Introduction To AWS Virtual Private Cloud: "Benefits, Components And How To Set Up A VPC Account".

Overview

Amazon Virtual Private Cloud (VPC) is a web service that allows provisioning a logically isolated network section of the AWS cloud where users can launch AWS resources in the virtual network and no one can assess a user's VPC without the user's permission.

It provides all the benefits of the traditional network that a user has in their private cloud. It gives a user absolute control over their virtual network.  

Amazon Web Service~Virtual Private Cloud: "Amazon VPC or AWS VPC" for short.

Amazon VPC is a web service under the networking and content delivery services offered by Amazon Web Service (AWS) that enables users to launch AWS resources such as Amazon Elastic Compute Cloud (EC2) instances in the virtual network within their control.

Amazon VPC enables users to create a private network in the cloud accessible only to them. Amazon VPC gives users access to create a virtual network within the AWS cloud which gives them complete control over their virtual networking environment, including their IP address, configuration of route tables and network gateways, and creation of subnets. A subnet is a range of IP addresses in a user's VPC.

One essential importance of Amazon VPC is that it lets users’ provision logical isolation in the AWS cloud from other virtual networks. VPC isolation supplies a high level of security and this is crucial for organizations that require secure connections to their computing resources.

Types Of VPC

●Default VPC: A default VPC is a virtual network that is automatically created in the user's AWS account, when an EC2 resource is launched for the first time.

A default VPC includes internet access by default, as well as an internet gateway and public subnet with corresponding route tables.

A default VPC is assigned to a new instance that is launched without a subnet allocated to it.

●Non default VPC: A non-default VPC is a virtual network that is not created automatically when an EC2 resource is launched.

In a non-default VPC, users must create their own VPC. Non-default is also called customer VPC. The user/customer manually configures a VPC in a non-default VPC.

Public IP addresses are not assigned in a non-default VPC unlike the default VPC.

How To Create a VPC account in AWS

AWS provides vast documentation and resources to help users create and manage their VPC account.

Firstly, you have to create an AWS account if you don't have any. Sign in to your AWS account, proceed to the Amazon VPC console

Open the Amazon VPC console at https://console.aws.amazon.com/vpc.  

·Click on the Create VPC button to begin with the procedure of creating your VPC account

·Choose a VPC with a single public subnet and click on the select option

·Provide a name for your VPC and a CIDR (Classless Inter-Domain Routing) block. The CIDR block serves as the IP address range that your VPC will utilize. Choose a range that is best suitable for you.

·Choose an availability zone and select the tenancy category for your VPC.

·Finally, click the Create button to create and enable your VPC.

Once this action is taken, you can add a subnet, IP address and set up security groups to access your VPC resources. To verify actions, select your VPCs, you'd see what you just created.

  Components Of AWS VPC

●Route Table: In AWS Virtual Private Cloud, route tables are the set of rules that are used to specify the destination (IP address) and target (where you want to send the traffic to). The target can be an Internet gateway, NAT gateway, Virtual private gateway, VPC peering connection, etc.  

●Subnet:  A subnet is a range of IP addresses in a user's VPC, it shares a common address in a portion of the network. There are two types of subnets, Private and public subnets. Private Subnet where resources are not exposed to the outside world and Public Subnet where resources are exposed to the internet through Internet Gateway.  

●VPC Peering: A VPC peering connection allows you to route traffic between two Virtual Private Clouds using IPv4 or IPv6 private addresses. A VPC peering connection helps you to facilitate the transfer of data. You can create a VPC peering connection between your own VPCs, or with a VPC in another AWS account. 

●Security Groups: Security groups are a set of firewall rules that controls the traffic for your instance. You can have a single security group connected with multiple instances.

●NAT Gateway: Network Address Translation (NAT) Gateway is used so that an instance in a private subnet can connect to services outside your VPC to update the routing table of the private subnet such that it sends traffic to the NAT gateway. It resides inside the public subnet of an Availability Zone. While creating a NAT Gateway, you must attach an Elastic IP.

●Virtual Private Gateway: A virtual private gateway is the VPN concentrator on the AWS part of the VPN connection. You create a virtual private gateway and attach it to the VPC from which you want to create the VPN connection.

●Network Access Control Lists (NACL): NACL is an optional layer of security for your VPC that acts as a firewall for controlling traffic in and out of one or more subnets. The default network ACL is configured to allow all traffic to flow in and out of the subnets to which it is associated.

●Customer Gateway: Customer gateway is a physical appliance that you own and operate in your on-premises network, it is a software application found on the customer's side of the VPN connection. An Amazon VPC VPN connection links your data center (or network) to your Amazon VPC. It can be a physical or software appliance.

●Elastic IP: An elastic IP address is a static public IP address that can be linked with an instance in a particular region, it never changes. An elastic IP is reserved for your AWS account and it's yours until you terminate it, you have the ability to access your instance over the internet. It is designed for dynamic cloud computing.

●Network Interface: Network Interface is a point of connection between a public and a private network. Every instance has a default network interface, called the primary network interface. Network traffic is automatically shifted to the new instance if you move it from one instance to the other.

●VPC Endpoints: VPC endpoints allow you to privately connect between your AWS VPC and other AWS services without using the internet. It allows communication between instances in an AWS VPC without imposing availability risk on network traffic. Gateway Endpoints firewalls are rules that control the traffic for your instance. VPC endpoint devices are scaled, redundant, and highly available VPC components.

Benefits Of VPC

AWS VPC comes with many benefits and characteristics to secure its users resources in their own virtual network in the cloud.  

●Easy Integration: Amazon VPC enables users to connect to their on-premises infrastructure using a VPN connection, this is important for businesses that need to integrate their AWS resources with their existing infrastructure.

●Security: AWS VPC provides high security for its users by setting up security groups that helps to control traffic that is allowed to flow to and fro the EC2 instances. Service providers ensures that users accounts are secured.

In AWS VPC, only authenticated users have access to the Information available, VPC enables users to monitor their network using Amazon Cloud Watch, Users use Amazon VPC flow log to capture and analyze network traffic.

●Scalability: AWS VPC allows users to launch AWS resources into a virtual network that they've defined, users can scale their resources in AWS VPC in the level of reliability and security. VPC virtual network closely resembles a traditional network that users operate in their data center making it scalable for them to access in the cloud.

●Environmentally Friendly: In a VPC, there is less consumption of material resources since users don't have a need for local dedicated hardware, A single-tenant hardware option is available to run in the EC2 instance.

Organizations are conscious of the measures they need to take to become more sustainable, this service offers a high degree of customization, security, and control making. It is a crucial tool for businesses that require secure and scalable computing resources.

By migrating your services to the cloud, you don’t have to worry about software management and upgrades.

Conclusion

Amazon VPC is a powerful service that provides users with the ability to create a virtual network within the AWS infrastructure. In this article, we have covered what AWS VPC is, a guide on how to create a VPC account, its components, and its benefits. By following the steps outlined above, you would have successfully gained a solid knowledge of what AWS VPC is all about. VPC can help organizations save time, resources, and money while improving their reliability, scalability, and security features without needing additional infrastructure, and its easy integration is encouraging. In all, it offers organizations a high degree of customization.

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