Amazon Virtual Private Cloud (VPC)

Amazon Virtual Private Cloud (Amazon VPC) lets you provision a logically isolated section of the AWS Cloud where you can launch AWS resources in a virtual network that you define. You have complete control over your virtual networking environment, including selection of your own IP address range, creation of subnets, and configuration of route tables and network gateways. You can use both IPv4 and IPv6 in your VPC for secure and easy access to resources and applications. You can easily customize the network configuration for your Amazon VPC. For example, you can create a public-facing subnet for your web servers that has access to the Internet, and place your backend systems such as databases or application servers in a private-facing subnet with no Internet access. You can leverage multiple layers of security, including security groups and network access control lists, to help control access to Amazon EC2 instances in each subnet. Additionally, you can create a Hardware Virtual Private Network (VPN) connection between your corporate data center and your VPC and leverage the AWS Cloud as an extension of your corporate data center. FEATURES MULTIPLE CONNECTIVITY OPTIONS A variety of connectivity options exist for your Amazon VPC. You can connect your VPC to the Internet, to your data center, or other VPCs, based on the AWS resources that you want to expose publicly and those that you want to keep private.

• Connect directly to the Internet (public subnets)– You can launch instances into a publicly accessible subnet where they can send and receive traffic from the Internet.
• Connect to the Internet using Network Address Translation (private subnets) – Private subnets can be used for instances that you do not want to be directly addressable from the Internet. Instances in a private subnet can access the Internet without exposing their private IP address by routing their traffic through a Network Address Translation (NAT) gateway in a public subnet.
• Connect securely to your corporate datacenter– All traffic to and from instances in your VPC can be routed to your corporate datacenter over an industry standard, encrypted IPsec hardware VPN connection.
• Connect privately to other VPCs- Peer VPCs together to share resources across multiple virtual networks owned by your or other AWS accounts.
• Privately connect to AWS Services without using an Internet gateway, NAT or firewall proxy through a VPC Endpoint. Available AWS services include S3, DynamoDB, Kinesis Streams, Service Catalog, EC2 Systems Manager (SSM), Elastic Load Balancing (ELB) API, and Amazon Elastic Compute Cloud (EC2) API.
• Privately connect to SaaS solutions supported by AWS PrivateLink.
• Privately connect your internal services across different accounts and VPCs within your own organizations, significantly simplifying your internal network architecture.

SECURE Amazon VPC provides advanced security features, such as security groups and network access control lists, to enable inbound and outbound filtering at the instance level and subnet level. In addition, you can store data in Amazon S3 and restrict access so that it’s only accessible from instances in your VPC. Optionally, you can also choose to launch Dedicated Instances which run on hardware dedicated to a single customer for additional isolation. SIMPLE You can create a VPC quickly and easily using the AWS Management Console. You can select one of the common network setups that best match your needs and press "Start VPC Wizard." Subnets, IP ranges, route tables, and security groups are automatically created for you so you can concentrate on creating the applications to run in your VPC. ALL THE SCALABILITY AND RELIABILITY OF AWS Amazon VPC provides all of the same benefits as the rest of the AWS platform. You can instantly scale your resources up or down, select Amazon EC2 instances types and sizes that are right for your applications, and pay only for the resources you use - all within Amazon’s proven infrastructure.