# RackNotes

> Practical Infrastructure Guides

## Pages

- [About](https://racknotes.pro/about/)
- [Affiliate Disclosure](https://racknotes.pro/disclosure/)
- [Contact](https://racknotes.pro/contact/)
- [Editorial Policy](https://racknotes.pro/editorial-policy/)
- [Hyper-V Guides](https://racknotes.pro/hyper-v/)
- [Privacy Policy](https://racknotes.pro/privacy-policy/)
- [Proxmox VE Guides](https://racknotes.pro/proxmox/)
- [Virtualization](https://racknotes.pro/virtualization/)
- [Windows Server Troubleshooting](https://racknotes.pro/windows-server-operations/)

## Posts

- [Windows Server DNS: Zones, Records, and Configuration Guide](https://racknotes.pro/windows-server-dns/)
- [DNS Scavenging and Aging on Windows Server](https://racknotes.pro/dns-scavenging-windows-server/)
- [Windows Server Backup and Bare Metal Recovery with wbadmin](https://racknotes.pro/windows-server-backup-recovery/)
- [Windows Server Boot Failure Recovery: WinRE, bootrec and BCDEdit](https://racknotes.pro/windows-server-boot-failure-recovery/)
- [Windows Server Network Troubleshooting: Client-Side Connectivity Triage](https://racknotes.pro/windows-server-network-troubleshooting/)
- [Windows Server Storage Troubleshooting: Disk Errors, CHKDSK, and Knowing When a Drive Is Dying](https://racknotes.pro/windows-server-storage-troubleshooting/)
- [Windows Server Service Failures & Recovery: Dependency Chains and Auto-Restart](https://racknotes.pro/windows-server-service-failures/)
- [RDP and WinRM Down: How to Recover Remote Access to Windows Server](https://racknotes.pro/rdp-winrm-down-recover-remote-access-windows-server/)
- [Windows Server Performance Troubleshooting: An Operator’s Triage Workflow](https://racknotes.pro/windows-server-performance-troubleshooting/)
- [Windows Server Event Log Troubleshooting: Event IDs, Timelines, and Operator Commands](https://racknotes.pro/windows-server-event-log-troubleshooting/)
- [DCDIAG Explained: How to Read and Interpret Domain Controller Diagnostics (Windows Server 2025)](https://racknotes.pro/dcdiag-active-directory/)
- [Active Directory Health Check: Full Checklist for Domain Controllers (Windows Server 2025)](https://racknotes.pro/active-directory-health-check/)
- [Active Directory Time Synchronization: Fix PDC Emulator, W32Time, and Kerberos Clock Skew](https://racknotes.pro/active-directory-time-synchronization/)
- [Active Directory DNS Problems: SRV Records, Zones, and Resolution Failures](https://racknotes.pro/active-directory-dns-problems/)
- [SYSVOL Replication Issues in Active Directory: DFSR Troubleshooting (Windows Server 2025)](https://racknotes.pro/sysvol-replication-issues-active-directory/)
- [Active Directory Replication Not Working: How to Diagnose and Fix (Windows Server 2025)](https://racknotes.pro/active-directory-replication-not-working/)
- [Group Policy in Active Directory: How GPO Processing Works (Windows Server 2025)](https://racknotes.pro/group-policy-active-directory/)
- [Active Directory Sites and Services Explained (Windows Server 2025)](https://racknotes.pro/active-directory-sites-and-services/)
- [FSMO Roles in Active Directory: What They Do and How to Manage Them (2026)](https://racknotes.pro/fsmo-roles-active-directory/)
- [How to Design Active Directory OUs Without Breaking GPOs (Windows Server 2025)](https://racknotes.pro/active-directory-ou-design/)
- [Active Directory Post-Install Checklist: 9 Tasks Before You Go Live (Windows Server 2025)](https://racknotes.pro/active-directory-post-install-checklist/)
- [How to Install Active Directory on Windows Server 2025 (Step-by-Step)](https://racknotes.pro/how-to-install-active-directory/)
- [Active Directory Structure Explained: Forest, Domain, and OU (2026)](https://racknotes.pro/active-directory-structure/)
- [What Is Active Directory? How AD DS Works on Windows Server 2025](https://racknotes.pro/what-is-active-directory/)
- [Proxmox vs Hyper-V: Choosing the Right Hypervisor for Your Infrastructure (2026)](https://racknotes.pro/proxmox-vs-hyper-v/)
