I am Guillaume, a network and systems engineer passionate about open source, self-hosted, and sovereign infrastructures.
I design and maintain reliable, high-performance, and secure environments where users retain full control over their data and systems — without relying on opaque cloud platforms.
🧠 Areas of Expertise
- Networking & Security: Primarily open-source oriented (pfSense, Unifi), VLANs, VPN (IPsec, OpenVPN, WireGuard), ACLs, IDS/IPS
- Systems Administration: Linux and Windows Server: Active Directory, Exchange, Application Servers
- Virtualization: Proxmox VE, Hyper-V, HA, Ceph, ZFS
- Monitoring & QoS: Zabbix, Grafana, SD-WAN, Traffic Shaping
- IP principles and network protocols (TCP/IP, BGP, OSPF, MPLS)
I advocate for an approach based on digital sovereignty, transparency, and sustainability through the use of open-source tools and on-premise solutions.
Autonomy first, security above all.