Introduction How to Configure a VXLAN Overlay Network on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 […]
🟠 High ⏱ 5–30 min Last verified: 10 November 2021 Affected versions: Windows Server 2016 📖 ~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 […]
Introduction This guide explains how to Configure ModSecurity WAF with Apache2 on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with […]
How to Build PowerShell Script Modules on Windows Server 2012 R2 PowerShell script modules are the standard packaging mechanism for distributing reusable functions, workflows, and cmdlets within an organization. A script module is simply a .psm1 file — a PowerShell script that defines functions and controls which of them are exported for use by consumers […]
How to Configure DFS Replication for File Server Redundancy on Windows Server 2012 R2 Distributed File System Replication (DFSR) is a built-in Windows Server 2012 R2 technology that provides multi-master, high-efficiency file replication between two or more servers. Unlike earlier FRS-based replication, DFSR uses the Remote Differential Compression (RDC) algorithm to replicate only changed portions […]
🟠 High ⏱ 5–30 min Last verified: 2 November 2021 Affected versions: Windows Server 2016 📖 ~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 […]
How to Export and Import Hyper-V Virtual Machines on Windows Server 2012 R2 Exporting and importing virtual machines is a fundamental Hyper-V administrative skill used for VM backup, migration between hosts, cloning, and archiving. Windows Server 2012 R2 significantly improved the export and import workflow compared to previous versions — exports now occur without needing […]
🟡 Medium ⏱ 5–30 min Last verified: 28 October 2021 Affected versions: Windows Server 2012 R2 📖 ~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 […]
How to Set Up VLAN Support on Windows Server 2012 R2 Virtual LANs (VLANs) allow network traffic to be segmented at Layer 2, creating separate broadcast domains over a shared physical network infrastructure. On Windows Server 2012 R2, VLAN support can be implemented at multiple levels: on physical network adapters with 802.1Q VLAN tagging, on […]
🟠 High ⏱ 5–30 min Last verified: 25 October 2021 Affected versions: Windows Server 2016 📖 ~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 […]
