Kernel Drivers

Common Problems 115072

RHEL 8 auditd Backlog Limit Exceeded and Events Lost

🟠 High   ⏱ 5–30 min  Last verified: 7 March 2023 Affected versions: 8.6 8.7 8.8 8.9 8.10 📖 ~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 […]

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How to Install PostgreSQL on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Install PostgreSQL on Oracle Linux 9

Introduction How to Install PostgreSQL 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 configuration is reproducible […]

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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-2022-9479)

🟠 High   ⏱ 15–60 min  Last verified: 7 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9479 Related CVEs: CVE-2022-23040 CVE-2022-23042 CVE-2022-1048 CVE-2021-4197 CVE-2022-1353 CVE-2022-23039 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 Use Microsoft Graph API with PowerShell on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Use Microsoft Graph API with PowerShell on Windows Server 2022

Introduction to Microsoft Graph API Microsoft Graph API is the unified REST endpoint for accessing data across Microsoft 365 services including Azure Active Directory, Exchange Online, SharePoint, Teams, OneDrive, and Intune. Rather than managing multiple service-specific APIs, Graph consolidates them under a single base URL: https://graph.microsoft.com. On Windows Server 2022, PowerShell combined with the Microsoft.Graph […]

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Oracle Linux 9 — Kernel Issues — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Kernel Issues (9-KERNEL-ISSUES)

🟠 High   ⏱ 5–30 min  Last verified: 6 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug OLRNT-ol9-issues-kernel 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 Consul on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up Consul on Oracle Linux 9

Introduction How to Set Up Consul 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 configuration is […]

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How to Configure Credential Guard on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Credential Guard on Windows Server 2019

Introduction to Credential Guard Credential Guard is a Windows 10/Server 2019 virtualization-based security feature that isolates credential storage from the main operating system. Traditionally, the Local Security Authority Subsystem Service (LSASS) stores and manages credentials including NTLM password hashes, Kerberos tickets, and cleartext passwords (in some configurations). If an attacker gains kernel-level access or exploits […]

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Amazon Linux 2 — kernel-livepatch-4.14.301-225.528 — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.301-225.528 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2023-111 Related CVEs: CVE-2023-26545 Upstream summary: In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure (for registering the sysctl table under a […]

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Amazon Linux 2 — kernel-livepatch-4.14.355-280.679 — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.355-280.679 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2025-275 Related CVEs: CVE-2023-53530 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Use raw_smp_processor_id() instead of smp_processor_id() (CVE-2023-53530) Table of contents Symptom & Impact […]

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How to Configure Advanced Audit Policy on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Advanced Audit Policy on Windows Server 2022

How to Install NGINX on Windows Server 2022 NGINX has a native Windows port that runs as a standard Windows process. While NGINX on Windows has notable limitations compared to its Linux counterpart, it is a capable web server and reverse proxy for development environments, internal tooling, and scenarios where a lightweight HTTP server is […]

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