AWS Certified Serucity Spacaility - SCS-C02 Study notes - Part 8

Securing key Pairs for EC2 Instances

• Key pairs can be used for multiple instances

• The instance maintains the public key.

• The customer keeps the private key.

• Keep the private key safe, back it up in multiple places.

• Yes, you can recover an instance if you lose the key: Recovery from lost EC2 PEM file

• Key pairs are designed for use in a single region.

Key deletion

• Deletes the copy of the public key stored by AWS

• This does not delete the public key stored on the clinets.

• Even if the key is deleted, as long as you have the key mare you can still connect!.