Kernel Drivers

Common Problems 124487

Oracle Linux 9 – Common Problem 003 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 22 March 2023 Affected versions: Oracle Linux 9 📖 ~3 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 BGP Routing with RRAS on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure BGP Routing with RRAS on Windows Server 2016

How to Set Up BGP Routing on Windows Server 2016 Border Gateway Protocol (BGP) is the routing protocol that powers the internet. It is a path-vector protocol used to exchange routing information between autonomous systems (AS). Windows Server 2016 includes a software-based BGP implementation as part of the Remote Access role, which can be used […]

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

How to Set Up RADIUS Authentication on Windows Server 2022

Introduction to Fine-Grained Password Policies In legacy Active Directory deployments, a single password policy applied to all users within a domain through the Default Domain Policy GPO. This was limiting for organizations that needed stricter controls on privileged accounts such as domain administrators or service accounts while maintaining a more relaxed policy for regular users. […]

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Common Problems 111801

Windows Server 2022 — SQL Server backup job failing due to insufficient disk space on backup target — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 March 2023 Affected versions: Windows Server 2022 📖 ~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 File System Quotas on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure File System Quotas on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure file system quotas 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 and […]

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How to Configure Fine-Grained Password Policies on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Fine-Grained Password Policies on Windows Server 2022

Overview: Promoting a Server to Domain Controller Adding a second (or additional) domain controller to an existing Active Directory domain is one of the most critical operations an administrator performs. A single-DC environment is a single point of failure — if that DC goes down, authentication, Group Policy application, DNS resolution, and file access all […]

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Oracle Linux 9 — kernel — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel — security and stability fixes — required update (ELSA-2024-3306)

🟡 Medium   ⏱ 10–30 min  Last verified: 20 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3306 Related CVEs: CVE-2024-26643 CVE-2024-26642 CVE-2024-26804 CVE-2024-26673 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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How to Set Up Lynis Security Auditing on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up Lynis Security Auditing on Oracle Linux 9

Introduction How to Set Up Lynis Security Auditing 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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Common Problems 111771

Windows Server 2022 — SQL Server login failure after AD group membership cache delay on Server 2022 — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 March 2023 Affected versions: Windows Server 2022 📖 ~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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SLES 15 — kernel-azure — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — kernel-azure — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 March 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3897-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-3623 CVE-2021-4159 Upstream summary: A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this vulnerability is the function follow_page_pte […]

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