Firewall & network protection
OPNsense appliances we build ourselves, segmented networks and controlled traffic.
Information Security
Security that fits your network
Firewalls we build ourselves, clear standards and a team that looks after your infrastructure as though it were our own. NIS2, BSI Grundschutz and the GDPR are our yardstick — not the exception.
Firewalls made by ITN
Our own appliances instead of a black box
We build our firewalls ourselves: hardware we assemble, running the open-source system OPNsense, configured specifically for your network. No licence lock-in, full transparency, support from Germany.
NIS2 compliantBSI GrundschutzGDPROPNsense
Please note: we build the appliances ourselves and are not an OPNsense/Deciso partner — we do not resell their hardware.
Configured individually
Every appliance matched to your network structure and your requirements.
Open source, no lock-in
Full control without becoming dependent on a single vendor.
Standards as the yardstick
NIS2, BSI Grundschutz and the GDPR set the boundaries of how we work.
Support as equals
We look after things continuously — as part of your team, not as a distant supplier.
Building blocks
Protected all round
From the perimeter to the inbox — security whose parts fit together.
Backup & restore
Verified, encrypted backups with Proxmox Backup Server — tested, not merely hoped for.
Email security
Spam and virus filtering with the Proxmox Mail Gateway, before mail reaches your inbox.
Advice & awareness
We put requirements such as NIS2 into context and turn your team into the strongest link in the chain.
Recovery Lab
Prevention alone is not cyber resilience
A firewall, segmentation and mail filtering lower the odds of an incident. What they do not answer is the second question: can your systems actually be restored after a security incident? In the ITN Recovery Lab we restore agreed systems from your backups on separate infrastructure and start them — you then test the recovery yourself.