The Virtualization Practice

Author Archive for Edward Haletky

Edward Haletky
Edward HaletkyEdward L. Haletky, aka Texiwill, is the author of VMware vSphere(TM) and Virtual Infrastructure Security: Securing the Virtual Environment as well as VMware ESX and ESXi in the Enterprise: Planning Deployment of Virtualization Servers, 2nd Edition. Edward owns AstroArch Consulting, Inc., providing virtualization, security, network consulting and development and The Virtualization Practice where he is also an Analyst. Edward is the Moderator and Host of the Virtualization Security Podcast as well as a guru and moderator for the VMware Communities Forums, providing answers to security and configuration questions. Edward is working on new books on Virtualization. [All Papers/Publications...]

DesktopVirtualization

There was recently a rather heated twitter discussion between @Guisebule, @VirtualTal, and @Texiwill (myself) about using virtual desktops as a part of cyber defense. While this could be true, there is a need to ensure you know where your virtual desktop(s) start and end, not only within the network, but your applications in use. In addition, it is very important to fully understand the scope of a virtual desktop architecture as well as use.

DesktopVirtualization

Data Protection and patch management of virtual desktops, while not a sexy topic, is one that should happen on a regular basis within any organization implementing or working to implement virtual desktops. Recently, we have been testing virtual desktop software and there is a huge difference between patching and protecting data in a small number of instances and 1000s of instances. There are scale considerations as well as ease of use for file level and system recovery as well as issues with patching virtual desktops (not to mention other security issues).

VirtualizationSecurity

There is a dilemma for all tenants of a public or private cloud: Scope. For the tenant, they want everything to be in scope. For the Cloud Service Provider (CSP) they want to limit scope to the bare minimum. What does it mean for a Cloud to be ‘PCI Compliant’ and why is this a requirement for some tenants. The real issue, is what is in scope for PCI-DSS while your data is in the cloud and how can you as the tenant meet those requirements.

Virtustream100x30

On the 4/4 Virtualization Security Podcast, Pete Nicoletti, the chief information security officer for Virtustream, joined us to discuss how VirtuStream does cloud security. VirtuStream runs some of, if not the largest SAP installations in the cloud for very large enterprises around the world. The key to VirtuStream is that they are an Enterprise Cloud that looks at everything from the Enterprise perspective, whether that is billing or security. For security, they have implemented many changes required by their customers and allowed the end-enterprise to dial that security to 11 if necessary. But what does VirtuStream do that is different from all others?

CloudComputing

There have been a spate of press releases and news in and around the industry over the last few weeks that bear further consideration. They could actually solve some of your current cloud and virtual environment issues while opening new doors for future expansion. As an architect and analyst I find these technology very interesting for their possible impact of the future of virtual and cloud environment not to mention data center designs.

DataCenterVirtualization

One sure way to improve performance is to cache the non-dynamic data of any application. We did this to improve the overall performance of The Virtualization Practice website. However, there are many places within the stack to improve overall performance by caching, and this got me to thinking of all the different types. At the last Austin VMUG, there were at least three vendors selling caching solutions that were designed to improve overall performance by as little as 2x to upwards of 50x improvements. That is quite a lot of improvement in application performance. Where do all these caching products fit into the stack?

ITasaService

The software defined data center has the potential to expand the control plane well outside of anyone’s control by the simple fact that we do not yet have a unified control mechanism for disparate hardware (networking, storage, and compute), for disparate hypervisors (vSphere, KVM, Xen, Hyper-V), new types of hypervisors (storage and networking), and new ideas at managing SDDC at scale.

VirtualizationSecurity

I asked @MrsYisWhy to join the podcast as she is from the other side of the world from virtualization and cloud security folks and has quite a different view. The rent we saw being sewn up is now a vast divide as we jump feet first into Cloud deployments, virtualization business critical workloads, and generally using more and more virtualization and cloud in our daily lives.

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