Kernel Drivers

Common Problems 111844

Windows Server 2022 — Hyper-V GPU partitioning or DDA assignment fails on host — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 April 2023 Affected versions: Windows Server 2022 📖 ~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 Profile CPU with tprof on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Profile CPU with tprof on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to profile cpu with tprof on ibm aix 7.1 on […]

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Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-7318)

🟠 High   ⏱ 15–60 min  Last verified: 18 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7318 Related CVEs: CVE-2022-2585 CVE-2022-30594 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Set Up Windows Server Backup on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Windows Server Backup on Windows Server 2022

Introduction to Windows Server Backup Windows Server Backup (WSB) is a built-in backup solution included with Windows Server 2022 at no additional cost. While it lacks some advanced features of third-party tools, it provides a reliable mechanism for protecting system state, critical volumes, bare metal recovery data, and individual files. Understanding how to install, configure, […]

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Common Problems 117608

Ubuntu 20.04 LTS – Docker daemon fails to start after package updates

🟠 High   ⏱ 5–30 min  Last verified: 17 April 2023 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 […]

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How to Set Up MongoDB Replica Set on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up MongoDB Replica Set on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up mongodb replica set on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]

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How to Configure Remote Desktop Gateway on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Remote Desktop Gateway on Windows Server 2022

Introduction Docker Compose is a tool for defining and running multi-container Docker applications using a declarative YAML file. On Windows Server 2022, Docker Compose allows you to define complex applications — such as an IIS web server paired with a SQL Server database — in a single docker-compose.yml file, and manage the entire stack with […]

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Amazon Linux 2023 — kernel-livepatch-6.1.12-19.43 — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — kernel-livepatch-6.1.12-19.43 — vulnerability — 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-2023-001 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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Common Problems 114438

SELinux Denials Break Web Application Access

🟡 Medium   ⏱ 5–30 min  Last verified: 16 April 2023 📖 ~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 & Cross-Refs References & Further […]

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Common Problems 111695

Windows Server 2022 IIS App Pool Rapid-Fail Protection Triggered – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 16 April 2023 Affected versions: Windows Server 2022 📖 ~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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