Welcome to my technical portfolio. I’m transitioning into IT support after a long career in retail operations and management. This site documents the hands-on work I’m doing with Linux, Windows Server, Active Directory, networking, self-hosted services, troubleshooting, and the Google IT Support Professional Certificate.
Current Focus
I’m currently working through the Google IT Support Professional Certificate while continuing to build hands-on experience with networking, Linux administration, Windows environments, Active Directory, troubleshooting, and self-hosted infrastructure.
Linux has been my primary desktop operating system for years, and I currently use Manjaro Linux as my daily driver.
Projects, Services & Labs
A mix of live self-hosted services and hands-on lab environments built to practice administration, troubleshooting, networking, and security.
Active Directory & AppLocker
Windows Server 2022 • QEMU/KVM • Windows 11 Enterprise
Built a Windows Server 2022 Active Directory lab with structured Organizational Units, user provisioning, domain-joined Windows 11 clients, and AppLocker application-control policies.
osTicket Support Portal
Ubuntu • Nginx • MariaDB • SSL
Deployed and maintain a live osTicket help desk on Ubuntu with Nginx, MariaDB, and TLS. After automated bots began submitting unwanted tickets, I tightened the public-facing configuration and added protections to reduce abusive submissions.
Mailcow Mail Server
Docker • Postfix • Dovecot • DNS Authentication
Deployed and maintain a Docker-based Mailcow mail server with SPF, DKIM, DMARC, and reverse DNS configured for authentication and deliverability. I also monitor DMARC reports and tightened the domain policy after verifying legitimate senders.
Technical Core
Systems & Operating Systems
- Manjaro Linux Daily Administration
- Ubuntu Server Administration
- Windows Server 2022 & Active Directory
- Windows 11 Enterprise
- QEMU/KVM Virtualization
Networking & Security
- TCP/IP, IPv4 & Subnetting
- DNS, DHCP & NAT Fundamentals
- SPF, DKIM, DMARC & PTR
- Nginx Reverse Proxy & TLS
- SSH Keys & Linux Firewall Basics
Support & Infrastructure
- Technical Troubleshooting
- osTicket Administration
- PowerShell & Bash
- Docker Containerization
- Git / GitHub Version Control
Troubleshooting Journal
Notes from projects, labs, upgrades, failures, and the process of figuring out what went wrong.
Ubuntu 24.04 LTS Migration & Service Recovery
Documented the backup, upgrade, troubleshooting, and recovery process while migrating a self-managed Ubuntu server and restoring dependent services.
Windows Server 2022 & Windows 11 Domain Integration
Built and documented an Active Directory environment with domain joining, Organizational Units, user and group management, and application-control policies.
DMARC Monitoring & Email Authentication
Documented SPF, DKIM, DMARC, reverse DNS, aggregate reporting, and policy enforcement while hardening a self-hosted mail environment.
My background in retail operations has given me years of experience helping people, solving problems, and keeping day-to-day operations moving. I’m now combining that experience with hands-on technical work as I transition into IT support.
This portfolio is where I document that process — including the systems I build, the problems I run into, what I tried, and what I learned along the way.