ssh-keygen -t rsa -b 4096 -C "your-email@example.com"Code language: JavaScript (javascript)On your local machine (the one you’ll be SSH-ing from), open a terminal and run the above command. Optionally, you can set a passphrase, but if you want it fully passwordless, leave it blank and press Enter.
Now, copy your SSH key to the remote machine (the computer you’re SSH-ing into). This step allows the remote computer to recognize your key and authenticate you automatically.
Run this command (replace username and remote_host with your remote machine’s username and IP address or hostname):
ssh-copy-id username@remote_hostCode language: CSS (css)This will copy your public key (~/.ssh/id_rsa.pub) to the remote machine’s ~/.ssh/authorized_keys file
If ssh-copy-id is not available on your system, you can manually copy the key:
cat ~/.ssh/id_rsa.pub | ssh username@remote_host 'mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys'Code language: JavaScript (javascript)