Chap 10 - 01 - Understand Virt Essential Concepts and OS Virt Security - 02_ocred.pdf

Certified Cybersecurity Technician Virtualization and Cloud Computing Exam 212-82 Virtualization Components. Hypervisor / Virtual Machine Monitor = ‘ An application or firmware that enables multiple guest operating systems to share a host's hardware resources T Guest Machine / Virtual Machine 3 ‘s g...

Certified Cybersecurity Technician Virtualization and Cloud Computing Exam 212-82 Virtualization Components. Hypervisor / Virtual Machine Monitor = ‘ An application or firmware that enables multiple guest operating systems to share a host's hardware resources T Guest Machine / Virtual Machine 3 ‘s g Virtual H/W Virtual H/W = 5 E 2| E |5 S os o 5|.3. |2 Apps Apps I— L Independent instance of an operating system created by virtual machine monitor Host Machine / Physical Machine =. Real physical machine that provides computing resources to support virtual machines | I Ty Virtual Machine Monitor (VMM) Management Server =. AT Virtualization platform components used to directly manage the virtual machines rvisor [ I ] l i Physical Machine or Host Management Console = Interface used to access, configure, and manage the virtualization product @ K< Copyright © by EC el All Rights Reserved. Reproductionis Strictly Prohibited Virtualization Components The basic components of virtualization include, Hypervisor/Virtual Machine Monitor: An application or firmware that enables multiple guest operating systems to share a host’s hardware resources. Guest machine/virtual machine: Independent instances of operating systems created by a virtual machine monitor (VMM). With the resources provided, the guest machine works as if it is an actual physical machine. Host/physical machine: Real physical machine which provides computing resources to support guest machines. It is the server component of the virtual machine that supports the guest machine. Management Server: Virtualization platform components used to directly manage the virtual machines and to simplify the administration of resources. Management Console: Component used to access, configure, and use the management interface of the virtualization product Network Components: Components for creating a virtual network to support virtual machines. Firewalls, load balancers, storage, switches, network interface cards, etc. are examples of the components of a virtual network. Virtual Storage: Components for abstracting physical storage in a single storage device. This enables the multiple systems present in the host machine to use the available storage among themselves. Module 10 Page 1246 Certified Cybersecurity Technician Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited. Certified Cybersecurity Technician Virtualization and Cloud Computing Exam 212-82 9!-5 Virtual Machine Virtual Machine Virtual H/W Virtual H/W 0S oS S wv © - k= > Physical Machine or Host Figure 10.3: Components of virtualization Module 10 Page 1247 Certified Cybersecurity Technician Copyright © by EG-Council All Rights Reserved. Reproduction is Strictly Prohibited. Certified Cybersecurity Technician Virtualization and Cloud Computing Exam 212-82 Virtualization Enablers ~ v | o o O Network Virtualization (NV) iy | Copyright © by B il L All Rights Reserved. ReproductionIs Strictly Prohibited. Virtualization Enablers Some examples of technologies by which virtualization can be realized are network virtualization (NV), software-defined network (SDN), and network function virtualization (NFV). These technologies are key enablers responsible for creating virtual environments. They help in creating logical and virtual networks that are decoupled from the underlying network hardware, and these virtual networks can be integrated with virtual environments. The virtual networks can run independently over a physical network in a hypervisor. Software-defined network (SDN) and network functions virtualization (NFV) are responsible for decoupling control and forwarding planes. These technologies combine hardware and software to create a completely software-defined network that enables simpler provisioning and management of network resources and play key role in virtualization. Module 10 Page 1248 Certified Cybersecurity Technician Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited. Certified Cybersecurity Technician Virtualization and Cloud Computing Exam 212-82 Common Virtualization Vendors vmware VMware ESXi (https://www.vmware.com) ClfrX | Wrtualiron | Microsoft | yirtualBox Hyper-V Citrix Hypervisor Virtual Iron (https://www.citrix.com) Microsoft (https://www.oracle.com) nvp er-V VirtualBox s erver (https://www.virtualbox.org) (https://www.microsoft.com) Copyright © by EC-Council All Rights Reserved. Reproduction Is Strictly Prohibited. Common Virtualization Vendors A hypervisor is software that runs and manages virtual machines. Many popular hypervisors, provided by various vendors, exist. They include, = VMware ESXi Source: https://www.vmware.com VMware ESXi effectively partitions hardware to consolidate applications and cut costs with direct access to and control of underlying resources. It installs directly onto a physical server. VMware = ESXi enables, o Consolidation of hardware for higher capacity utilization. o Enhanced performance for a competitive edge. o Streamlining of IT administration through centralized management. o Reduced capital expenditure (CapEx) and operating expense (OpEx). o Minimization of hardware greater efficiency. resources needed to run the hypervisor, resulting in Citrix Hypervisor Source: https://www.citrix.com The Citrix Hypervisor virtualization management platform is optimized for application, desktop, and server virtualization infrastructures. It enables organizations of any vertical or size to transform their business IT computational infrastructures. Module 10 Page 1249 Certified Cybersecurity Technician Copyright © by EG-Council All Rights Reserved. Reproduction is Strictly Prohibited. Certified Cybersecurity Technician Virtualization and Cloud Computing Exam 212-82 Virtual Iron Source: https://www.oracle.com Virtual Iron provides enterprise-class infrastructure management. can: o software With advanced Virtualize enterprise-class workloads for server virtualization and virtual capabilities provided by Virtual Iron, users running on unmodified Windows and Linux operating systems. o Improve the utilization of current systems and reduce power, space, and cooling issues through server consolidation. o Quickly set up development, test, and production environments. o Recover from failures quickly, reliably, and cost-efficiently. o Match resource capacity to workload demands automatically. o Reduce human labor and errors via policy-based automation. Microsoft Hyper-V Server Source: https://www.microsoft.com Hyper-V in Windows Server enables the creation of a virtualized computing environment to create and manage virtual machines. Multiple operating systems can be run on one physical computer and the operating systems can be isolated from each other. VirtualBox Source: https://www.virtualbox.org VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. VirtualBox is a feature-rich, high-performance product for enterprise customers, and is the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL) version 2. Module 10 Page 1250 Certified Cybersecurity Technician Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.