karanth.ovh — Master Enterprise Infrastructure Field Manual
~/field-manual rev. 2026
AD Lab: Replicating DNS: 0 Stale NTP: Synced (<3ms)
🟢 LIVE HOMELAB STATUS: ALL SYSTEMS NOMINAL

The Enterprise IT Field Manual.

Tested in a live Windows Server 2025 & Proxmox lab first. Comprehensive, deep-dive technical documentation on Active Directory, PowerShell, Storage, Proxmox, Terraform, and AI Tooling.

AD Repl DNS Health ZFS Pools Terraform Claude Code
PS C:\> Test-ADReplicationTopology -Target “DC01”
[OK] KCC Replication Partner Topology: 4/4 DCs Synced [OK] Kerberos Ticket Service: 0 Clock Skew Detected
PS C:\> Get-ADDomainController -Filter * | Select HostName
[INFO] DC01.corp.local (PDC Emulator) — Online
§01 The 7 Core Topic Pillars
Comprehensive index covering all 126 published field notes
01 · IDENTITY & AUTH 20+ POSTS

Active Directory Core

13-Part Master Series, Kerberos clock skew, ADCS Certificate Authorities, Sites & Services, LDAP/LDAPS signing, and gMSA policies.

Kerberos ADCS Sites & Services gMSA
Open AD Index →
02 · WINDOWS SERVER 18+ POSTS

Group Policy & Hardening

GPO Central Store ADMX, GPResult diagnostics, Windows LAPS, BitLocker encryption, Windows Firewall, and WSUS computer groups.

GPO LAPS BitLocker WSUS
Open GPO Index →
03 · ON-CALL RESPONSE 25+ POSTS

Incident Troubleshooting

Fixes filed by exact Event ID and status code: Event 4012 (DFSR), STATUS_ACCESS_DENIED, Event 4625, Event 1988, and USN Rollback.

Event 4012 Event 4625 Event 1988 0xC0000022
Search Error Index →
04 · ENTERPRISE STORAGE 12+ POSTS

SMB, DFS & File Services

SMB 3.1.1 Share vs NTFS permissions, DFS Namespaces, Access-Based Enumeration (ABE), Storage Spaces, and VSS System State backup.

SMB 3.1.1 DFS-N DFSR VSS
Open Storage Index →
05 · VIRTUALIZATION 18+ POSTS

Proxmox & Homelab

Proxmox VE cluster setup, ZFS storage pools, Proxmox Backup Server (PBS), Hyper-V isolation, Failover Clustering, and pfSense firewalls.

Proxmox VE ZFS PBS Hyper-V
Open Homelab Index →
06 · CLI AUTOMATION 15+ POSTS

PowerShell Scripting

Building PowerShell modules, advanced functions, splatting, pipeline object passing, WinRM remoting, and automated Task Scheduler runs.

Modules Splatting WinRM Task Scheduler
Open PowerShell Index →
07 · DEVOPS & IAC 28+ POSTS

Terraform & AI Tooling

13-Part Terraform Master Series (HCL, State, Locking, Modules), 9-Part Claude Code AI Series, and 9-Part Codex CLI Automation Series.

Terraform (13P) Claude Code (9P) Codex CLI (9P)
Open DevOps Index →
§03 About the Author & Field Manual
Enterprise Infrastructure Engineer & Homelab Architect
SK
SysAdmin 10+ Yrs WS2025 / PVE 8

K Shankar R Karanth

Enterprise Infrastructure Engineer & Technical Author

Architecting resilient Windows Server environments, Active Directory topologies, high-availability Proxmox clusters, and automated DevOps workflows. Every guide on karanth.ovh is battle-tested in a live production-grade homelab to provide zero-fluff, actionable technical resolutions.

126+ Field Notes
7 Core Pillars
100% Lab Tested