What is a Virtual Private Cloud?

What is a virtual private cloud?

Virtual Private Cloud

A virtual private cloud is a computing environment that exists within a public cloud. In other words, a virtual private cloud comprises logically isolated sections of the public cloud, and like other cloud environments is available on-demand and scalable. Users can access their private, isolated sections via an encrypted VPN channel.

Understanding the difference between Public Cloud, Private Cloud, and Virtual Private Cloud

A public cloud is a cloud environment that is public, multi-tenant, and hyper scalable. It allows computing services to be rented or reserved on-demand and its global resources can be scaled instantly. Microsoft Azure, Google Cloud, and Amazon Web Services are examples.

A private cloud on the other hand is a cloud environment that is private, single-tenant, and runs on a dedicated infrastructure. Private cloud infrastructure may be installed on-premises, on servers of managed private cloud providers, or over an off-site data center. Private cloud infrastructure is not shared with other users.

A virtual private cloud, has the “best of both worlds” approach, thus acting as a bridge between private and public cloud, and offering the benefits of both. It works like a private cloud over a public cloud infrastructure. A VPC isolates and separates one user’s resources from the other, by allocating each user with a private IP subnet. This ensures that customers can access their environment through an encrypted virtual private network (VPN) solutions. Hence, VPCs are more secure than full public solutions but more affordable than private clouds.

Virtual private cloud solutions differ from private cloud since they are hosted on public infrastructure, and are different from public cloud solutions since they offer virtualized private networks.

Benefits of virtual private clouds

VPC’s “best of both worlds” approach offers the following features and benefits:

In comparison to a private cloud, VPC’s have better agility and the ability to deploy cloud resources as per your business need.

Since VPCs are hosted in the public cloud, adding computing resources on demand is easier, making them more scalable than a private cloud.

Public clouds suffer from security issues, but the case is not the same with VPCs. Since VPNs (Virtual Private Network) and encryption procedures are used for cloud access, VPCs are more secure than public cloud solutions.

VPC clouds take up the advantage of the cost-effectiveness of public clouds by saving resources and labor time. Hence, VPCs are more affordable than private cloud solutions even if they offer more security than public clouds.

VPCs allow dynamic allocation of cloud infrastructure resources like virtual servers, networking, and storage, making them more flexible than private cloud solutions.

VPC’s offer better uptime ratios in comparison to private clouds, thus acting as a source of user satisfaction in the “always-on” trend of this era.

Connecting VPC to an on-premises infrastructure or a public cloud is straightforward using a VPN. Hence, VPC also offers faster and easier deployment in comparison to the private cloud.

Private clouds require dedicated IT resources to deal with minor to major issues, leaving them less time to dedicate towards other productive tasks. With VPC, you get reduced costs and fewer demands from your IT team, thus improving their performance and productivity.

How is isolation achieved in virtual private clouds?

As mentioned before, a VPC isolates its infrastructure and computing resources from other computing resources. It uses the following technologies to do so:

Subnets

Subnets are the range of special IP addresses reserved within a network. In other words, subnet IP addresses are private and are not accessible via the public internet like other typical IP addresses.

VLAN

VLAN or virtual local area network is a group of computing devices that are connected but without the use of the internet. In other words, VLAN allows these devices to connect and communicate with each other as if they are made up of a single LAN, but they exist in one or several LAN segments. This is also another form of segmentation or partitioning whereby each segment is separated from the rest by a switch, bridge, or router.

VPN

A virtual private network (VPN) creates a private network over a public network using encryption mechanisms. Though the VPN traffic passes through a public network, the traffic is scrambled and encrypted.

Working

A VPC consists of a dedicated subnet and VLAN that is accessible only by the VPC customer via a VPN connection. Hence, anyone else within the public cloud will not be able to access the VPC’s computing resources. Additionally, data passing in and out of the VPC is not visible to other users of the cloud environment, making it isolated from other cloud users. Hence, the combination of a subnet, VLAN, and VPN helps VPCs achieve isolation.

Parallels RAS helps to distribute your application from your private cloud

Parallels Remote Application Server (RAS) is an easy to use virtualization solution that delivers applications and desktops to any device at any time. It offers flexible deployment options in the cloud to help meet business requirements.

Parallels RAS allows you to deliver continuously available applications, and deploy components on the virtual private cloud effectively. With Parallels RAS, you can securely deliver applications and desktops to any operating system. Its seamless integration with virtual private cloud reduces complex setup and management and ensures that latency issues are limited to the minimum possible. You get all these features in Parallels RAS, at a price lesser than the competition.

Download the free trial of Parallels RAS to create your secure virtual private cloud and deliver applications with ease today! 


References

Wikipedia |  Virtual private cloud

Att | 3 benefits of virtual private clouds

Cloudtweaks | Virtual Private Clouds and How They Compare Vs Public

The Cloud Tutorial | Types of Cloud Computing

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