Practical, read-only audits and safe-by-default cleanup utilities I’ve written for day-to-day identity operations. Click any script for details and the GitHub link.
Comprehensive read-only Active Directory health assessment. 18 diagnostic checks across forest, domain controllers, replication, DNS, services and AD hygiene — producing a styled HTML report, CSV summary, and (optionally) email delivery with a status-coded subject line.
PowerShell · Read-only · HTML + CSV + EmailRead-only DNS health check for an Active Directory forest. Verifies DCs run the DNS Server role, audits DC NIC settings, validates forwarders, walks every forward and reverse zone, and flags Microsoft DNS best-practice deviations.
PowerShell · Read-only · HTML + 5 CSVs + EmailRemoves a DNS A record and its matching PTR record together as a single, validated operation — the natural cleanup companion to Invoke-ADDnsHealthCheck. Keeps forward and reverse zones in sync; safe-by-default with -WhatIf/-Confirm.
Two-phase validation for a DC-to-Infoblox DNS migration — capture a JSON baseline of DC, SRV and PTR state pre-cutover, then validate against the new authoritative DNS server afterwards and diff the result against the baseline. Mode-aware DC health checks (dcdiag pre-cut, PowerShell-native TCP / LDAP RootDSE post-cut so a stale resolver can’t hang the run), pre-flight reachability gate, GSS-TSIG refresh test. HTML report + JSON baseline + optional email. No WinRM.
PowerShell · Baseline / Validate / Compare · HTML + JSON + emailThree-stage lifecycle for stale AD user and computer accounts — Disable → Move → Delete. Audit-only by default; every stage is opt-in and gated by an explicit -Apply switch. Built-in protection for krbtgt, adminCount=1, DC accounts and standard privileged groups.
A two-script Active Directory cleanup toolkit — CleanUp-ADUsers.ps1 for inactive user accounts and CleanUp-Workstations.ps1 for stale workstation (computer) accounts. Both follow the same inactivity-driven Report → Disable → Delete lifecycle, with optional Entra ID sign-in verification and a deep set of built-in exclusions; preview everything with -WhatIf.
PROVIDED AS IS. All scripts on this page are free, open-source utilities intended for experienced administrators. Always test in a non-production lab environment before running anywhere that matters. By downloading and running these scripts you accept full responsibility for the outcome — the author accepts no liability for any direct or indirect damage caused by use, misuse, or modification.
Copyright © 2026 ITC Technology
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Open to advisory, contract and permanent opportunities involving Active Directory, Entra ID, identity governance, or zero-trust programmes. The best way to reach me is by email.