On your local computer, enter this command into the terminal
ssh-keygen
cat ~/.ssh/id_rsa.pub (for manually copy and paste ssh key to server)
How change or remove the passphrase,
ssh-keygen -p
ssh-keygen
cat ~/.ssh/id_rsa.pub (for manually copy and paste ssh key to server)
How change or remove the passphrase,
ssh-keygen -p