create a rsa key code example
Example: how to generate my RSA key pair
myLocalHost% ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key(/home/johndoe/.ssh/id_rsa):
myLocalHost% ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key(/home/johndoe/.ssh/id_rsa):