Oracle Linux 9

Oracle Linux 9 — microcode_ctl — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — microcode_ctl — vulnerability — patch and remediation guide (ELSA-2023-12724)

🟡 Medium   ⏱ 10–30 min  Last verified: 6 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12724 Related CVEs: CVE-2022-40982 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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Oracle Linux 9 — sssd — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — sssd — security and stability fixes — required update (ELSA-2024-2571)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2571 Related CVEs: CVE-2023-3758 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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How to Configure Software RAID on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Software RAID on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying configure software raid on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Software RAID on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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Oracle Linux 9 — logrotate — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — logrotate — vulnerability — patch and remediation guide (ELSA-2022-8393)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-8393 Related CVEs: CVE-2022-1348 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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Oracle Linux 9 — jackson-annotations, jackson-core, jackson-databind, jackson-jaxrs-providers, and jackson-modules-base — vulnerability — patch and remedia… — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — jackson-annotations, jackson-core, jackson-databind, jackson-jaxrs-providers, and jackson-modules-base — vulnerability — p… (ELSA-2025-12280)

🟠 High   ⏱ 15–60 min  Last verified: 4 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-12280 Related CVEs: CVE-2025-52999 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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How to Configure Redis Sentinel on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Redis Sentinel on Oracle Linux 9

Introduction This tutorial demonstrates how to Configure Redis Sentinel on Oracle Linux 9 on Oracle Linux 9. 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 9 system with the default […]

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Oracle Linux 9 — Error Messages Displayed While Removing RHCK — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Error Messages Displayed While Removing RHCK

🟠 High   ⏱ 5–30 min  Last verified: 3 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug OLRNT-concept_qgs_w3h_jzb 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 […]

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How to Set Up Uptime Kuma on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up Uptime Kuma on Oracle Linux 9

Introduction Setting up set up uptime kuma on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Uptime Kuma on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to […]

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Oracle Linux 9 — Kdump Might Fail on Some AMD Hardware — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Kdump Might Fail on Some AMD Hardware

🟠 High   ⏱ 5–30 min  Last verified: 2 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug 31274238 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 […]

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How to Tune Kernel Parameters with sysctl on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Tune Kernel Parameters with sysctl on Oracle Linux 9

Introduction How to Tune Kernel Parameters with sysctl on Oracle Linux 9 on Oracle Linux 9 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 […]

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