David Petitfour

Linux Systems & Infrastructure Administrator with almost 20 years of experience in deploying, securing, and automating server environments. Specializing in open-source solutions: secure backups, private cloud, secure remote access, and critical service hosting. Skills in Linux, Docker, Ansible, Terraform, virtualization, reverse proxy, and monitoring. I assist SMEs/VSEs in modernizing and protecting their IT infrastructure. Passionate about reliable architectures, cybersecurity, and system automation.

Linux System Administration: Management, maintenance, and optimization of GNU/Linux servers (Debian, Ubuntu Server).

Automation: Automated deployment and configuration of infrastructures via Ansible, Terraform, and Packer.

Security: Strengthening Linux system security (hardening), implementing best practices, access control, log monitoring, and critical update management.

Virtualization & Monitoring: Monitoring, operation, and administration of VMware environments.

Web & Database Administration: Installation, configuration, and migration of Apache2, NGINX, MariaDB, PostgreSQL servers, as well as Docker container management.

Open Source Solutions: Deployment, customization, and administration of open-source solutions according to business needs.

Scripting: Development of scripts in Bash, Python, and HCL to automate recurring tasks and improve operational efficiency.

DevOps Approach: Integration of DevOps practices for infrastructure as code management, provisioning, CI/CD, and environment reproducibility.

Documentation: Writing clear and structured technical procedures for knowledge capitalization and team knowledge transfer.

Systems and Network Project Manager: Steering infrastructure projects, planning, coordination, and operational follow-up.

Integration of reverse proxies to secure exposed applications.