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Virtual Private Cloud

02 August 2014 By In Blogs

 Virtual Private Cloud

Abstract

There are new ways that are innovative when it comes to delivery of resources on an infrastructure in a way that is considered secure and isolated. This is the virtual private cloud solutions. Virtual Private Cloud guarantees resources to machines that virtually ran in the private cloud and they ensure that the virtual infrastructure gives a delivery in performance that is optimal. Such resources are central processing unit, IOPS and the capacity of the disks. 

The virtual Private Cloud has virtual machines.  The virtual machines are deployed on VLANs which are dedicated to provide security and isolation for the network. It includes a VPN and firewall appliance which provides a network connection that is secure between the virtual machines that are hosts to virtual private cloud and the office. Virtual Private Cloud has computer blocks that they use in hosting their entire businesses’ IT infrastructure and is inclusive of domain controllers, mail services, desktop hosts and it hosts them in the exact manner in which it would host them in an existing datacenter or office (Crémer et al, 2012).

 

The world is today very competitive and there is need for businesses to have an access to applications and other data that is necessary for communication and to work or function from any location at any given time. In previous days, this is something that has been achieved with the use of mixing remote technologies for desktops and terminal services. These have provided a user experience that has not been unsatisfactory and this is due to performance that is poor and also application support that is limited. Overtime, the technologies that have enabled cloud computing have continued to evolve and even the ways of delivery of requirements have also changed. The Virtual Private Cloud that host servers and desktops solutions provide those who use them with a performance that is high for the desktops and a server environment which supports installation of applications that can be installed on a server or on a standard personal computer and the user experience is identical to the experience that is provided by a local personal computer.

Introduction

A Virtual Private Cloud is a model of cloud computing. This is a model in which a solution for private cloud infrastructure is usually provided and is done within the provider of the Cloud’s infrastructure. This is a service in cloud computing whereby a certain specific public cloud infrastructure portion is isolated to make provision for private use. The Virtual Private Cloud is an infrastructure that is under the management of a vendor dealing with public cloud. The resources however that are allocated to Virtual Private Cloud do not involve any sharing with other customers or clients (Kennedy, 2013).Virtual Private Clouds were specifically introduced for the customers who have an interest in taking advantage of the many benefits that cloud computing offers businesses and companies but they also have certain concerns over some aspects of how the public cloud operates. Some of the concerns that have led to adoption of Virtual Private cloud include privacy, loss of control when it comes to data that is proprietary and security. These are also the needs of the customers that were the basis when designing the Virtual Private Cloud. Most of the available public cloud vendors have designed a Virtual Private Cloud by using part of the infrastructure that is used in designing the public cloud but they have dedicated servers, virtual networks and also storage for the cloud as well as addresses that are private and reserved them for the customers interested in Virtual Private Cloud. Some examples of Virtual Private Clouds are the Google App Engine and the Amazon VPC. The Amazon VPC was officially launched in the year 2009. The Google App Engine was launched just a few months earlier than the Amazon VPC.

How VPC started

VPC developed from a need in the market to tackle certain issues that were of concern to companies and businesses. Firstly, cloud computing is something that started with the public cloud. The provider of this cloud made available the resources in a public platform for either a pay as you use model or a free service. This service would include storage as well as computing and applications. The public cloud was thus the starting point for other clouds such as the VPC to start. The public cloud model was easy to set up and also low cost and there provided no need to worry about the issue of scalability. It was however not tailored to meet the specific needs of companies and this is what led to the evolution and birth of the private cloud and the Virtual Private Cloud was eventually born as a result so as to cater for these specific needs of individual businesses and companies (Crémer et al, 2012). Now it has become a necessity for organizations to incorporate cloud computing in their daily operations and most are opting VPCs based on the benefits they offer.

How VPC Works

The way that VPCs work, is such that a cloud infrastructure that is private is deployed on an infrastructure that includes storage, networking, computing servers in its physical state. This cloud then will incorporate management technologies as well as virtualization technologies which play the role of abstracting the physical infrastructure and that will then present these to the layer of application that is the virtual storage, virtual servers for computing and virtual networking.  The way they work, they have an advantage that is that the applications do not know what infrastructure they are running on even when they are not running on the physical infrastructure but on the virtual infrastructure and for this reason, companies have to change their IT processes or their applications that have to run in a data center that is physical.

Services

The VPCs provide services that are different and that there are different technical mechanisms in place to provide these services. These services vary in a very considerable way and it can be hard to define exactly what these services are and constitutes. These services are placed in categories based on their features that they offer to the customers. Some of the traits that will characterize VPCs include for instance the fence ring that is used by organizations solely and also network security levels that are high. VPCs offer services that draw their resources from a physical computer pool that is distinct and that is either hosted externally or internally and can also be accessed across lines that are privately leased or secured connections that have been encrypted through networks that are public.

