ssh autologin

http://www.thegeekstuff.com/2008/11/3-steps-to-perform-ssh-login-without-password-using-ssh-keygen-ssh-copy-id/

1. 아래 실행후, 입력창에 모두 엔터 ( default 값 및 암호없이 키 생성)

$ ssh-keygen

2. remote 장비에 pub key 복사

$  ssh-copy-id -i ~/.ssh/id_rsa.pub id@remote-host