Troubleshooting

Arch Linux — systemd — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — systemd — multiple vulnerabilities (15 CVEs) — patch and remediation guide

  • March 14, 2020
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201811-11 Related CVEs: CVE-2018-15688 CVE-2018-15687 CVE-2018-15686 CVE-2017-9445 CVE-2020-1712 CVE-2019-6454 CVE-2018-16865 CVE-2018-16864  +7 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 239.2-1. Fixed in: 239.300-1. Group: AVG-789. Table of contents […]

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Common Problems 121534

Debian 9 – update-initramfs fails with missing modules or hooks

  • March 13, 2020
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 13 March 2020 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 & […]

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Common Problems 118066

Ubuntu 18.04 LTS – snapd refresh stuck and snap applications fail to update – Fix & Prevention

  • March 13, 2020
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 13 March 2020 Affected versions: Ubuntu 18.04 LTS 📖 ~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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FreeBSD 12 — webtrees — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — webtrees — security advisory — patch and remediation guide

  • March 13, 2020
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 13 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: webtrees — vulnerability Upstream summary: Webtrees reports: GEDCOM imports containing errors and HTML displayed unescaped. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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How to Configure Node Exporter on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure Node Exporter on SLES 15

Introduction This tutorial covers How to Configure Node Exporter on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper refresh […]

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Common Problems 113023

Windows Server 2016 — IIS W3SVC service fails after certificate change — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 March 2020 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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Common Problems 112393

Windows Server 2019 — DNS Server service intermittently stops responding after cumulative update on Windows Server 2019 — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 March 2020 Affected versions: Windows Server 2019 📖 ~2 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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FreeBSD 12 — php56-fileinfo — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php56-fileinfo — security advisory — patch and remediation guide

  • March 13, 2020
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 13 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Upstream summary: The PHP Group reports: Fileinfo: Fixed bug #71527 (Buffer over-write in finfo_open with malformed magic file). mbstring: Fixed bug #71906 (AddressSanitizer: negative-size-param (-1) in […]

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How to Use sudo on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use sudo on IBM AIX 7.1

  • March 13, 2020
  • IBM AIX
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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 sudo on ibm aix 7.1 on IBM AIX […]

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