Security
Firewall
Managed firewalling from Noiz — software or dedicated hardware (OPNsense), sold independently or under a managed SLA.
A firewall is the perimeter — the rule set that decides what reaches the client’s systems. Noiz runs it as software, as dedicated hardware, or both; on its own or as part of a managed plan.
Software or hardware
- Software firewalling — host and network rules on the client’s Linux servers and VPS: default-deny, least-privilege, maintained by Noiz.
- Hardware firewall — dedicated OPNsense appliances at the perimeter, configured, hardened and monitored. Open-source firmware on real hardware, fully owned by the client.
How it’s bought
- Independently — a managed firewall service for a single site or a whole estate.
- Under a managed SLA — folded into Server or managed support, with the rule set reviewed as the client’s services change.
What’s included
- Default-deny policy design and ongoing maintenance
- OPNsense hardware option for the network edge
- Change management and monitoring
- Pairs with VPN and Edge Security
Why Noiz
Open-source (OPNsense), Linux-native, hardened by default — and the client keeps the configuration and the hardware.
Frequently asked
Software firewall or hardware firewall?
Both. Noiz runs host- and network-level firewalling on the client’s Linux servers and VPS, and supplies dedicated OPNsense hardware appliances for the perimeter where a physical device is the right call. The two are often used together.
Can I buy the firewall on its own?
Yes — as a standalone managed firewall service for a site or estate, or folded into a Server / managed-support SLA where it is reviewed as services change.
What does "default-deny" mean?
The firewall blocks everything by default and only opens the specific ports and routes the client actually needs. It is the safest baseline and the one Noiz applies as standard.