ATM Linux
ATM Linux (Advanced Transaction Management Linux) is a **highly hardened, minimal server distribution** based on **Alpine Linux** designed exclusively for **financial transaction and point-of-sale (POS) systems**.
Base and Philosophy
[edit | edit source]- Base Distribution: Based on **Alpine Linux**, chosen for its extremely small footprint, security focus (musl libc), and transactional filesystem capabilities, which are ideal for dedicated appliance-like systems.
- Goal: To provide an ultra-secure, tamper-proof operating system core for devices that handle sensitive financial data, such as Automated Teller Machines (ATMs) and retail POS terminals.
Core Features
[edit | edit source]- Security Hardening: The system is stripped of all unnecessary services and features, uses mandatory access control, and is frequently deployed with an **immutable root filesystem** to prevent tampering and malicious code injection.
- Financial Protocol Support: Includes libraries and support for common financial protocols (e.g., ISO 8583) and hardware interfaces for card readers, printers, and secure pin-pads.
- Minimal GUI/Headless: Typically runs entirely headless or with an extremely minimal graphical shell that is locked down to only run the single transaction application, ensuring minimal attack surface.
- Target User: Financial institutions, retail technology providers, and developers building secure, dedicated embedded systems for handling money and sensitive customer information.