Kernel Drivers

How to Configure Caddy Web Server on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Configure Caddy Web Server on CentOS Stream 10

Introduction How to Configure Caddy Web Server on CentOS Stream 10 on CentOS Stream 10 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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Common Problems 111201

Windows Server 2025 — DCPromo fails during DNS delegation creation on Windows Server 2025 — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 May 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 Set Up Windows Server Backup on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Set Up Windows Server Backup on Windows Server 2025

How to Set Up Windows Server Backup on Windows Server 2025 Windows Server Backup is the built-in backup solution included with Windows Server 2025 at no additional cost. While third-party tools offer more advanced features, Windows Server Backup provides a reliable, native option for protecting critical data, system state, and entire server volumes. Whether you […]

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

Oracle Linux 9 — kernel — vulnerability — patch and remediation guide (ELSA-2025-13602)

🟡 Medium   ⏱ 10–30 min  Last verified: 20 May 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-13602 Related CVEs: CVE-2025-38079 CVE-2025-38292 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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Common Problems 111174

Windows Server 2025 — Driver update rollback reintroduces vulnerability patched in newer version — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 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 Create and Manage Hyper-V Virtual Machines on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Create and Manage Hyper-V Virtual Machines on Windows Server 2025

How to Create and Manage Hyper-V Virtual Machines on Windows Server 2025 Once the Hyper-V role is installed on Windows Server 2025, the day-to-day work of a virtualisation administrator revolves around creating, configuring, and maintaining virtual machines. Hyper-V provides a rich PowerShell module that makes it straightforward to automate every aspect of VM lifecycle management […]

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

Oracle Linux 9 — kernel — vulnerability — patch and remediation guide (ELSA-2026-2722)

🟡 Medium   ⏱ 10–30 min  Last verified: 19 May 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-2722 Related CVEs: CVE-2023-53034 CVE-2025-40064 CVE-2025-40304 CVE-2025-40322 CVE-2025-68349 CVE-2025-68811 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 — 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-2026-50095)

🟠 High   ⏱ 15–60 min  Last verified: 19 May 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50095 Related CVEs: CVE-2025-38566 CVE-2025-38571 CVE-2025-40215 CVE-2025-40258 CVE-2025-68209 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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NetBSD 10.0 — xentools3 — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — xentools3 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged xentools3-[0-9]* for vulnerability class 'security-bypass'. Reference: http://secunia.com/advisories/32064/ Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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Amazon Linux 2 — kernel-livepatch-4.14.355-276.639 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.355-276.639 — multiple vulnerabilities (3 CVEs) — 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-2025-243 Related CVEs: CVE-2023-53137 CVE-2025-21811 CVE-2025-21920 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: ext4: Fix possible corruption when moving a directory (CVE-2023-53137) Table of contents […]

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