1. Setting up secure access to a new cloud VPS
Cloud EngineerBackground
A cloud engineer needs to configure SSH access for a newly deployed Ubuntu server on a public cloud provider.
Problem
They need a secure, modern SSH key pair with an identifying comment to append to the server's authorized keys.
How to use
Select the Ed25519 algorithm, enter 'admin@production-vps' in the comment field, leave the passphrase blank for automated access, and generate the keys.
Algorithm: Ed25519, Comment: admin@production-vpsOutcome
The tool outputs an Ed25519 public key ready for ~/.ssh/authorized_keys, a SHA256 fingerprint, and an unencrypted PKCS#8 PEM private key.