March 2021

Oracle Linux 8 — mariadb:10.3 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — mariadb:10.3 — security and stability fixes — required update (ELSA-2022-6443)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6443 Related CVEs: CVE-2022-27376 CVE-2022-27378 CVE-2022-32085 CVE-2021-46661 CVE-2022-27387 CVE-2022-27456 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Gentoo Linux — x11-libs/cairo — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — x11-libs/cairo — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202408-09 Related CVEs: CVE-2019-6461 CVE-2019-6462 CVE-2020-35492 Upstream summary: Multiple vulnerabilities have been discovered in Cairo. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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Common Problems 114076

RHEL 10 XFS Metadata Errors After Unexpected Power Loss

🔴 Critical   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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How to Roll Back a Failed Update on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Roll Back a Failed Update 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 roll back a failed update on ibm aix 7.1 […]

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How to Use AIX Live Application Mobility on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use AIX Live Application Mobility 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 use aix live application mobility on ibm aix 7.1 […]

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How to Set Up High Availability with Pacemaker on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up High Availability with Pacemaker on Oracle Linux 8

Introduction This tutorial demonstrates how to Set Up High Availability with Pacemaker on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system […]

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How to Configure VLAN Tagging on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure VLAN Tagging 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 vlan tagging on ibm aix 7.2 on IBM […]

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Debian 10 — linuxptp — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — linuxptp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-3570 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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Debian 9 — network-manager-ssh — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — network-manager-ssh — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-9355 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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