Storage Disk

How to Secure MySQL on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Secure MySQL on Oracle Linux 9

Introduction This tutorial demonstrates how to Secure MySQL on Oracle Linux 9 on Oracle Linux 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 9 system with the default AppStream […]

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How to Automate Oracle Linux 9 Deployment with Kickstart — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Automate Oracle Linux 9 Deployment with Kickstart

Introduction How to Automate Oracle Linux 9 Deployment with Kickstart 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 is […]

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How to Install kubeadm and Set Up a Kubernetes Cluster on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install kubeadm and Set Up a Kubernetes Cluster on Debian 12

Introduction This guide explains how to Install kubeadm and Set Up a Kubernetes Cluster on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 […]

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How to Install and Configure Maven on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install and Configure Maven on Debian 12

Introduction This guide explains how to Install and Configure Maven on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 12 install with the […]

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How to Configure Windows Server 2022 for Compliance — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server 2022 for Compliance

How to Deploy a Node.js Application on Windows Server 2022 Node.js is widely used for building APIs, real-time applications, and server-side rendered web apps. Deploying Node.js on Windows Server 2022 requires a few Windows-specific considerations: process management, IIS as a reverse proxy, environment variable handling, and service installation. This guide covers each step from a […]

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Common Problems 120141

Debian 12 – swap is inactive after reboot and memory pressure spikes

🟡 Medium   ⏱ 5–30 min  Last verified: 24 July 2023 Affected versions: Debian 12 📖 ~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 Ceph Storage Cluster on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Ceph Storage Cluster on Debian 12

Introduction How to Configure Ceph Storage Cluster on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. […]

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How to Configure Windows Server 2022 RDMA Networking — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server 2022 RDMA Networking

How to Use Azure DevOps Pipeline Agent on Windows Server 2022 Azure DevOps Pipelines can run jobs on Microsoft-hosted agents (ephemeral VMs in Azure) or on self-hosted agents that you manage. A self-hosted agent running on Windows Server 2022 gives you control over the build environment — installed tools, network access to on-premises resources, hardware […]

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Common Problems 111854

Windows Server 2022 — VHDX expanded but guest OS still shows unallocated disk space only — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 21 July 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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Common Problems 114625

auditd Overload Generates Excessive Logs And CPU Usage

🟡 Medium   ⏱ 5–30 min  Last verified: 21 July 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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