One of the most common mistakes when implementing a VDI project is to consider that it is exactly the same as server virtualization. Many companies adopt desktop virtualization after having successfully virtualized their servers, and they make mistakes.To prevent this, you should keep in mind the following points.
The behaviour of the virtual desktops in a datacenter and the profile of the staff who is going to use this technology is completely different from the usual one in a server environment, where the use of the servers is totally procedural. Thus, there are procedural issues regarding server virtualization but in the case of virtual desktops,these platforms are only operated by qualified technical staff.
There are several options that administrators should keep in mind in order to isolate virtual machines inside a Hyper-V virtual switch and thus monitor incoming and outgoing traffic and improve the environment security. Yo can secure the switch:
At the beginning of this week we published an article about the benefits of application virtualization. But, as we already mentioned in that post,there are also some disadvantages. That is why we are going to analyze the main three issues arising from this technology:
• Not all applications can be virtualized, some of them require special installation options or subsequent tuning of the packet so that they function correctly.
• In an application virtualization environment, standard updates do not usually work, as the application must be virtualized with the installed update.
Nicolas Huchet lost his right arm in 2002. This accident encouraged him to investigate about the creation of bionic prosthesis more sophisticated that the financed ones but also more affordable than the ones available in the market, which costs are more than 30.000€. Thus Bionico Hand was born, an association that works to promote the use of Open Source and 3D printing to develop more economic prosthesis.
The Open Source character of this project allows that any developer contributes to improve it from any part of the world. In this way, they want to end with health inequality and turn technology into a vehicle to improve the lives of disabled people no matter their economic status.
With application virtualization, it is possible to run an application that is not installed on the work station from the very same work station. This technology isolates applications from the underlying operating system and other applications in order to achieve greater compatibility and mobility of the applications.
The most significant advantages of application virtualization are:
• Reduction of maintenance needs: there is no need for maintenance, installation or uninstallation of applications in the local PC.
• Availability of the application at any time and in any place. You only need to have network access and a compatible device (PC, terminal, laptop…).
A vulnerability in Xen hypervisor has broken the security around multi-tenant environments. It allows Xen hardware virtual machines (HVM) to access data storaged in other HVM-based machines that are located in the same hardware. This bug, which has been registered as CVE-2014-7188, also allows to crash the host.
ARM systems and paravirtualization servers (PV) of the Open Source hypervisor haven’t been affected. The only vulnerable systems are x86.
Xen Project has published a patch to solve this problem, which affected big companies, such as Amazon or Rackspace, that had to reboot their virtualized servers.
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