How to Configure Hyper-V Checkpoints (Snapshots) on Windows Server 2025 Hyper-V checkpoints — formerly known as snapshots — capture the complete state of a virtual machine at a specific point in time, including memory contents, processor state, and disk configuration. On Windows Server 2025, Hyper-V offers two distinct checkpoint types with fundamentally different consistency guarantees: […]
How to Configure SQL Server Agent Jobs on Windows Server 2025 SQL Server Agent is a Windows service that executes scheduled administrative tasks — commonly called jobs — on SQL Server instances running on Windows Server 2025. Agent jobs are the backbone of automated database maintenance: they run backups, rebuild indexes, purge old data, execute […]
How to Set Up ASP.NET Core with IIS on Windows Server 2025 ASP.NET Core is a cross-platform, high-performance web framework from Microsoft, and Windows Server 2025 with IIS 10.0 is a first-class hosting environment for it. Unlike classic ASP.NET which runs directly inside IIS worker processes, ASP.NET Core applications run as standalone processes that IIS […]
How to Configure Kerberos Constrained Delegation on Windows Server 2025 Kerberos delegation allows a service to impersonate a user when accessing another backend service on that user’s behalf. This capability is fundamental to multi-tier application architectures — for example, a web front-end that must authenticate to a SQL Server or file share using the identity […]
Laravel 11 is the latest major version of the popular PHP framework, introducing a streamlined skeleton, the new Reverb WebSocket server, and improved Eloquent features. This guide deploys a Laravel 11 application with Nginx and PHP 8.3 on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Nginx, PHP […]
🟠 High ⏱ 5–30 min Last verified: 28 November 2024 Affected versions: Windows Server 2025 📖 ~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 […]
How to Configure DHCP Failover on Windows Server 2025 DHCP Failover is a high-availability feature introduced in Windows Server 2012 and significantly matured in Windows Server 2025. It allows two DHCP servers to share responsibility for a single scope, eliminating the single point of failure that a standalone DHCP server represents. If one server becomes […]
🟠 High ⏱ 5–30 min Last verified: 26 November 2024 Affected versions: Ubuntu 24.04 LTS 📖 ~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 […]
🟡 Medium ⏱ 5–30 min Last verified: 26 November 2024 📖 ~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 […]
How to Set Up System State Backup and Bare Metal Recovery on Windows Server 2025 Protecting your Windows Server 2025 infrastructure goes far beyond copying files. System state backup captures the critical components that define your server’s identity — Active Directory databases, SYSVOL, the registry, COM+ class registration databases, certificate services data, and boot files. […]