- [Hyper-V VM No Internet? Fix Virtual Switch and Connectivity Problems](https://racknotes.pro/hyper-v-vm-network-troubleshooting/)
- [Hyper-V Checkpoint & AVHDX Troubleshooting: When Backups Leave a Mess](https://racknotes.pro/hyper-v-checkpoint-avhdx-troubleshooting/)
- [Hyper-V Cluster Troubleshooting: Live Migration, CSV & Quorum](https://racknotes.pro/hyper-v-cluster-live-migration-troubleshooting/)
- [Proxmox Shared Storage: NFS vs iSCSI vs Ceph (2026)](https://racknotes.pro/proxmox-shared-storage/)
- [Proxmox HA Explained: Quorum, Fencing and Failover (2026)](https://racknotes.pro/proxmox-ha-explained/)
- [Hyper-V VM Configuration: Generation, vCPU, Memory, and Integration Services (2026)](https://racknotes.pro/hyper-v-vm-configuration/)
- [Hyper-V VM Won’t Start: Fix Every “Failed to Start” Error (2026)](https://racknotes.pro/hyper-v-vm-wont-start/)
- [Hyper-V Failover Clustering Explained: Quorum, CSV, and Live Migration (2026)](https://racknotes.pro/hyper-v-failover-clustering/)
- [Hyper-V Backup: VSS, Checkpoints, and Restore Failures Explained (2026)](https://racknotes.pro/hyper-v-backup/)
- [Hyper-V Storage: VHDX, Fixed vs Dynamic, and Storage Spaces Explained (2026)](https://racknotes.pro/hyper-v-storage/)
- [Hyper-V Networking: Virtual Switches, VLANs, and SET Explained (2026)](https://racknotes.pro/hyper-v-networking/)
- [Hyper-V Post-Install Checklist (Windows Server 2025)](https://racknotes.pro/things-to-do-after-installing-hyper-v/)
- [How to Install Hyper-V on Windows Server 2025 (Step-by-Step Guide)](https://racknotes.pro/how-to-install-hyper-v/)
- [What Is Hyper-V? How Microsoft’s Hypervisor Actually Works](https://racknotes.pro/what-is-hyper-v/)
- [Proxmox VM Templates and Cloning: The Complete Operator’s Guide (2026)](https://racknotes.pro/proxmox-vm-templates/)
- [Proxmox VM Won’t Start: Diagnostic Workflow for Every Failure Mode](https://racknotes.pro/proxmox-vm-wont-start/)
- [Proxmox Storage Failure: ZFS Recovery Scenarios Explained](https://racknotes.pro/proxmox-zfs-recovery/)
- [Proxmox Backup Server Restore: Full Recovery Guide](https://racknotes.pro/proxmox-backup-server-restore/)
- [Proxmox Cluster Quorum Lost: 6 Causes and How to Fix It](https://racknotes.pro/proxmox-cluster-quorum/)
- [Proxmox Logs Explained: Where to Look When Something Breaks (2026)](https://racknotes.pro/proxmox-logs/)
- [Proxmox Random Crashes: How to Find the Real Cause (2026)](https://racknotes.pro/proxmox-random-crashes/)
- [Proxmox GPU Passthrough: When It’s Worth the Pain (and When to Walk Away)](https://racknotes.pro/proxmox-gpu-passthrough/)
- [Proxmox HA Cluster: When It’s Worth the Complexity (and When It Bites Back)](https://racknotes.pro/proxmox-ha-cluster/)
- [Proxmox Backup Strategy: What Actually Survives (2026 Guide)](https://racknotes.pro/proxmox-backup-strategy/)
- [Proxmox Networking: Bridges, VLANs, Bonds (2026 Guide)](https://racknotes.pro/proxmox-networking/)
- [Proxmox Storage: ZFS vs LVM-thin vs Ceph (2026 Guide)](https://racknotes.pro/proxmox-storage/)
- [How Much RAM Does Proxmox Need? Per-Host Limits and VM Sizing (2026)](https://racknotes.pro/proxmox-ram-sizing/)
- [Proxmox Update Guide: How to Update VE Safely (2026)](https://racknotes.pro/proxmox-update-guide/)
- [8 First Things to Do After Installing Proxmox VE (2026)](https://racknotes.pro/things-to-do-after-installing-proxmox/)
- [How to Install Proxmox VE 9.1: Step-by-Step Guide (2026)](https://racknotes.pro/how-to-install-proxmox/)
- [Best Mini PC for Proxmox Homelab (2026): Practical Picks](https://racknotes.pro/mini-pc-for-proxmox/)
- [Migrating from ESXi to Proxmox VE: Practical Issues and Hidden Pitfalls](https://racknotes.pro/esxi-to-proxmox-migration/)
- [What is Proxmox VE? A Practical Explanation for Sysadmins](https://racknotes.pro/what-is-proxmox-ve/)
- [Proxmox vs ESXi Free 2026: Which One Should You Choose?](https://racknotes.pro/proxmox-vs-esxi-free-2026/)