Moxa Industrial Linux: The Secure & Sustainable OS for the Industrial Edge
October 22, 2025
Moxa Industrial Linux – MIL: Moxa’s Commitment to Secure & Reliable Solutions for Decades to Come
Moxa actively participates in The Linux Civil Infrastructure Platform (CIP) and OpenChain Project and is a proud Linux Debian sponsor of the Long-Term Support (LTS) initiative. Moxa demonstrates its commitment to providing long-term stability for Debian-based systems. A keystone in this commitment is Moxa Industrial Linux (MIL), a secure, industrial-grade Debian-based operating system built for foundation’s unparalleled reliability. MIL provides decades of trusted performance with enhanced security patching and world-class 10-year OS support.
Through Moxa’s partnership with the world’s first IEC 62443-4-2 Security Level 2 certified computer, MIL enables resilience, and industry applications to have future-ready stability. MIL is built on Debian and the standard Linux kernel to help accelerate application development with integrated Moxa utilities for system, network, and I/O management.
Reliable, Secure & Developer-Friendly Industrial Linux
Reliability
- Crash-free filesystem ensures data integrity in demanding industrial environments
- A redundant, crash-free failover filesystem maintains stability during system events
- An intelligent network keep-alive with automatic failover reduces downtime
Security
- IEC 62443-4-2 Security Level 2 compliance reduces development efforts by at least 6 months
- Hardware Root-of-Trust authentication with Secure Boot safeguards against cyber threats
- 10-year OS lifecycle support minimizes costs for updates and long-term maintenance *See product selection table for certified models
Easy Development
- Debian-based foundation enables effortless migration from Ubuntu and Raspberry Pi projects
- Preloaded tools simplify system, interface, and network management tasks
- Intuitive GUI streamlines network connection failover and device setup
The Foundation of Industrial Stability
Moxa Industrial Linux (MIL) delivers a secure, reliable, and open-source Debian-based OS that integrates the Civil Infrastructure Platform (CIP) for long-term system consistency. MIL supports quick deployment without frequent disruptive upgrades, while built-in utilities simplify data management, wireless connectivity, I/O integration, and system protection.
Why Choose MIL?
- Reliable Network Connectivity: Moxa Connection Manager provides automatic failover and failback across Ethernet, Wi-Fi, and cellular networks, managed through an intuitive GUI.
- Long-Term Support: 10-year OS support includes security patches, CVE updates, and kernel stability enhancements to ensure lasting reliability.
- Cost Efficiency: MIL’s long-term lifecycle saves an estimated 250 person-days or $150,000 annually on patching and reduces development time for IEC 62443-4-2 compliance by over 6 months.
- Industrial-Grade Security: MIL is built under IEC 62443-4-1 certified development lifecycle processes, ensuring hardened security for industrial networks.
- Faster Development: Debian-based design allows smooth migration from Ubuntu or Raspberry Pi environments, supported by integrated tools for network management and recovery.
- Enterprise-Grade Services: Moxa provides dedicated expert FAE teams for integration and troubleshooting, while its PSIRT team ensures rapid and responses to cybersecurity events.
A Comparison of MIL Versions
| Features/Functions | MIL3 / MIL4* | MIL1 | |
|---|---|---|---|
| Standard | Secure | ||
| 10-year Superior Long-term Support (bug fixes and security updates) | MIL3: 2022 to 2031 MIL4: 2025 to 2035 | MIL3: 2022 to 2031 MIL4: 2025 to 2035 | 2018 to 2027 |
| Middleware for I/O Communication and Control | — | ||
| Network Connection and Management Tool | (Advanced) | (Basic) | |
| Provisioning Tool | — | — | |
| Security Diagnostic Tool | — | — | |
| Secure Boot / Disk Protection | LUKS | LUKS, Secure Boot | — |
| Dynamic Interface Control | — | ||
| Secure Updates via APT | — | — | |
| Backup and Recovery Tool | — | — | |
| Host-based Intrusion Detection | User-configurable | Predefined, User-configurable | — |
| Brute-force Protection | — | ||
| Network Security Monitoring | — | ||
| Security Event Auditing (Syslog) | (Basic) | (Advanced) | (Basic) |
| Secure Decommission Tool | — | — | |
| IEC 62443-4-2 Security Level 2 | — | UC-8200 models with MIL3 Secure are IEC 62443-4-2 Security Level 2 certified.UC-1200A/UC-2100A/UC-3200A/UC-8500 Series models with MIL4 Secure are compliant with IEC 62443-4-2 Security Level 2 requirements. | — |
* MIL4 will be available around Q1, 2026
Learn more about Moxa MIL Software Life-Cycle Policy HERE
FAQs
1.) How Can I Order a Specific MIL3 Version for My Moxa Computer?