VPC vs. Public cloud

The public cloud and the virtual private cloud are two different clouds. The public cloud has characteristics such as a resource in IT that is delivered through the internet by use of a methodology that is has been standardized. This method is also of self-service and a pay as you use service. The public cloud has been designed such that it provides resources virtually at its own will. The cloud is very highly standardized and allows customization that is limited and its resources can be shared massively or even in some instances oversubscribed. On the other hand virtual private clouds offers compute resources that are scalable and they are similar to the public cloud but they are more controlled including their environment. The providers of VPCs can flexibly customize solutions that will meet such things as the performance and security needs of the cloud. They also have the capability to identify the place where clients data is stored and this allows for them to deliver to the client more privacy and security for their data. There are three crucial comparisons between the two clouds and they are the control comparison, the security comparison and the availability comparison (Kennedy, 2013). When we look at control, the public clouds provider users with a control over the computing resources volume that is direct and the VPC gives the user more control over the technological performance. The control for VPCs is not limited. With the security comparison, just like other utilities that are public, public clouds have ease of access for the public and even with security controls being in place, it is not easy to have control over the risk that masses pause on the public cloud. VPCs security is more mainly because the resources computing are separated logically. There is security that is tighter and that can be easily controlled because it is individual. With the availability comparison, the public cloud clients have a similar pool of resources to compete for and with competition there are many things that could go wrong. The VPCs on the other hand are highly segmented and they give protection to each individual and the private individuals have access to their cloud at their convenience with no stiff competition.


VPC Benefits and Cons

The Virtual Private Cloud has both benefits as well as cons. Some of its benefits include; it offers a higher security level and also regulatory compliance than most implementations of Public Cloud, they provide a better level of performance due to the virtual servers which do not need to share buses of data or even the processors time in a different platform, with VPC companies have a higher and better level of control over their own data, it is possible to avoid such thing as vendor locks, there is a  service customizing scope that is greater  and that suits the needs of the company or business and it is a data center that is cost –effective and has levels of scalability that are high. Some of the cons of VPCs are the costly initial investment that companies have to make, the cost of maintenance is high, it has a flexibility that is low and VPCs are complicated when it comes to setting them up.

VPC security

Security is very important for any organization and it is something that is considered before a Virtual Private Cloud is selected. During the process of choosing the most right and appropriate platform securing the cloud data requires there to be planning that is substantial. Security is of concern for the security of Virtual Private Cloud and has major concerns. The provider of the Virtual Private Cloud has a responsibility for the security of the network in which the cloud is running and the server’s security is under the responsibility of the administrator of that particular server. It is for this reason that it is essential for a business to choose a provider of Virtual Private Cloud who has staff with skills that are vital and a necessity to secure the data of their business and organization. The Virtual Private Cloud providers should have a security strategy that is comprehensive and that is at par with the standards in the industry for example PCI or other standards that are specifically related to the business operations for example HIPPA. The importance of security cannot be emphasized enough when it comes to Virtual Private Cloud as it is an essential requirement as earlier stated. It will take quite some time for businesses and organizations can start to feel comfortable and even trust the cloud providers based on security as well as the sensitivity of the data that the cloud handles. It is also for security reasons that most companies are likely to leverage Virtual Private Cloud for projects as well as applications that are sensitive or that have requirements that they have to comply with.

Future of VPC

There has been significant processing and display of technology improvements that has led to massive use of such devices as mobile phones, netbooks and tablets. These devices have a range of applications that is useful and is wide. As a consequent measure, users have the preference to have an access to desktops that have been hosted and also having the access to applications from anywhere anytime they need to. This is an approach that is service-led and that will keep evolving to the next stage whereby businesses and organizations do not want the aggravation that is brought about by the maintenance of a server room and also the administration cost and resources. Various providers of Virtual Private Cloud will continue to enhance their product and their services to companies and business as the with the evolution there will be more competition in the market and the businesses can pick and select the services that they feel are best and suitable as well as affordable for their business’s needs.

Conclusion

Virtual Private Cloud has evolved and is taking shape in delivery of its promise and many businesses and organizations are starting to somehow capitalize on the cloud’s benefits. The paradigm of Virtual Private Cloud has had some factors that are constant and that account for it in any given scenario. These factors are for example security, scalability, availability and also transparency in cost. Cloud computing platforms for example the Amazon EC2 usually will provide its customers with resources at costs that are low and also flexible on demand. Even with offerings that exist being useful in providing computation resources that are basic and also resources for storage, they have at times failed to provide network controls and also security controls that many customers would be happy to be provided with. Virtual Private Cloud has a potential to bring change on how businesses are run and how they can manage their IT infrastructure (Crémer et al, 2012). For it to be able to achieve this however, control over resources of the network that is comprehensive as well as security has to be provided for the users. 

 

 

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