Kernel Drivers

Amazon Linux 2023 — kernel-livepatch-6.1.168-202.320 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — kernel-livepatch-6.1.168-202.320 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023LIVEPATCH-2026-144 Related CVEs: CVE-2026-43284 CVE-2026-31431 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags "Dirty Frag" and other […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2025-20520)

🟠 High   ⏱ 15–60 min  Last verified: 16 March 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-20520 Related CVEs: CVE-2025-37752 CVE-2024-53100 CVE-2023-6931 CVE-2024-36350 CVE-2025-38089 CVE-2024-57996 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Write Advanced PowerShell Scripts for Windows Server Administration — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Write Advanced PowerShell Scripts for Windows Server Administration

How to Write Advanced PowerShell Scripts for Windows Server Administration on Windows Server 2025 PowerShell remains the definitive automation language for Windows Server administrators, and Windows Server 2025 brings even greater opportunity to leverage its full depth. Moving beyond basic cmdlet usage into advanced scripting patterns — robust parameter validation, structured error handling, pipeline-friendly functions, […]

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Common Problems 114043

RHEL 10 – SELinux policy update leaves custom module disabled – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 15 March 2026 Affected versions: RHEL 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 Monitor MariaDB Performance with mytop on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Monitor MariaDB Performance with mytop on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying monitor mariadb performance with mytop both straightforward and auditable. This tutorial covers the complete procedure for how to Monitor MariaDB Performance with mytop on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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Rocky Linux 9 — kernel — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — kernel — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RXSA-2026:13565 Related CVEs: CVE-2026-23136 CVE-2026-23270 CVE-2026-31402 CVE-2026-31431 CVE-2026-43077 CVE-2026-43284 CVE-2025-39766 CVE-2025-68741  +12 more Upstream summary: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security […]

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How to Configure XFS Filesystem on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure XFS Filesystem on RHEL 10

Introduction How to Configure XFS Filesystem on RHEL 10 on RHEL 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 the resulting configuration is reproducible and […]

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Oracle Linux 8 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — vulnerability — patch and remediation guide (ELSA-2026-3083)

🟠 High   ⏱ 15–60 min  Last verified: 13 March 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-3083 Related CVEs: CVE-2025-38129 CVE-2025-38248 CVE-2025-40064 CVE-2025-68800 CVE-2026-23074 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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How to Install AIDE for File Integrity on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install AIDE for File Integrity on RHEL 10

Introduction How to Install AIDE for File Integrity on RHEL 10 on RHEL 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 the resulting configuration is […]

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How to Configure Server Blocks in Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Server Blocks in Nginx on RHEL 10

Introduction How to Configure Server Blocks in Nginx on RHEL 10 on RHEL 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 the resulting configuration is […]

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