About Me
IT professional with a passion for solving complex problems and sharing knowledge.
Leonard Dunn
IT Manager, IT Professional & Systems Engineer
With years of hands-on experience across enterprise environments, I've built a career around making technology work reliably, securely, and efficiently. From troubleshooting critical infrastructure to automating repetitive tasks, I bring a practical, no-nonsense approach to IT.
My background spans systems administration, network engineering, and IT security. I've worked across Windows and Linux environments, managing everything from Active Directory and Group Policy to cloud infrastructure and endpoint security.
I created this site to share the scripts, tools, and knowledge I've accumulated over the years. Too much good IT knowledge lives in private notes and internal wikis — I believe in making it accessible to the broader community.
When I'm not deep in a terminal or troubleshooting a production issue, I'm writing documentation, building automation tools, or helping others level up their IT skills.
Core Competencies
Systems Administration
- Windows Server (2012–2022)
- Active Directory & Group Policy
- Linux (RHEL, Ubuntu, Debian)
- Virtualization (VMware, Hyper-V)
Networking
- TCP/IP, DNS, DHCP, VLANs
- Cisco & Fortinet Firewalls
- VPN & Remote Access
- Network Monitoring & Diagnostics
Automation & Scripting
- PowerShell
- Bash / Shell Scripting
- Python
- Task Scheduling & CI/CD
Security
- Endpoint Protection & EDR
- Security Auditing & Hardening
- Patch Management
- Incident Response
What Drives Me
Security First
Every system I touch is evaluated through a security lens. Good IT means safe IT.
Automate the Mundane
If a task runs more than twice, it should be scripted. Time is better spent on problems that need human judgment.
Share Knowledge
The IT community thrives when professionals share what they know. This site is my contribution.
Practical Solutions
I favor solutions that work reliably in the real world over theoretical perfection.
Let's Connect
Have a question, a project, or just want to talk IT? I'm always happy to connect with fellow professionals.