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About

Systems and network administrator specialized in cross-platform automation (Ansible/PowerShell/Bash), virtualization & containerization (Proxmox/Docker), and Active Directory. RNCP Level 6 certified by OpenClassrooms, skills acquired through 12 technical projects covering enterprise networks, monitoring, backups/DRP, and offensive security. Production homelab for continuous R&D.

The Beginnings​

It all started as a simple hobby with the first Minecraft servers in 2013: custom game launcher, configuration file management, first scripts in Bash then Python around 2015.

In 2017, I created my first homelab with a Raspberry Pi that I used for various projects:

  • Bluetooth, AirPlay, UPnP audio server
  • Retro video game console
  • WOL relay (to wake up my PC from outside my local network)
  • VPN server
  • DNS server / PiHole

Discovering Self-Hosting​

Initially, I was motivated by the desire to test and experiment: see if I could access my files or services remotely. Then came the practical aspect and the desire to keep my data on my own machines.

It was around 2020 that I discovered Docker. My first server was very simple: a few docker run commands with Nginx Proxy Manager and admin access via WireGuard.

Later, I deepened my knowledge:

  • Transition to Docker Compose files
  • Network concepts: subnets, VLANs, ACLs
  • Transition from bare metal to virtualization

This led me to my current architecture: an Ubuntu server deployed on Proxmox, automated via Ansible and Docker Compose files.

Professional Reconversion​

Before IT, I followed a path in Literature: bachelor's degree at the University of Caen, then contract French teacher in National Education for sophomore, junior STMG, and BTS classes.

In parallel, I worked as a civic service coordinator in health prevention at LMDE, and BAFA animator for several years.

After a period of travel and seasonal work, I decided to turn what had been a passionate hobby into my profession: making systems and network administration my career. In November 2024, I joined the Systems, Networks and Security Administrator training at OpenClassrooms.

OpenClassrooms Training​

This training, sanctioned by an RNCP Level 6 certification (equivalent to Bachelor's degree), allowed me to formalize and deepen my skills through 12 technical projects covering the entire SysAdmin/DevOps spectrum:

  • ITSM Management: GLPI ticketing, ITIL methodology
  • Network Architecture: multi-VLAN LAN design, firewalls, addressing plans
  • Containerization: deployment of n-tier architectures with Docker
  • Security: Apache hardening, Fail2ban, SSL certificates, encrypted FTP
  • Windows Infrastructure: site-to-site VPN, Active Directory, RODC, GPO
  • Cisco Networking: VLAN, ACL, EtherChannel, NAT/PAT, IPv6
  • Monitoring: Nagios, custom probes, syslog centralization
  • Automation: cross-platform Ansible, GLPI integration
  • Backups: Bash rsync scripts (FULL/INC/DIFF), DRP
  • Compliance: application of ANSSI guidelines for healthcare IS
  • Offensive Security: Active Directory audit, pentesting (nmap, Mimikatz, Kerberoasting)
  • Cloud: AWS migration, technical architecture, cost estimation

I obtained my certification ahead of schedule on November 6, 2025, after less than a year of training.

Details of each project are available in the OpenClassrooms Projects section.

Towards Infrastructure as Code and DevOps​

The Infrastructure as Code aspect immediately appealed to me and led me to explore:

  • The DevOps philosophy
  • Terraform and its open-source counterpart OpenTofu
  • Git and CI/CD pipelines
  • Kubernetes
  • Distributed storage and high availability

My current goal: a Proxmox cluster with three machines (two production machines and a witness for quorum), after considering using all these tools on a single machine for cost reasons.

This architecture is currently being implemented on my Homelab repository. The old architecture remains deployed in parallel to ensure a smooth migration.