VPC and subnet

VPC and subnet

VPC

  • Virtual private cloud (VPC) — A virtual network dedicated to your AWS account.
  • Subnet — A range of IP addresses in your VPC.
  • Route table — A set of rules, called routes, that are used to determine where network traffic is directed.
  • Internet gateway — A gateway that you attach to your VPC to enable communication between resources in your VPC and the internet.
  • VPC endpoint — Enables you to privately connect your VPC to supported AWS services and VPC endpoint services powered by PrivateLink without requiring an internet gateway, NAT device, VPN connection, or AWS Direct Connect connection. Instances in your VPC do not require public IP addresses to communicate with resources in the service. Traffic between your VPC and the other service does not leave the Amazon network. For more information, see AWS PrivateLink and VPC endpoints.
  • CIDR block — Classless Inter-Domain Routing. An internet protocol address allocation and route aggregation methodology. For more information, see Classless Inter-Domain Routing in Wikipedia.

Configuring a VPC

Creating a subnet

Creating VPC security group

Introduction to AWS CLI

  • Using the AWS web console: It is a graphical method to connect to various AWS resources, their configuration, modification, etc. It is simple to use and does not require knowledge of scripting
  • AWS Command Line Interface: Usually, the script provides you with the flexibility to manage multiple AWS resources, infrastructures effectively. For example, we can use the script to deploy multiple resources without the need to go through a complete configuration wizard each time

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