Welcome!

Related Topics: Containers Expo Blog

Containers Expo Blog: Press Release

No Re-boot Kernel Updates Comes to Virtual Servers

KernelCare automatically updates Parallels Virtuozzo Containers kernel with no need to re-boot

It is now possible to apply automated security patches to virtual servers, as well as physical hosts, without having to re-boot. CloudLinux announced today that KernalCare now supports Parallels Virtuozzo Containers making it easier to maintain the highest levels of security with real-time updates and ensure uptime since no re-booting is necessary.

With KernelCare, patches are done automatically as soon as they become available, while the machine continues to run - no delay, no downtime. KernelCare checks every four hours for updates to the Parallels Virtuozzo Containers kernel and applies those as necessary to avoid vulnerabilities. KernelCare loads patches using one module for greatest efficiency with no impact on performance since updates take only nanoseconds.

For example, on June 6 a major kernel vulnerability became known (local privilege escalation vulnerability CVE-2014-3153) forcing administrators to scramble to re-boot servers outside the regular maintenance window. However, the next day, CloudLinux released a patch - ahead of most distribution vendors releasing new kernels - so that KernelCare fixed the issue without involving administrators.

KernelCare is quickly gaining popularity. Since its introduction one month ago, CloudLinux has sold more than 2,000 licenses of KernelCare to hosting providers and enterprises for use in their data centers.

The cost for KernelCare is less than one-third of another product, Ksplice, which had been offered previously and is now part of Oracle Linux Premier Support. The monthly subscription price of KernelCare ranges from $1.50 to $2.95 per server.

"By taking the pain out of applying the latest kernel security updates that come out every one to two months, KernelCare is the perfect complement to Parallels Virtuozzo Containers," said John Zanni, chief marketing officer, Parallels. "Live kernel patching without re-booting is a dream come true for administrators."

With operating system-level server virtualization, also known as containers, there is a high-level of efficiency with only one kernel so only one KernelCare license is required. The web hosting industry commonly uses Parallels Virtuozzo Containers because of its ability to securely allocate finite hardware resources among a large number of virtual servers - making maximum use of server hardware with very little overhead.

Blacknight Internet Solutions, based in Ireland, uses Parallels Virtuozzo Containers extensively in its technology infrastructure and is an early user of KernelCare. "We spend a lot of time keeping servers up to date and re-booting them several times a year, which meant service outages for customers, but happily we'll be putting all that behind us," said Paul Kelly, chief technology officer and co-founder, of Blacknight. "Installation of KernelCare for testing took just seconds and operation has been completely smooth so we'll be rolling out several hundred servers in the coming weeks."

"The combination of Parallels Virtuozzo Containers and KernelCare adds to a new level of data center efficiency and for hosting companies means less disruption to customers," said Igor Seletskiy, CEO of CloudLinux. "Leaving behind the hassles of planned downtime notifications will save countless hours."

Availability and Pricing
KernelCare is available via monthly subscription with ordering instructions at http://kernelcare.com/pricing.php. The kernel module is released under GPL2 (download at http://patches.kernelcare.com/kmod_kcare.tar.gz) while other components are distributed in binary-only format under license. KernelCare is now available for CentOS 6, Red Hat Enterprise Linux (RHEL) 6, CloudLinux OS 6 and OpenVZ (64-bit only).

In the next six weeks, CloudLinux plans to add support for RHEL 7. And, within the next 60 days, it plans support for Debian and Ubuntu, as well as CentOS 5, RHEL 5, CloudLinux OS 5.

About CloudLinux
CloudLinux, founded in 2009, is a privately-held company with headquarters in Princeton, N.J. and development based in Donetsk, Ukraine. The company has technical expertise in kernel development with customers that include 2,000 service providers worldwide. Its CloudLinux OS is used on more than 18,000 servers for increased server stability and security, which brings far greater efficiency to Web host providers. For more information, visit www.cloudlinux.com.

More Stories By Glenn Rossman

Glenn Rossman has more than 25 years communications experience working at IBM and Hewlett-Packard, along with startup StorageApps, plus agencies Hill & Knowlton and G&A Communications. His experience includes media relations, industry and financial analyst relations, executive communications, intranet and employee communications, as well as producing sales collateral. In technology, his career includes work in channel partner communications, data storage technologies, server computers, software, PC and UNIX computers, along with specific industry initiatives such as manufacturing, medical, and finance. Before his latest stint in technology, Glenn did business-to-business public relations on behalf of the DuPont Company for its specialty polymers products and with the largest steel companies in North America in an initiative focused on automakers.

