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
Information technology (IT) advances are transforming the way we innovate in business, thereby disrupting the old guard and their predictable status-quo. It’s creating global market turbulence. Industries are converging, and new opportunities and threats are emerging, like never before. So, how are savvy chief information officers (CIOs) leading this transition? Back in 2015, the IBM Institute for Business Value conducted a market study that included the findings from over 1,800 CIO interviews ...
"Matrix is an ambitious open standard and implementation that's set up to break down the fragmentation problems that exist in IP messaging and VoIP communication," explained John Woolf, Technical Evangelist at Matrix, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Web Real-Time Communication APIs have quickly revolutionized what browsers are capable of. In addition to video and audio streams, we can now bi-directionally send arbitrary data over WebRTC's PeerConnection Data Channels. With the advent of Progressive Web Apps and new hardware APIs such as WebBluetooh and WebUSB, we can finally enable users to stitch together the Internet of Things directly from their browsers while communicating privately and securely in a decentralized way.
"We host and fully manage cloud data services, whether we store, the data, move the data, or run analytics on the data," stated Kamal Shannak, Senior Development Manager, Cloud Data Services, IBM, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
While DevOps most critically and famously fosters collaboration, communication, and integration through cultural change, culture is more of an output than an input. In order to actively drive cultural evolution, organizations must make substantial organizational and process changes, and adopt new technologies, to encourage a DevOps culture. Moderated by Andi Mann, panelists discussed how to balance these three pillars of DevOps, where to focus attention (and resources), where organizations might...
Zerto exhibited at SYS-CON's 18th International Cloud Expo®, which took place at the Javits Center in New York City, NY, in June 2016. Zerto is committed to keeping enterprise and cloud IT running 24/7 by providing innovative, simple, reliable and scalable business continuity software solutions. Through the Zerto Cloud Continuity Platform™, organizations can seamlessly move and protect virtualized workloads between public, private and hybrid clouds. The company’s flagship product, Zerto Virtual...
Some people worry that OpenStack is more flash then substance; however, for many customers this could not be farther from the truth. No other technology equalizes the playing field between vendors while giving your internal teams better access than ever to infrastructure when they need it. In his session at 20th Cloud Expo, Chris Brown, a Solutions Marketing Manager at Nutanix, will talk through some real-world OpenStack deployments and look into the ways this can benefit customers of all sizes....
SYS-CON Events announced today that delaPlex will exhibit at SYS-CON's @CloudExpo, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. delaPlex pioneered Software Development as a Service (SDaaS), which provides scalable resources to build, test, and deploy software. It’s a fast and more reliable way to develop a new product or expand your in-house team.
Extreme Computing is the ability to leverage highly performant infrastructure and software to accelerate Big Data, machine learning, HPC, and Enterprise applications. High IOPS Storage, low-latency networks, in-memory databases, GPUs and other parallel accelerators are being used to achieve faster results and help businesses make better decisions. In his session at 18th Cloud Expo, Michael O'Neill, Strategic Business Development at NVIDIA, focused on some of the unique ways extreme computing is...
The explosion of new web/cloud/IoT-based applications and the data they generate are transforming our world right before our eyes. In this rush to adopt these new technologies, organizations are often ignoring fundamental questions concerning who owns the data and failing to ask for permission to conduct invasive surveillance of their customers. Organizations that are not transparent about how their systems gather data telemetry without offering shared data ownership risk product rejection, regu...
Due of the rise of Hadoop, many enterprises are now deploying their first small clusters of 10 to 20 servers. At this small scale, the complexity of operating the cluster looks and feels like general data center servers. It is not until the clusters scale, as they inevitably do, when the pain caused by the exponential complexity becomes apparent. We've seen this problem occur time and time again. In his session at Big Data Expo, Greg Bruno, Vice President of Engineering and co-founder of StackIQ...
The security needs of IoT environments require a strong, proven approach to maintain security, trust and privacy in their ecosystem. Assurance and protection of device identity, secure data encryption and authentication are the key security challenges organizations are trying to address when integrating IoT devices. This holds true for IoT applications in a wide range of industries, for example, healthcare, consumer devices, and manufacturing. In his session at @ThingsExpo, Lancen LaChance, vic...
"Plutora provides release and testing environment capabilities to the enterprise," explained Dalibor Siroky, Director and Co-founder of Plutora, in this SYS-CON.tv interview at @DevOpsSummit, held June 9-11, 2015, at the Javits Center in New York City.
FinTech is the sum of financial and technology, and it’s one of the fastest growing tech industries. Total global investments in FinTech almost reached $50 billion last year, but there is still a great deal of confusion over what it is and what it means – especially as it applies to retirement. Building financial startups is not simple, but with the right team, technology and an innovative approach it can be an extremely interesting domain to disrupt. FinTech heralds a financial revolution that...
SYS-CON Media announced today that @WebRTCSummit Blog, the largest WebRTC resource in the world, has been launched. @WebRTCSummit Blog offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. @WebRTCSummit Blog can be bookmarked ▸ Here @WebRTCSummit conference site can be bookmarked ▸ Here