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BenjaminChukwu05/README.md

Hi, I'm Benjamin Chukwu

Early-career IT Support and Systems Administration practitioner based in Lagos, Nigeria. I work hands-on with Windows and Linux systems, PC hardware, local networks, recovery, virtualization, and user support. I am CompTIA Security+ certified and currently preparing for CompTIA A+ Core 1.

My longer-term direction is IT Support → Systems Administration → Infrastructure / DevOps, with an increasing focus on systems automation.

Current focus

  • Troubleshooting Windows and Linux systems in real user environments
  • Windows Server and Active Directory practice in personal labs
  • Networking fundamentals, diagnostics, DNS/DHCP, LAN/Wi-Fi, and packet analysis
  • KVM/QEMU and libvirt virtualization
  • AWS infrastructure through practical deployments
  • Bash and PowerShell fundamentals for repeatable administration
  • Documentation, validation, and recovery-first troubleshooting

Selected work and labs

AWS PrestaShop deployment

Deployed PrestaShop using an Ubuntu EC2 web/application server and a separate Amazon RDS MySQL database. Configured security-group-restricted EC2-to-RDS connectivity, Apache/PHP, SSH access, and database permissions. During installation, diagnosed an out-of-memory failure that caused Apache workers to be killed and resolved it with persistent swap before verifying the deployment.

Virtualized Windows & Linux infrastructure lab

Built a multi-node lab with KVM/QEMU and libvirt using Windows Server, Windows 11, and Linux guests. Practised Active Directory, users/groups, Group Policy, virtual networking, service troubleshooting, and permissions.

Used a bridged Kali Linux VM to discover hosts on a home network, troubleshoot subnet and reachability issues, enumerate services, and document the reasoning behind each step.

Built a validation-first toolkit for maintaining structured Anki study material, including Python validators, synthetic fixtures, tests, and migration documentation. The project reflects the same approach I try to use in systems work: audit first, preserve data, make controlled changes, and verify the outcome.

Experience

Alongside labs, I provide freelance IT support for individuals and small clients, including hardware/software troubleshooting, OS installation and recovery, file migration, backups, peripherals, and basic network issues.

I also support live AV and technical operations at RCCG GSP, where I work with presentation, broadcast, display, cabling, and network-connected systems under live-service conditions.

How I work

I prefer a simple troubleshooting loop:

understand the problem → collect evidence → isolate the cause → make the smallest sensible change → verify → document

GitHub is both a portfolio and a learning log. Some repositories are polished projects; others document experiments, mistakes, troubleshooting, and what I learned from them.

Certifications & learning

  • CompTIA Security+ (SY0-701) — April 2025
  • CompTIA A+ Core 1 — currently preparing
  • TryHackMe Pre-Security
  • GOMYCODE Introduction to Cyber Security / Security+ 701 Training
  • Mastercard Cybersecurity Job Simulation (Forage)

Connect

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  1. study_engine_anki_toolkit study_engine_anki_toolkit Public

    Python

  2. Network_Discovery_Using_Nmap Network_Discovery_Using_Nmap Public

    A practical network reconnaissance project using Nmap to discover live hosts, identify open ports, and analyze device fingerprints on a home LAN. Demonstrates host discovery techniques, scan optimi…

  3. fedora-iloader-tls-fix fedora-iloader-tls-fix Public

    Fedora troubleshooting case study and application-scoped TLS trust fix for iLoader

    Shell