Category: Security

Enabling live kernel patching on Ubuntu Server 16.04 LTS

A couple of years ago, a set of changes was merged into the kernel core (version 4.0) that enabled kernel patching without a reboot. Although a similar functionality has been available for a while in commercial Linux distributions as a paid service (Oracle Ksplice, RHEL Live Patching and SUSE Live Patching), it’s now possible to configure it for up to 3 machines with Ubuntu for free. Live kernel patching in Ubuntu is known as Canonical Livepatch Service.

Let’s check how it works.

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