A virtual private cloud (VPC) is an on-demand configurable pool of shared resources allocated within a public cloud environment, providing a certain level of isolation between the different organizations (denoted as users hereafter) using the resources.
Amazon virtual private cloud lets you provision a logically isolated section of the Amazon Web Service (AWS) cloud where you can launch AWS resources in a virtual network that you define.
Who Needs a VPC?
Organizations that benefit most from VPCs are companies that need a private cloud environment but also want public cloud resources and savings.
Features that a VPC come with
A VPC provides complete control over the size of your network and the ability to deploy and scale resources at any time.
Although a VPC is part of a public cloud, VPCs are logically isolated networks so your data and applications are entirely separate from your provider’s other clients. Access is limited to your resources unless you grant this.
VPCs are cost-effective. You’ll save money on hardware, labor, and other cloud resources. The cloud provider will be responsible for all maintenance and upkeep of all physical servers and software.
A virtual private cloud offers redundancy and fault-tolerant availability zone architectures to decrease downtime and keep applications and workloads available every moment.
Components of a VPC
VPC CIDR Block.
Network Access Control Lists (ACLs)
How Amazon VPC works
Amazon Virtual Private Cloud (Amazon VPC) enables you to launch AWS resources into a virtual network that you've defined. This virtual network closely resembles a traditional network that you'd operate in your own data center, with the benefits of using the scalable infrastructure of AWS.
Benefits of Using a VPC?
Customers want constant uptime, even though it's not always attainable, and they don't have much tolerance for outage that lasts longer than ten minutes. Redundancy and other capabilities needed to achieve expectations of almost 100% uptime are provided by VPC environments.
A VPC will provide you with high security at the instance and subnet levels.
Whether your business is growing or changing, VPCs are flexible enough to move with your business as needed. Cloud infrastructure resources are deployed dynamically, which makes it easy to adapt a VPC to your changing needs.
Because of the elastic nature of public clouds, you only pay for what you use. With a VPC, you won’t need to pay for hardware or software upgrades and you’ll never pay for maintenance.
A virtual private cloud will grow with your business
When moving to the cloud, using a VPC is an affordable way to make sure your network infrastructure will grow with your business over time. It doesn’t make sense for most businesses to invest in private cloud infrastructure when a more affordable alternative a VPC is readily available.