Kernel Drivers

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-9273)

• May 31, 2023
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 31 May 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9273 Related CVEs: CVE-2021-22600 CVE-2021-26401 CVE-2022-0617 CVE-2022-23960 CVE-2022-22942 CVE-2022-1016 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 9 – Common Problem 002 – Diagnosis and Fix

• May 30, 2023
• Linux
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🔴 Critical   ⏱ 5–30 min  Last verified: 30 May 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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Windows Server 2022 — IIS HTTPS binding fails after SSL certificate renewal on Server 2022 — Fix & Prevention

• May 30, 2023
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 30 May 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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Amazon Linux 2 — kernel-livepatch-4.14.318-240.529 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

• May 30, 2023
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2023-148 Related CVEs: CVE-2023-3609 CVE-2023-3776 Upstream summary: A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will […]

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How to Configure BitLocker Drive Encryption on Windows Server 2022

• May 30, 2023
• Tutorials
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How to Set Up ASP.NET Core with IIS on Windows Server 2022 ASP.NET Core applications are self-contained by default and use their own built-in Kestrel web server. When deploying to IIS on Windows Server 2022, IIS can act as a reverse proxy in front of Kestrel (out-of-process hosting) or host the application directly within the […]

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How to Configure Nginx Rate Limiting on Oracle Linux 9

• May 29, 2023
• Oracle Linux
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Introduction How to Configure Nginx Rate Limiting 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 […]

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Windows Server 2022 – Hyper-V virtual switch binding lost after NIC driver update – Fix & Prevention

• May 29, 2023
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 29 May 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 Configure Windows Server 2022 ReFS File System

• May 28, 2023
• Tutorials
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What Is Gitea and Why Run It on Windows Server 2022 Gitea is a lightweight, self-hosted Git service written in Go. It provides a GitHub-style web interface for browsing repositories, reviewing pull requests, managing organizations, and running basic CI/CD through Gitea Actions. Because it ships as a single binary with no runtime dependencies, it is […]

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How to Configure IPsec Transport Mode for Server-to-Server Encryption on Windows Server 2022

• May 27, 2023
• Tutorials
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Understanding IPsec Transport Mode vs Tunnel Mode IPsec (Internet Protocol Security) is a suite of protocols that authenticates and encrypts IP packets to provide secure communication over IP networks. Windows Server 2022 supports IPsec natively through Windows Defender Firewall with Advanced Security, and understanding the difference between transport mode and tunnel mode is foundational before […]

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How to Set Up STONITH for Cluster Fencing on Oracle Linux 9

• May 26, 2023
• Oracle Linux
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Introduction How to Set Up STONITH for Cluster Fencing 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 […]

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