Kernel Drivers

Common Problems 111128

Windows Server 2025 — Account lockout policy too aggressive causing false lockouts — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 30 July 2025 Affected versions: Windows Server 2025 📖 ~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 Install Icinga 2 on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Icinga 2 on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install icinga 2 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Icinga 2 on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites You will need: […]

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Common Problems 111108

Windows Server 2025 — User login fails with Event ID 4625 bad password despite correct password — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 29 July 2025 Affected versions: Windows Server 2025 📖 ~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 Mount NFS Shares on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Mount NFS Shares on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying mount nfs shares both straightforward and auditable. This tutorial covers the complete procedure for how to Mount NFS Shares on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites Before you begin, […]

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Oracle Linux 10 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — kernel — vulnerability — patch and remediation guide (ELSA-2025-15447)

🟠 High   ⏱ 15–60 min  Last verified: 29 July 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-15447 Related CVEs: CVE-2025-37803 CVE-2025-22097 CVE-2025-38350 CVE-2025-38449 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2025-20520)

🟠 High   ⏱ 15–60 min  Last verified: 29 July 2025 Affected versions: Oracle Linux 9 📖 ~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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Common Problems 111072

Windows Server 2025 — IIS port 80 conflict with another application on Windows Server 2025 — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 29 July 2025 Affected versions: Windows Server 2025 📖 ~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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Common Problems 127048

CentOS Stream 10 – Common Problem 159 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 28 July 2025 Affected versions: CentOS Stream 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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Common Problems 124179

Oracle Linux 10 kdump Does Not Capture vmcore After Kernel Panic

🔴 Critical   ⏱ 5–30 min  Last verified: 28 July 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 — xenkernel413 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — xenkernel413 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2022-26362 CVE-2022-26363 CVE-2022-26364 CVE-2020-28368 CVE-2022-26356 CVE-2022-33745 CVE-2022-33748 CVE-2020-25595  +12 more Upstream summary: pkgsrc audit-packages flagged xenkernel413<4.13.4nb1 for vulnerability class 'privilege-escalation'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2022-26362 Table of contents Symptom & Impact Environment […]

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