Proxmox and OPNsense Training
Your team should understand Proxmox and OPNsense and run them on its own. We train it at your site or online.
The problem
A new platform goes live and only one administrator really understands it. Colleagues hesitate to run upgrades, change firewall rules or restore a backup. When something breaks, everyone waits for that one person.
The official documentation for Proxmox and OPNsense is thorough, but it explains features one by one. It does not show how they fit together in your environment. Learning by trial and error on a production system costs time and, occasionally, data.
What inett does
inett is a Proxmox Training Partner and an OPNsense Certified Training Partner. Our Proxmox courses are official Proxmox trainings: participants receive an official certificate from Proxmox. We train administrators and IT teams with explanation and hands-on exercises, away from your production systems.
Our courses:
- Proxmox VE: installation, configuration and administration, then clustering, shared storage, live migration and high availability
- Proxmox Backup Server: datastores, backup jobs, deduplication, retention, encryption and restores
- OPNsense: installation and administration, firewall rules, VPN, intrusion detection, web filtering and high availability
These are the same Proxmox and OPNsense courses as at the inett Academy run by our sister company inett GmbH. You can also book them through us, inett SARL. We train in English, German or French, in two-day or four-day courses from 09:00 to 17:00, or individually as agreed.
We train at your site or online. We have no training rooms of our own; if you prefer, we book a seminar room near you, for example in a hotel. We agree content and depth with you. A team moving away from VMware needs a different focus from a team extending an existing cluster.
Technical details
- Courses
- Proxmox VE, Proxmox Backup Server, OPNsense
- Partner status
- Proxmox Training Partner, OPNsense Certified Training Partner
- Certificate
- official Proxmox certificate for the Proxmox courses
- Location
- at your site, online or in a booked seminar room
- Languages
- English, German, French
- Duration
- 2-day or 4-day courses, 09:00–17:00 each day, or individually as agreed
- Versions (as of October 2026)
- Proxmox VE 9.2, Proxmox Backup Server 4.2, OPNsense 26.7
- Prerequisites
- basic Linux and networking knowledge
What is included
- agreeing the content with you, based on your team’s experience
- training sessions with explanation and practical exercises
- time to discuss questions about your own environment
Who this is for
The training suits IT teams that operate or introduce Proxmox VE, Proxmox Backup Server or OPNsense. It also suits IT service providers who deploy these products for their clients.
It is not the right starting point for people with no Linux experience. A general Linux introduction comes first.
Frequently asked questions
Can we book a session for our team only?
Yes, that is how we work. We train your team at your site or online on a date we agree together, and tailor the content to your environment.
How many servers does a highly available Proxmox VE cluster need?
At least three nodes, so the cluster keeps quorum when one node fails. Two nodes plus an external QDevice as a tie-breaker also work. If Ceph runs on the same cluster, production use requires at least three nodes. See the Proxmox VE documentation.