Most EC2 instances are not intended to be publicly accessible, being assigned private IP addresses valid only within a specific virtual private cloud. However, sometimes an EC2 instance needs to be accessible to the public, like a web front end that needs to be accessible via the Internet. AWS makes this possible through the use of elastic IP addresses, and here Brien Posey shows you how to do
Within VPC, any number of instances can use a single public IP from either pool for their outbound Internet access, by binding the IP address to a "NAT instance" (technically Port Address Translation, a subset of NAT), which is an EC2 instance that serves as the default route toward the Internet for instances with only a private IP. How to Create and SSH Connect to AWS EC2 Instance Jun 16, 2020 AWS Developer Forums: Not able to ping EC2 instance to Dec 14, 2017 Creating and Validating Connectivity for Amazon EC2 Review the VPC configuration and understand the components required to provision EC2 instances. Review the VPC configuration to identify what makes an instance public vs. private. Create an Amazon EC2 instance and a security group in the public subnet, and validate connectivity using SSH.
The private DNS name of the specified instance. For example: ip-10-24-34-0.ec2.internal. PrivateIp. The private IP address of the specified instance. For example: 10.24.34.0. PublicDnsName. The public DNS name of the specified instance. For example: ec2-107-20-50-45.compute-1.amazonaws.com. PublicIp. The public IP address of the specified instance.
How to set up a custom domain for your EC2 instance The default way to access EC2 instances is by typing its IP address (192.168.0.1) in a browser. This is great for testing, but when going public with your blog or portfolio website, it makes more sense to have a domain name such as "example.com" instead. Using Terraform to Create an EC2 Instance Within a Public Jan 18, 2019
Connect a Public-Facing Load Balancer to EC2 Instances
Amazon EC2 public IP Address - Super User