar Docker Compose en Debian 10

Docker es una excelente herramienta para automatizar la implementación de aplicaciones de Linux dentro de contenedores de software, pero para aprovechar plenamente su potencial cada componente de una aplicación debería ejecutarse en su propio…

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SLES 15 — evince — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — evince — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:14141-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-1010006 CVE-2010-2640 CVE-2010-2641 CVE-2010-2642 CVE-2010-2643 CVE-2017-1000083 CVE-2019-11459 Upstream summary: Evince 3.26.0 is affected by buffer overflow. The impact is: DOS / Possible code execution. The […]

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Cómo crear bucles for en Go — step-by-step Programming tutorial on Progressive Robot

Cómo crear bucles for en Go

En el ámbito de la programación informática, un bucle es una estructura de código que forma un ciclo para ejecutar parte de un código de forma repetida, a menudo hasta que se cumple una condición. Usar bucles en el terreno de la programación informática le permite…

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