Kernel Drivers

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

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2022-9710)

  • July 18, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 18 July 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9710 Related CVEs: CVE-2022-2588 CVE-2022-2153 CVE-2022-29901 CVE-2022-21505 CVE-2022-23816 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 Use svmon for Memory Analysis on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use svmon for Memory Analysis on IBM AIX 7.3

  • July 17, 2022
  • IBM AIX
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Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use svmon for memory analysis on IBM AIX 7.3 […]

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Common Problems 112924

Windows Server 2016 — Fine-grained PSO not applied to expected users in the protected group — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 July 2022 Affected versions: Windows Server 2016 📖 ~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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How to Configure Persistent Volumes in Kubernetes on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Persistent Volumes in Kubernetes on Debian 11

  • July 17, 2022
  • Linux
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Introduction Deploying configure persistent volumes in kubernetes on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure […]

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How to Use IBM Performance Inspector on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use IBM Performance Inspector on IBM AIX 7.3

  • July 16, 2022
  • IBM AIX
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Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use ibm performance inspector on IBM AIX 7.3 with […]

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

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2022-9413)

  • July 16, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 16 July 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9413 Related CVEs: CVE-2022-1729 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 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel — vulnerability — patch and remediation guide (ELSA-2025-6966)

  • July 16, 2022
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 16 July 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-6966 Related CVEs: CVE-2022-48969 CVE-2022-48989 CVE-2022-49006 CVE-2022-49014 CVE-2022-49029 CVE-2022-49883 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 Install Icinga2 on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Icinga2 on Debian 11

  • July 16, 2022
  • Linux
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Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up install icinga2 on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and the resulting […]

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Common Problems 120688

Debian 11 NFS Mount Timeout on Application Nodes

  • July 15, 2022
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 15 July 2022 Affected versions: Debian 11 📖 ~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 Consul Service Mesh on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Consul Service Mesh on Debian 11

  • July 15, 2022
  • Linux
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Introduction Deploying set up consul service mesh on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure […]

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