Best Military and Defense Software for Linux of 2026

1TEN is a dedicated compliance platform for CMMC Level 2, specifically designed for small to medium-sized contractors within the Defense Industrial Base. In contrast to its cloud-dependent competitors, 1TEN operates solely on-premises with an air-gapped system that guarantees Controlled Unclassified Information remains securely within your facility. This platform comprehensively addresses all 110 requirements outlined in NIST SP 800-171 across 14 domains through its 23 integrated modules, which include an Assessment Wizard, Evidence Manager, POA&M Tracker, SSP Builder, Policy Generator, Asset Inventory, and Incident Response tools. It not only tracks your live SPRS score as you document your controls but also automatically generates C3PAO-ready System Security Plans based on your actual configuration data and produces all 14 essential domain policies derived from your responses, saving weeks of manual documentation efforts. Additionally, this efficiency allows contractors to focus more on their core operations while ensuring compliance with stringent regulations.