Turn any Linux into a firewall.

An open source firewall appliance on Debian 13, managed entirely from a web UI. Stateful filtering, NAT, routing, VPN and high availability, all native in the core. The capabilities of pfSense, OPNsense or FortiGate, free, on any hardware Linux runs on.

Install guide View on GitHub

AGPL-3.0, no subscription
Native on Debian 13
No CLI required

Install on a fresh Debian 13:

curl -fsSL https://apt.muros.org/install.sh | sudo bash

Free and open source

AGPL-3.0. No edition, no paywall, no subscription.

Runs on your hardware

Built on Debian Linux: mini-PCs, servers, VMs and modern NICs.

One web UI

Stage, Apply, kernel push, auto-rollback. No CLI required.

Native, tested core

Every service integrated and tested together, upgraded as one.

The web UI

Every page follows the same pattern: stage in DB, click Apply, kernel push happens. Auto-rollback if the new ruleset breaks reachability.

https://muros.lan/

Dashboard Live system and traffic counters: CPU, memory, conntrack and per-interface throughput, refreshed every 3 seconds.

Feature comparison

What MurOS does compared to the incumbents, focused on the core network features most companies actually run.

Capability	FortiGate	pfSense	OPNsense	MurOS
Stateful firewall (nft)	yes	yes	yes	yes
NAT (SNAT / DNAT)	yes	yes	yes	yes
IPsec site-to-site	yes	yes	yes	yes
WireGuard	recent	yes	yes	yes
HA (VRRP active/passive)	yes	yes	yes	yes
Multi-WAN failover	yes	yes	yes	yes
DHCP + recursive DNS	yes	yes	yes	yes
IDS / IPS (Suricata)	yes	package	yes	planned
External auth (LDAP / RADIUS)	yes	yes	yes	planned

Where MurOS says planned, it means native in the core, not a third-party plugin. See what it is for and what is on the roadmap.