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Analyze performance impact of Spectre and Meltdown patches

15 February 2018
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Reading Time: 6 minutesThe mitigations for Meltdown and Spectre issues have involved a combination of different type of fixes: some software based, such as Microsoft and Linux versions of the “kernel page table isolation” protection, but also fome hardware based, like the Intel’s microcode updates (part that is still missing in most cases). Both type of patches can cause performance overheads and have some kind of impact on your environment. But how can you estimate it (before apply the patches) and how can you measure it (when the patches have been applied)?

vSecurity ,

Meltdown and Spectre: far from the solution?

12 February 2018
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Reading Time: 8 minutesIn June 2017, a team constituted of independent researchers, university research labs, and some of Google’s Project Zero members and cyberus technology discovered two security vulnerabilities enabled by the widespread use of speculative execution in most of the CPU. The problem was also independently discovered by other researchers, at about the same time. These vulnerabilities, called Meltdown and Spectre, were made public in January 2018. Meltdown and Spectre are critical vulnerabilities existing in several modern CPU: these hardware bugs allow programs to steal data which is currently processed on the computer. Meltdown and Spectre can affect personal […]

vSecurity

Using Linux Kernel 4.15 to minimize Meltdown and Spectre

9 February 2018
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Reading Time: 5 minutesLinux Kernel 4.15 has been released on 28 Jan 2018 and, thanks to the entire Linux Kernel development team, this release contains the latest code to deal with Meltdown and Spectre issues and minize the related risks. The Kernel is the core code in the operating system managing low level tasks. In the update both vulnerabilities are explicitly addressed.And the interesting aspect is that the performance are not so bad! There are infact three instinct vulnerabilities identified, one Meltdown and two variations of Spectre (known as v1 and v2). Kernel 4.15 actually address only Meltdown and […]

vSecurity ,

Per VM license in Veeam products

6 February 2018
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Reading Time: 4 minutesVeeam licenses software in a variety of ways depending on the specific product and/or use case you are interested in. This includes licensing by the number of CPU sockets on a managed server (or host), as well as by the number of VMs, physical servers, workstations, cloud instances and/or users being managed. We can summarize the different options (not all are available, it also depends on the product):

vBackup, Veeam

Using Runecast to check Meltdown and Spectre bug

5 February 2018
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Reading Time: 5 minutesMeltdown and Spectre are critical vulnerabilities existing in several modern CPU: these hardware bugs allow programs to steal data which is currently processed on the computer. Meltdown and Spectre can affect personal computers, mobile devices, server and several cloud services. There isn’t a single simple way to minimize those security risks, because you need to patch different levels of your stack. For a VMware environment, there are some tools to check your status (and also to help you to apply the right patches).

vProducts, vSecurity

Big Switch solution for HCI environments

25 January 2018
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Reading Time: 4 minutesBig Switch Networks announced that Big Cloud Fabric (BCF) now supports a robust ecosystem of the leading hyperconverged (HCI) solutions, including: VMware vSAN, Dell EMC ScaleIO, and Nutanix. Big Switch Networks is a company in the Software Defined Network (SDN) area with a clear declared mission: to bring network innovation to a broader audience, by delivering fit-for-purpose products based on hyperscale networking technologies.

vNetworking, vProducts ,

Vembu BDR Suite v3.9.0

22 January 2018
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Reading Time: 3 minutesVembu is a player in the backup and data protection world, maybe not (yet) well-know, but for sure not new at all and with a complete suite that covers the physical world, the virtual (VMware vSphere and Microsoft Hyper-V) and also some public cloud SaaS solutions. One of their product is the Vembu Backup&DR (BDR) Suite that helps you to backup the virtual and physical machines and aids your business continuity, having VMware, Hyper-V, Physical Windows Servers, Workstations, Linux, and Mac with RTO & RPO<15 minutes and minimal administration effort.

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