Press Releases

CloudLinux and Ksplice Launch Rebootless Linux Distribution for Hosting Providers

September 08
10:12 2010

Web Host NewsPrinceton, NJ and Cambridge, MA – Cloud Linux Inc. and Ksplice Inc. are pleased to announce the world’s first rebootless Linux distribution aimed at serving the needs of hosting service providers: CloudLinux with Ksplice Uptrack. Incorporating both CloudLinux – the leading Linux distribution for service providers that increases security, stability and control of the server environment for more efficient and profitable operations – and Ksplice Uptrack – the revolutionary “rebootless” update service – CloudLinux with Ksplice Uptrack constitutes a game-changing development for hosting service providers. The new combined offering will install CloudLinux kernel updates without the need to reboot your server.

Hundreds of the world’s cloud-computing providers, Web hosting firms and enterprise Linux installations use Ksplice Uptrack to update their kernels seamlessly, without disruption to customers. Linux distributions require a reboot about once a month to stay up to date with important kernel security updates that not only demand maintenance time from staff but also cause downtime for customers. Today’s launch brings the Ksplice instant update technology to the world’s leading Linux distribution for shared service providers: CloudLinux.

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“We see a lot of interest and demand for CloudLinux from the hosting community because it has demonstrated a unique ability to add stability to hosting platforms which delivers important reliability to customers” said Jeff Arnold, CEO of Ksplice Inc. “This focus on stability and performance is very much in tune with our vision. This is why we are delighted to be adding support for CloudLinux”

Major Linux distributions ask their users to install a kernel update roughly once each month, which requires a reboot. Until a system can be updated, it can be vulnerable to security flaws. By allowing users to install kernel updates without downtime, Uptrack slashes the cost of system administration and bolsters security. In real-world tests, Uptrack dramatically increases the actual rate of compliance with security updates.

Cloud Linux invented the Lightweight Virtual Environment™, a kernel-level technology that limits the amount of resources (CPU, I/O, memory) available to a specific process or customer. LVE isolates specific hardware resources in a lightweight environment and prevents one tenant on a shared server from affecting others – especially due to a sudden peak load from a single tenant. Some key benefits of CloudLinux are:
• Increased server density and capability without increasing risk
• Better reliability and performance from each server
• Protection from hackers and poorly written scripts that drain resources and cause downtime
• Reduced operational costs related to hardware, electricity, datacenter space and management costs
• Better utilization of exiting infrastructure
• Increase uptime since no one account can take down or slow down an entire server

“We are extremely excited to be supported by Ksplice, since it is such a revolutionary and innovative service,” said Igor Seletskiy, CEO and Founder of CloudLinux. “Web hosting companies dread server reboots, and anything that helps them avoid downtime is a great improvement. Many of our customers already use Ksplice, and having full support for CloudLinux gives our customers the ability to benefit from this innovative solution.”

CloudLinux with Ksplice Uptrack can be purchased from Cloud Linux. Ksplice Uptrack is also available for existing CloudLinux customers from the Ksplice Web site, at The monthly subscription fee is $3.95 a system for the first 20 systems, and $2.95 for each system thereafter.

About Cloud Linux Inc.

Founded in Princeton, NJ, CloudLinux is a privately funded company that combines unique expertise in the service provider business with in-depth technical knowledge of hosting, kernel development and open source. CloudLinux provides hosting companies and datacenters with the only commercially supported Linux operating system (OS) optimized for their needs. The new technology behind CloudLinux has been proven to increase density, stability and performance, helping customers realize reduced operating costs and increased profitability. To join online discussions and receive news updates you can find CloudLinux on: Twitter and LinkedIn. For more information, please visit

About Ksplice Inc.

Ksplice Inc. is an enterprise software company making reboots a thing of the past. More than 200 companies and tens of thousands of production systems use Ksplice Uptrack, the company’s first product, to make their Linux systems more secure, reliable and maintainable through seamless updates. Ksplice was founded in 2008, based on research from the Massachusetts Institute of Technology, and is based in Cambridge, Mass. For more information, please visit

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