Managing SSH authentication keys for multiple servers is challenging and risky.
A Bash script can be used to streamline, secure, and manage the SSH key pairs.
The SSH config file ( .ssh/config ) contains key parameters to manage various SSH connections.
The config file can be organized and simplified by using include files.
The Bash script generates unique key pairs, creates a config file for each server, and ensures they link back to the main config file.
The script creates a directory to store the SSH key pair and configuration file, sets file permissions, and generates SSH key pairs using ed25519 algorithm, with no passphrase.
A config file for the new login is created and stored in the same directory as the SSH keys.
Linking the server’s address and username into a single alias simplifies connecting to servers.
The script also tests the login and logs out the remote server at the end of the script.
The script enhances SSH key security while making it easier to generate keys and keep them well-organized.