Contents
How to connect to an Amazon AWS instance using SSH?
To connect to your instance using SSH In a terminal window, use the ssh command to connect to the instance. You specify the private key (.pem) file, the user name for your AMI, and the public DNS name for your instance. (IPv6 only) Alternatively, you can connect to the instance using its IPv6 address.
How to connect to an AWS Elastic Compute Cloud instance?
In a terminal window, use the ssh command to connect to the instance. You specify the path and file name of the private key ( .pem ), the user name for your instance, and the public DNS name or IPv6 address for your instance.
What do I need to configure AWS command line interface?
This section explains how to quickly configure basic settings that the AWS Command Line Interface (AWS CLI) uses to interact with AWS. These include your security credentials, the default output format, and the default AWS Region. AWS requires that all incoming requests are cryptographically signed.
How to connect to an Amazon Linux instance?
In a terminal window, use the ssh command to connect to the instance. You specify the private key (.pem) file, the user name for your AMI, and the public DNS name for your instance. For example, if you used Amazon Linux 2 or the Amazon Linux AMI, the user name is ec2-user.
How does EC2 instance connect for SSH access?
When the EC2 Instance Connect feature is enabled on an instance, the SSH daemon (sshd) on that instance is configured with a custom AuthorizedKeysCommand script. This script updates AuthorizedKeysCommand to read SSH public keys from instance metadata during the SSH authentication process, and connects you to the instance.
When do SSH keys expire in Amazon EC2?
The SSH public keys are only available for one-time use for 60 seconds in the instance metadata. To connect to the instance successfully, you must connect using SSH within this time window. Because the keys expire, there is no need to track or manage these keys directly, as you did previously.
How are SSH keys persisted on an instance?
IAM policies and principals remove the need to share and manage SSH keys. Short-lived keys – SSH keys are not persisted on the instance, but are ephemeral in nature. They are only accessible by an instance at the time that an authorized user connects, making it easier to grant or revoke access in real time.