Refer to the following table for model-specific ordering instructions. To order a different MIL version (such as MIL3 Secure), use the Computer Configuration Service (CCS) and select the corresponding model with the “(CTO)” suffix.
| Moxa Computer Series | Preinstalled MIL OS | How to Order MIL Versions | IEC 62443-4-2 Security Level 2 |
|---|---|---|---|
| UC-1200A Series | MIL3 Standard (Debian 11, kernel 5.10) | MIL3 Secure: Use CCS and select the “UC-1200A (CTO)” model | Compliance |
| UC-2200A Series | MIL3 Standard (Debian 11, kernel 5.10) | MIL3 Secure: Use CCS and select the “UC-2200A (CTO)” model | Compliance |
| UC-3400A Series | MIL3 Standard (Debian 11, kernel 5.10) | MIL3 Secure: Use CCS and select the “UC-3400A (CTO)” model | Compliance |
| UC-4400A Series | MIL3 Standard (Debian 11, kernel 5.10) | MIL3 Secure: Use CCS and select the “UC-4400A (CTO)” model | Compliance |
| UC-8200 Series | MIL1 (Debian 9, kernel 4.4) | MIL3 Standard or MIL3 Secure: Use CCS and select the “UC-8200 (CTO)” model | Certified |
| V1200 Series | MIL3 Secure (Debian 11, kernel 5.10) | N/A Only MIL3 Secure is available for this series | N/A |
| V3200 Series | OS NOT preinstalled | MIL3 Secure: Use CCS and select the “V3210 (CTO)” model | N/A |
| V3400 Series | OS NOT preinstalled | MIL3 Secure: Use CCS and select the “(CTO)” model | N/A |
| IoThinx 4530 Series | MIL3 Secure (Debian 11, kernel 5.10) | N/A Only MIL3 Standard is available for this series | N/A |
2.) Why and How Should I Migrate from Raspberry Pi OS to Moxa Industrial Linux (MIL)?
Refer to “Migrating from Raspberry Pi to Moxa Industrial Linux (MIL)” for benefits of Long-term support (LTS) and industrial-grade design as well as module descriptions, security standards, and migration FAQs.
3.) Why and How Should I Migrate from Ubuntu to Moxa Industrial Linux (MIL)?
Refer to “Migrating from Ubuntu to Moxa Industrial Linux (MIL)” for benefits of Long-term support (LTS) and industrial-grade design as well as module descriptions, security standards, and migration FAQs.
4.) What Are the Benefits of Long-Term Support (LTS) in MIL?
Refer to “Long Term Support (LTS)—Understanding the Value Via Practical Insights” for benefits of Long-term support (LTS) including life-cycle guarantees, reduced TCO, compliance, and security patches.
5.) Where Can I Find the Security Hardening Guide for MIL?
Check the chapter titled “Security Hardening Guide” in “Moxa Industrial Linux 3.x (Debian 11) Manual” for the product. The manual includes best practices for system hardening to align with industrial cybersecurity standards such as IEC 62443. For more information, you may refer to our Software & Documentation page.
For any further information, please contact the ManuAuto team via sales@manuauto.com
