Kernel live patching enables runtime correction of critical security issues in running kernel without rebooting. Ubuntu Linux version 16.04 LTS supports live patching for both enterprise and the Ubuntu community members. The Canonical Livepatch Service is an authenticated, encrypted, signed stream of livepatch kernel modules for Ubuntu servers, virtual machines and desktops. Please note that this service is free up to 3 servers running 64-bit Intel/AMD Ubuntu 16.04 LTS. How do I enable or patch my Ubuntu Linux 16.04 LTS server without rebooting the box?