Amazon VPC is a logically isolated section of the AWS Cloud where you can launch resources in a virtual network that you define. It allows you to control your network environment, including IP addresses, subnets, and security settings.
Key components of Amazon VPC include subnets, route tables, network access control lists (ACLs), security groups, and Virtual Private Gateways (VPGs).
Amazon VPC enables you to create a private and secure network within AWS. You define IP ranges for your VPC, create subnets, and configure network security.
VPC subnets are segments of the VPC's IP address range. They allow you to isolate resources and control access by creating public and private subnets.
You can establish a Virtual Private Network (VPN) connection or use AWS Direct Connect to connect your on-premises network to Amazon VPC.
VPC peering allows you to connect two VPCs together, enabling resources in different VPCs to communicate as if they were on the same network.
A route table defines the rules for routing traffic within a VPC. It determines how traffic is directed between subnets and to external destinations.
Security groups act as virtual firewalls for your instances, controlling inbound and outbound traffic. They can be associated with instances and control their network access.
Network ACLs are stateless filters that control inbound and outbound traffic at the subnet level. They provide an additional layer of security to control traffic flow.
You can create private subnets and configure security groups to allow communication only between instances within the same subnet, enhancing network security.
The default VPC is a pre-configured VPC that is created for your AWS account in each region. It simplifies instance launch but doesn't provide the same level of isolation as custom VPCs.
No, VPC peering is limited to VPCs within the same region. To connect VPCs across regions, you would need to use VPN or AWS Direct Connect.
Amazon VPC allows you to allocate private IP addresses to instances automatically. Public IP addresses can be associated with instances launched in public subnets.
A VPN connection allows you to securely connect your on-premises network to your Amazon VPC using encrypted tunnels over the public internet.
An Internet Gateway enables instances in your VPC to access the internet and allows internet traffic to reach instances in your VPC.
You can design your VPC with subnets across multiple Availability Zones (AZs) to ensure that your resources remain available in the event of an AZ outage.
Amazon VPC provides isolation by allowing you to define and manage your own virtual network environment, including subnets, route tables, and network ACLs.
While you can modify certain attributes of a VPC, such as its IP address range and subnets, some attributes are immutable, like the VPC's CIDR block.
A default route in a route table directs traffic to the Internet Gateway (IGW), allowing instances in public subnets to communicate with the internet.
An Amazon VPC Endpoint enables you to privately connect your VPC to supported AWS services and VPC endpoint services without needing an internet gateway or VPN connection.