CloudLinux Announces Rebootless Kernel Update Service

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CloudLinux delivers a new service that allows to update Linux kernel without server reboot.

Rebootless kernel updates can save a significant amount of system administrator’s time, decrease downtime and improve server security.

Leading shared hosting operating system (OS) developer CloudLinux ( announced today the release of KernelCare, a service that allows Linux kernel updates without a reboot.

“We’re excited to present KernelCare to the Linux community,” said Igor Seletskiy, founder and CEO of CloudLinux. “Rebootless kernel updates can save a significant amount of system administrator’s time, decrease downtime and improve server security.”

Today, system administrators have to reboot a server to apply the latest kernel updates. These updates are necessary to prevent security issues. Due to downtime associated with reboots, however, such updates are often delayed, pushed into the darkest hours of the night. It is common for server owners to not update their systems for months or even years and to run vulnerable systems to avoid downtime. Managed service providers face the problem of having to schedule downtime and then updating and rebooting thousands of servers in a short period of time, straining resources. KernelCare solves this update and reboot issue by providing live kernel patching without the need for the reboot.

KernelCare technology can generate binary patches for very complex kernel changes, including changes in modules and data structures. This capability allows it to patch virtually any kernel level vulnerability, ensuring that server owners no longer have to think about kernel updates.

KernelCare service is available for CloudLinux, CentOS and RedHat kernels. Other platforms will be added soon. The service will be available for free until May 2014.

To learn more about KernelCare, please visit

About CloudLinux
CloudLinux was founded in 2009 to address the distinctive needs of web hosting providers. The company’s headquarters are in Princeton, N.J.; its development team, composed of employees with an appreciable proficiency in the hosting business, is based in Donetsk, Ukraine. CloudLinux is a stable, privately funded company geared toward providing an ideal operating system (OS) that makes even the most intricate and divergent hosting needs more straightforward. The company’s flagship OS is optimized to help hosting providers deliver more stable shared hosting services with account isolation and resource allocation on an OS level.

For more information about CloudLinux, visit

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Igor Seletskiy
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