Start Here
ITtelligence has more than a hundred posts going back to 2008. If you are new here, these are the ones I would read first. Each solves a real problem I ran into, and most come with the full source on GitHub.
Active Directory Security
- Active Directory Locked Account Investigation Process: a repeatable process for finding what keeps locking an account, from audit settings to the device that holds the stale password.
- Active Directory – Simple Tier Isolation: a three-tier logon model built from WMI filters, security groups and Group Policy, without a big-bang project.
- How to Create an Intelligent Password Policy for Active Directory: audit real password hashes against weak-password lists and give weak passwords a shorter life.
- How to manage local account passwords from Active Directory without LAPS: central local account passwords using tools you already have.
Automation and Tooling
- Windows Firewall as Code: firewall rules defined once in PowerShell and applied by condition, instead of one GPO per exception.
- How to Implement Active Directory Shadow Groups: keep group membership in sync with OU contents automatically.
- ADTD – Active Directory Topology Diagrammer: export forest topology as GraphML and explore it as an interactive diagram.
- Self-Service Password Reset (SSPR) – ASP.NET Core 8: a free, open-source password reset portal for Active Directory.
AI and Development
- How to Set Up Claude Code Properly: CLAUDE.md, commands, skills and subagents, set up so the AI works the way you do.
- Model Context Protocol – Connecting AI to the World: remote and embedded MCP servers, compared on one working C# application.
More
- Free Tools: every utility on the blog, most with source code.
- Moving ITtelligence from WordPress.com to EmDash: how this site itself was rebuilt.
- Testimonials: what people said after their problem was solved.