https://store-images.s-microsoft.com/image/apps.42763.4503538b-5b76-453c-b4f6-70bab4b7bcbe.180fcf27-85c2-45ef-a425-8878738a8522.38819c1a-91fb-4760-8d9b-33720df6d041

Ubuntu 26.04 Preview - Level 1 Hardened Server (Development Branch)

by Madarson It, LLC

Ubuntu 26.04 Resolute Raccoon server (development preview) with Level 1 security hardening for cloud workloads and infrastructure.

Ubuntu 26.04 Preview - Level 1 Hardened Server

⚠️ Development Preview: Ubuntu 26.04 "Resolute Raccoon" development branch. NOT final LTS - for testing and early adoption only. Official LTS release April 2026.

Azure server with upcoming Ubuntu 26.04 featuring foundational Level 1 security hardening for cloud infrastructure, application hosting, and DevOps workflows.

Key Features:

  • Level 1 Hardening: Foundational security controls minimizing risk with minimal service interruption
  • Azure Optimized: Performance-tuned with Azure VM Agent
  • Compliance Ready: ISO 27001, NIST CSF, SOC 2 configurations
  • Latest Kernel: Linux 6.17+ with newest features
  • Container Ready: Optimized for Docker, Kubernetes
  • Minimal Footprint: Server-only, no GUI

Security Controls:

  • Filesystem hardening with secure mount options
  • Restrictive user access and authentication
  • Disabled unnecessary services
  • Enhanced logging (auditd)
  • Firewall default-deny (UFW)
  • Automated security updates
  • Password complexity enforcement
  • SSH hardening with key-based auth
  • Network parameter hardening

Use Cases:

  • Web servers, API endpoints
  • Container hosts (Docker/Kubernetes)
  • Database servers
  • CI/CD infrastructure
  • Microservices architectures

Important:

  • Pre-release - may contain bugs
  • Testing environments only until LTS
  • Upgrades to stable 26.04 LTS April 2026
  • Community support only until LTS

Level 1 vs Level 2:

Level 1: Foundational security, minimal impact, general infrastructure, moderate compliance.

Level 2: Maximum security for sensitive data, stringent compliance (FedRAMP High, PCI DSS, HIPAA), requires thorough testing.

Why Madarson IT?

Security-hardened Linux images with vulnerability scanning and security testing. Early access to upcoming releases with rigorous security standards.

Contact: info@madarsonit.com for custom configurations, assessments, or compliance consulting.

Disclaimer: Ubuntu is a trademark of Canonical Ltd. Development preview - not affiliated with Canonical. No Ubuntu Advantage/Pro included.

At a glance

https://store-images.s-microsoft.com/image/apps.43690.4503538b-5b76-453c-b4f6-70bab4b7bcbe.ad41300d-072b-4294-b796-cc76ed3773f9.4c0423a4-b892-4fc3-b76c-b6625a252b6b
/staticstorage/20251203.1/assets/videoOverlay_62a424ca921ff733.png
https://store-images.s-microsoft.com/image/apps.43690.4503538b-5b76-453c-b4f6-70bab4b7bcbe.ad41300d-072b-4294-b796-cc76ed3773f9.4c0423a4-b892-4fc3-b76c-b6625a252b6b
https://store-images.s-microsoft.com/image/apps.43680.4503538b-5b76-453c-b4f6-70bab4b7bcbe.ad41300d-072b-4294-b796-cc76ed3773f9.0100240d-dcdb-4944-9538-96b5fea6693c
https://store-images.s-microsoft.com/image/apps.64261.4503538b-5b76-453c-b4f6-70bab4b7bcbe.ad41300d-072b-4294-b796-cc76ed3773f9.ab841797-7c5f-4202-aa42-4cc47c1e8bb9
https://store-images.s-microsoft.com/image/apps.41154.4503538b-5b76-453c-b4f6-70bab4b7bcbe.ad41300d-072b-4294-b796-cc76ed3773f9.d34d58be-e03a-4ba7-b451-5e1f53199167