Ubuntu Server is the server edition of the Ubuntu Linux operating system, published by Canonical, used for enterprise servers, cloud, data centers, and edge deployments. It is released on a regular six-month cadence with Long Term Support (LTS) versions every two years that receive years of security maintenance. Optional Ubuntu Pro subscriptions add expanded security maintenance, kernel live patching, compliance hardening (FIPS, CIS, DISA-STIG), and enterprise support on top of the free base OS.
What it's for
Features 18
- Active Directory and LDAP integration
- Ceph for scalable remote storage
- CIS and DISA-STIG hardening profiles via Ubuntu Security Guide (USG)
- Expanded Security Maintenance (ESM) extending coverage up to 10 years via Ubuntu Pro
- FIPS 140-2 and 140-3 certified cryptographic modules
- Full disk encryption
- Kernel Livepatch for 24/7 patching with no downtime
- Landscape for enterprise-scale Linux fleet management
- Legacy add-on extending total security coverage to 15 years
- Long Term Support (LTS) releases every two years with 5 years of standard security maintenance
- MAAS (Metal-as-a-Service) for bare metal provisioning
- Multi-cloud optimized kernels for AWS, Azure, Google Cloud, Oracle, IBM
- OpenStack private cloud support
- Optional 24/7 enterprise break-fix and bug-fix support
- Rocks and Chiseled Rocks minimal container images
- Six-month interim release cadence with 9 months of updates
- Snap package support alongside deb packages
- Support for Kubernetes distributions (Charmed Kubernetes, MicroK8s, kubeadm) and public cloud K8s
At a glance
Integrations
Complianceself-reported
Pricing
Ubuntu itself is free to download; Ubuntu Pro adds paid security, compliance and support tiers priced per machine per year. Public cloud Ubuntu Pro is metered hourly through the cloud provider's bill, typically 3–4.5% of list compute price. Enterprise support, managed services, Landscape, and Ceph capacity are quoted per physical server/year or on request.
Free for personal use on up to five machines.
For up to 5 machines
Does not include knowledge base access, Certified Windows drivers for KVM guests and Ubuntu Assurance Program
Up to 50 machines for active Ubuntu community members
Unlimited VMs per machine
Server with unlimited VMs
Server with unlimited VMs
Available on AWS, Azure and GCP; exact rates on each cloud provider's pricing page
Weekday-only support is 50% of the price of 24/7 support [raw type: other]
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