You can assign a security group to an instance when you launch the instance. When you add or remove rules, those changes are automatically applied to all instances to which you've assigned the security group. For more information, see .

Connect to your instance with the AWS Systems Manager Session Manager interactive browser-based shell.

Your AWS account automatically has a default security group for the default VPC in each Region. If you don't specify a security group when you launch an instance, the instance is automatically associated with the default security group for the VPC. If you don't want your instances to use the default security group, you can create your own custom security groups and specify them when you launch your instances.

Add an instance store volume to an Amazon EC2 instance at launch and then prepare it for use.

You can describe the key pairs that you stored in Amazon EC2. You can also retrieve the public key material and identify the public key that was specified at launch.

Some Amazon EC2 instances support solid state drives (SSD) to deliver high random I/O performance.

Connect to your instance without requiring a public IPv4 address using EC2 Instance Connect Endpoint.

Use the Amazon EC2 serial console to diagnose and troubleshoot possible issues with your Amazon EC2 Linux and Windows instances.

Learn how Amazon EC2 provides your instances with public and private IP addresses and DNS hostnames.

Learn how the AWS shared responsibility model applies to data protection in Amazon Elastic Compute Cloud.