Security Hardening

Ubuntu 14.04 — tiff — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — tiff — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 17 November 2025 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8113-1 Related CVEs: CVE-2025-61144 CVE-2025-61143 CVE-2025-8961 CVE-2025-9165 CVE-2025-9900 CVE-2025-8177 CVE-2025-8851 CVE-2025-8534  +12 more Upstream summary: It was discovered that LibTIFF did not properly handle memory when processing certain images. An […]

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How to Set Up SSH Two-Factor Authentication on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Set Up SSH Two-Factor Authentication on SLES 16

Introduction This tutorial covers How to Set Up SSH Two-Factor Authentication on SLES 16 on SLES 16. SLES 16 (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 16 system is up to date: […]

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How to Configure Custom Metrics with Prometheus on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Configure Custom Metrics with Prometheus on SLES 16

Introduction This tutorial covers How to Configure Custom Metrics with Prometheus on SLES 16 on SLES 16. SLES 16 (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. Step 1 — Install Prometheus zypper install -y golang-github-prometheus-prometheus Step […]

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Windows Server 2025 — KB5062618 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2025

Windows Server 2025 — KB5062618 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read  •  Source: Microsoft KB5062618 • MSRC update-guide entry Related CVEs: CVE-2025-47980 CVE-2025-55230 CVE-2025-49757 CVE-2025-47971 CVE-2025-47976 CVE-2025-47984 CVE-2025-47985 CVE-2025-47986  +12 more Affected components: Windows Server 2025 Microsoft summary: Exposure of sensitive information to an unauthorized actor […]

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How to Implement Mandatory Access Control on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Implement Mandatory Access Control on SLES 16

Introduction This tutorial covers How to Implement Mandatory Access Control on SLES 16 on SLES 16. SLES 16 (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 16 system is up to date: zypper […]

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Common Problems 124101

MariaDB Fails Recovery Because InnoDB Log File Size Mismatch

🔴 Critical   ⏱ 5–30 min  Last verified: 16 November 2025 Affected versions: Oracle Linux 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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FreeBSD 12 — py311-libxml — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py311-libxml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 November 2025 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libxml2 — Out-of-bounds memory access Related CVEs: CVE-2025-32414 Upstream summary: [email protected] reports: In libxml2 before 2.13.8 and 2.14.x before 2.14.2, out-of-bounds memory access can occur in the Python API (Python […]

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How to Set Up K3s Lightweight Kubernetes on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Set Up K3s Lightweight Kubernetes on SLES 16

Introduction This tutorial covers How to Set Up K3s Lightweight Kubernetes on SLES 16 on SLES 16. SLES 16 (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. Step 1 — Disable Swap swapoff -a sed -i ‘/ […]

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FreeBSD 12 — py313t-setuptools — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py313t-setuptools — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 November 2025 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-setuptools — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Related CVEs: CVE-2025-47273 Upstream summary: https://github.com/pypa/setuptools/security/advisories/GHSA-5rjg-fvgr-3xxf reports: setuptools is a package that allows users to download, build, […]

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