There comes a time when you wake up to find, the virtual machine systems that took so long to build has failed to start up. A perfectly normal emotional response will be going into panic mode about the fate of your precious operating systems.

In the world of computing, an organizational unit (OU) provides the ability to classify objects in directories, or names in a digital certificate hierarchy, typically used to differentiate between objects with the same name (Example: Felicity Doe in OU “Sales” and Felicity Doe in OU “Customer service”). This functionality can be used to parcel out authority to create and manage objects such as giving rights for user-creation to local technicians instead of having to manage all user accounts from a single central group.

The Domain Name System (DNS) is arguably one of the most important components of a computer network and internet infrastructure. DNS unavailability presents all sorts of problems related to finding resources on an internal network as well as external internet resources, acting like a phone book to translate familiar names such as www.google.co.uk to the IP address 8.8.8.8 and vice versa.

Codenamed Viridian and formerly known as Windows Server Virtualization, Microsoft Hyper-V is a native hypervisor which can create virtual machines on x86 and 64-bit systems running Windows operating systems.

What is VLAN?

A virtual Local Area Network can be described as any broadcast domain that is partitioned and isolated at the data link layer (OSI layer 2) of a computer network. Virtual in the context refers to physical network objects altered or recreated using additional programming logic.

The multiple award winning company ESET headquartered in Bratislava, Slovakia was founded in 1992 when Miroslav Trnka and Peter Paško partnered with Rudolf Hrubý. The hugely successful company offers anti-virus and firewall products such as ESET NOD32.