About

The story behind FortOS.

A security-first NAS operating system

FortOS is an open-source Linux NAS operating system built on .NET 10. It runs bare-metal via a Debian 12 ISO, or inside Docker for evaluation. Every management surface — storage, sharing, protection, security, containers and observability — is exposed through a unified REST/gRPC API, a Web dashboard and a terminal CLI.

Docker containers are first-class citizens alongside native services such as SMB, NFS and rsync. The Web dashboard (Vue 3) ships with pages for overview, files, storage, shares, backups, snapshots, agents, network, services, logs, alerts and settings. Modules are hot-loadable DLLs, so the OS can grow over the air with SHA256-verified, staged updates.

Security is designed in from day one: NasToken capability tokens with delegation and device binding, fine-grained NAbility permissions, five-level data classification, TOTP two-factor authentication, account lockout and an HMAC-chained audit log you can verify with a single command.

Key capabilities

REST API on :5000 and gRPC (HTTP/2) on :5001
Web dashboard served at /dashboard
Terminal CLI with TUI dashboard (status --watch)
Debian 12 ISO with BIOS & UEFI boot and a graphical installer
SMART disk health, RAID health and Docker metrics
Capability-scoped container agents with a token broker
5-stage log pipeline, Loki storage and alert engine
OTA module updates with staging and rollback

Quick start

git clone https://github.com/GeneralLibrary/fortOS.git
cd fortOS
docker compose up -d --build