Kernel Drivers

How to Set Up a BIND9 DNS Server on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Set Up a BIND9 DNS Server on Oracle Linux 10

Introduction How to Set Up a BIND9 DNS Server on Oracle Linux 10 on Oracle Linux 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 […]

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How to Extend an LVM Logical Volume on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Extend an LVM Logical Volume on Debian 13

Introduction This guide explains how to Extend an LVM Logical Volume on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with […]

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Common Problems 111113

Windows Server 2025 — Roaming profile sync fails with ACL permission error on profile share — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 October 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 Configure Persistent Volumes in Kubernetes on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Persistent Volumes in Kubernetes on Debian 13

Introduction Deploying configure persistent volumes in kubernetes on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure […]

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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-2025-18281)

🟡 Medium   ⏱ 10–30 min  Last verified: 13 October 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-18281 Related CVEs: CVE-2022-50087 CVE-2025-38566 CVE-2025-38571 CVE-2025-39817 CVE-2025-39849 CVE-2025-39841 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 Set Up HTTP/2 in Nginx on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up HTTP/2 in Nginx on Debian 13

Introduction This guide explains how to Set Up HTTP/2 in Nginx on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with […]

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How to Install Redis on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Install Redis on Oracle Linux 10

Introduction How to Install Redis on Oracle Linux 10 on Oracle Linux 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 is reproducible […]

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How to Set Up WireGuard VPN on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up WireGuard VPN on Debian 13

Introduction This guide explains how to Set Up WireGuard VPN on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with the […]

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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-2026-3066)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 October 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-3066 Related CVEs: CVE-2025-38129 CVE-2025-38206 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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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-2025-12746)

🟠 High   ⏱ 15–60 min  Last verified: 12 October 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-12746 Related CVEs: CVE-2025-21727 CVE-2025-21962 CVE-2025-22020 CVE-2022-49788 CVE-2025-37890 CVE-2025-38052 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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