How To Connect To a SSH Server with Private Key

Here are the simple steps to connect to a SSH server with private key:

• on client machine, generate a pair of private key and public key with this command:
  ssh-keygen -t dsa
  
  it will generate a pair of private and public keys in:
  ${user.home}/.ssh/id_dsa
  ${user.home}/.ssh/id_dsa.pub


• add the public keys (the text in id_dsa.pub) to server's ${user.home}/.ssh/authorized_keys
  create the folder if it's not existed, where ${user.home} is the user name that will be used to ssh to the server.

The advantage to ssh with private key is that we can set a blank password for the private key, therefore we don't have to type it when we want to SSH.