How To Set up SSH Keys on a Linux / Unix System

To set up SSH keys on a Linux or Unix system, follow these steps:

1. Generate a new SSH key pair. You can do this by running the ssh-keygen command. For example:

ssh-keygen -t rsa -b 4096 -C "your_email@example.com"

This will generate a new RSA key pair with a 4096-bit key size. Replace your_email@example.com with your email address. You will be prompted to specify a file to save the key pair in and to enter a passphrase.

2. Copy the public key to the remote host. You can do this using the ssh-copy-id command. For example:

ssh-copy-id user@remote-host

Replace user with your username on the remote host and remote-host with the hostname or IP address of the remote host. You will be prompted to enter your password on the remote host.

3. Test the connection by attempting to SSH into the remote host:

ssh user@remote-host

If the connection is successful, you should be logged in to the remote host without being prompted for a password.

For more information about setting up SSH keys, see the SSH documentation.