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How Virtual Private Cloud Works?

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By Author: Anu Walia
Total Articles: 21
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A VPC (virtual private cloud) is a virtual data center within the cloud. You have got full control over your virtual networking environment, including a variety of your own private IP address set, development of subnets, and configuration of route tables and network gateways.

The good thing about VPC is that it helps in aspects of cloud computing like privacy, security, and preventing loss of proprietary data.

Let's take a look at a few fundamentals that play role in VPS working

Subnets: A subnet may be thought of as dividing an oversized network into smaller networks. This is often done because the upkeep of smaller networks is less complicated and it also provides security to the network from other networks.

2. Route Tables: A routing table contains a collection of rules called routes which determine where traffic has got to be directed. You’ll have multiple route tables during a VPC.

3. Internet Gateways (IGW): It’s a mix of hardware and software that has your private networks with a route to the globe outside. An IGW may be a horizontally scaled, redundant, and highly available VPC component that permits communication between instances and also the internet. Only 1 IGW may be attached to a VPC at a time.

4. Network Address Translation (NAT): Since the subnet is private, the IP addresses assigned to the instances can't be utilized in public. NAT maps the private IP addresses to the general public address on the resolution. You’ll be able to associate an Elastic IP address with an instance or network interface for any VPC in your account.

5. Security groups: Security groups are a collection of firewall rules that controls the traffic. The destination is usually the instance on which the service security group is running. You’ll be able to have one security group related to multiple instances.

6. Customer Gateway: A customer gateway is that the anchor on your side of that connection. It will be a physical or software appliance.

7. Virtual Private Gateway: A virtual private gateway is that the VPN concentrator on the other side of the VPN connection. You create a virtual private gateway and fasten it to the VPC from which you wish to form the VPN connection.

8. VPN stands for ‘virtual private networking’, which may be a popular internet security method that was originally designed for big organizations where employees needed to attach to a specific.

9. VPC Peering: A VPC peering connection allows you to route traffic between two VPC’s using IPv4 or IPv6 private addresses. Instances in either VPC can communicate with one another as if they're within the identical network. A VPC peering connection helps you to facilitate the transfer of knowledge.

10. Network Access Control Lists (NACL): Your VPC's optional security layer that serves as a firewall for traffic control in and out of 1 or more subnets.

VPC network provides the following:
Google Cloud VPC gives Connectivity including Google Kubernetes Engine (GKE) clusters, App Engine versatile environment instances, and other Google Cloud products based on Compute Engine VMs for your Compute Engine virtual machine This in order provides native Internal TCP / UDP Load Balancing and Internal HTTP(S) Load Balancing proxy systems. Distributes traffic to back ends from external Google Cloud load balancers and also provide Private Virtual Cloud.

A virtual private cloud (VPC) is an on-demand configurable pool of pooled computing resources allocated to a public cloud system, providing a certain degree of differentiation between the resources used (hereinafter referred to as users) by the various organizations. Except that it is virtualized inside Google Cloud, you can think of a VPC network the same way you'd think of a physical network. A VPC network is a global resource consisting of a list of data center regional virtual sub-networks (sub-networks), all linked by a global wide-area network. Inside Google Cloud VPC networks are logically separated from each other.

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