Security Hardening

Windows Server 2019 — KB5063871 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5063871 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5063871 • MSRC update-guide entry Related CVEs: CVE-2025-50177 CVE-2025-53766 CVE-2025-53778 CVE-2025-49751 CVE-2025-49743 CVE-2025-49761 CVE-2025-49762 CVE-2025-50153  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Use after free in Windows […]

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SLES 12 — jakarta-commons-fileupload — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — jakarta-commons-fileupload — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • August 2, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 August 2025 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory RHSA-2025:14177 (see also SUSE bugzilla) Related CVEs: CVE-2025-48976 CVE-2013-2186 CVE-2016-1000031 Upstream summary: Allocation of resources for multipart headers with insufficient limits enabled a DoS vulnerability in Apache Commons FileUpload. This issue affects […]

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Windows Server 2019 — KB5055519 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5055519 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5055519 • MSRC update-guide entry Related CVEs: CVE-2025-26663 CVE-2025-26686 CVE-2025-26670 CVE-2025-27480 CVE-2025-27482 CVE-2025-27491 CVE-2023-40547 CVE-2025-26664  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Use after free in Windows […]

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How to Monitor Disk Usage with df and du on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Monitor Disk Usage with df and du on Oracle Linux 10

Introduction How to Monitor Disk Usage with df and du on Oracle Linux 10 on Oracle Linux 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that […]

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NetBSD 10.0 — ruby-http — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — ruby-http — vulnerability — patch and remediation guide

  • August 1, 2025
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2015-1828 Upstream summary: pkgsrc audit-packages flagged ruby{18,20,21,22,23}-http<0.7.3 for vulnerability class 'man-in-the-middle'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2015-1828 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Common Problems 124099

Oracle Linux 10 – bonded interface fails over poorly because miimon is not configured – Fix & Prevention

  • August 1, 2025
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 1 August 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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NetBSD 10.0 — libsoup24 — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — libsoup24 — vulnerability — patch and remediation guide

  • August 1, 2025
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2011-2524 Upstream summary: pkgsrc audit-packages flagged libsoup24<2.34.2nb1 for vulnerability class 'directory-traversal'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2524 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Common Problems 124052

Oracle Linux 10 SELinux AVC Denials After Custom Application Deployment

  • August 1, 2025
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 1 August 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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How to Set Up VictoriaMetrics on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Set Up VictoriaMetrics on CentOS Stream 10

  • August 1, 2025
  • CentOS
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Introduction This tutorial demonstrates how to Set Up VictoriaMetrics on CentOS Stream 10 on CentOS Stream 10. 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 CentOS Stream 10 system with the default […]

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How to Install Grafana 11 on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Grafana 11 on RHEL 10

  • August 1, 2025
  • Linux
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Introduction Setting up install grafana 11 on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install Grafana 11 on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the […]

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