Notes
- The private key is deleted as you downloaded it, there is no way of recovering the key
- Deleting a key pair from AWS won’t delete in instances that are created with it, its just you won’t be able to create new instances with it
- If an AMI is created with a key pair, but if you try to launch with a new ami, you would have two key pairs at
~/.ssh/authorized_keys
Compromised Key pairs
- Use SSM Run Command to remove the existing key pairs within the instances and add the new public key
- Use EC2 Serial Port to manually edit the key files
- EBS Volume Swap - Create a new instance with a new ec2 instances, attach the EBS root volume to it