Latest Stories
As enterprises work to take advantage of Big Data technologies, they frequently become distracted by product-level decisions. In most new Big Data builds this approach is completely counter-productive: it presupposes tools that may not be a fit for development teams, forces IT to take on the burden of evaluating and maintaining unfamiliar technology, and represents a major up-front expense. In his session at @BigDataExpo at @ThingsExpo, Andrew Warfield, CTO and Co-Founder of Coho Data, will dis...
With the proliferation of both SQL and NoSQL databases, organizations can now target specific fit-for-purpose database tools for their different application needs regarding scalability, ease of use, ACID support, etc. Platform as a Service offerings make this even easier now, enabling developers to roll out their own database infrastructure in minutes with minimal management overhead. However, this same amount of flexibility also comes with the challenges of picking the right tool, on the right ...
In most cases, it is convenient to have some human interaction with a web (micro-)service, no matter how small it is. A traditional approach would be to create an HTTP interface, where user requests will be dispatched and HTML/CSS pages must be served. This approach is indeed very traditional for a web site, but not really convenient for a web service, which is not intended to be good looking, 24x7 up and running and UX-optimized. Instead, talking to a web service in a chat-bot mode would be muc...
More and more companies are looking to microservices as an architectural pattern for breaking apart applications into more manageable pieces so that agile teams can deliver new features quicker and more effectively. What this pattern has done more than anything to date is spark organizational transformations, setting the foundation for future application development. In practice, however, there are a number of considerations to make that go beyond simply “build, ship, and run,” which changes ho...
Fortunately, meaningful and tangible business cases for IoT are plentiful in a broad array of industries and vertical markets. These range from simple warranty cost reduction for capital intensive assets, to minimizing downtime for vital business tools, to creating feedback loops improving product design, to improving and enhancing enterprise customer experiences. All of these business cases, which will be briefly explored in this session, hinge on cost effectively extracting relevant data from ...
SYS-CON Events announced today that iDevices®, the preeminent brand in the connected home industry, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. iDevices, the preeminent brand in the connected home industry, has a growing line of HomeKit-enabled products available at the largest retailers worldwide. Through the “Designed with iDevices” co-development program and its custom-built IoT Cloud Infrastruc...
SYS-CON Events announced today that Pythian, a global IT services company specializing in helping companies adopt disruptive technologies to optimize revenue-generating systems, has been named “Bronze Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2015 at the Javits Center in New York, New York. Founded in 1997, Pythian is a global IT services company that helps companies compete by adopting disruptive technologies such as cloud, Big Data, advanced analytics, and DevO...
With an estimated 50 billion devices connected to the Internet by 2020, several industries will begin to expand their capabilities for retaining end point data at the edge to better utilize the range of data types and sheer volume of M2M data generated by the Internet of Things. In his session at @ThingsExpo, Don DeLoach, CEO and President of Infobright, will discuss the infrastructures businesses will need to implement to handle this explosion of data by providing specific use cases for filte...
SYS-CON Events announced today that VAI, a leading ERP software provider, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. VAI (Vormittag Associates, Inc.) is a leading independent mid-market ERP software developer renowned for its flexible solutions and ability to automate critical business functions for the distribution, manufacturing, specialty retail and service sectors. An IBM Premier Business Part...
SYS-CON Events announced today that Catchpoint Systems, Inc., a provider of innovative web and infrastructure monitoring solutions, has been named “Silver Sponsor” of SYS-CON's DevOps Summit at 18th Cloud Expo New York, which will take place June 7-9, 2016, at the Javits Center in New York City, NY. Catchpoint is a leading Digital Performance Analytics company that provides unparalleled insight into customer-critical services to help consistently deliver an amazing customer experience. Designed...
SYS-CON Events announced today that Alert Logic, Inc., the leading provider of Security-as-a-Service solutions for the cloud, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Alert Logic, Inc., provides Security-as-a-Service for on-premises, cloud, and hybrid infrastructures, delivering deep security insight and continuous protection for customers at a lower cost than traditional security solutions. Ful...
SYS-CON Events announced today that Interoute, owner-operator of one of Europe's largest networks and a global cloud services platform, has been named “Bronze Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2015 at the Javits Center in New York, New York. Interoute is the owner-operator of one of Europe's largest networks and a global cloud services platform which encompasses 12 data centers, 14 virtual data centers and 31 colocation centers, with connections to 195 ad...
Advances in technology and ubiquitous connectivity have made the utilization of a dispersed workforce more common. Whether that remote team is located across the street or country, management styles/ approaches will have to be adjusted to accommodate this new dynamic. In his session at 17th Cloud Expo, Sagi Brody, Chief Technology Officer at Webair Internet Development Inc., focused on the challenges of managing remote teams, providing real-world examples that demonstrate what works and what do...
SYS-CON Events announced today that Men & Mice, the leading global provider of DNS, DHCP and IP address management overlay solutions, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. The Men & Mice Suite overlay solution is already known for its powerful application in heterogeneous operating environments, enabling enterprises to scale without fuss. Building on a solid range of diverse platform support,...
SYS-CON Events announced today that Commvault, a global leader in enterprise data protection and information management, has been named “Bronze Sponsor” of SYS-CON's 18th International Cloud Expo, which will take place on June 7–9, 2016, at the Javits Center in New York City, NY, and the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Commvault is a leading provider of data protection and information management...