Generating public/private rsa key pair.
Enter file in which to save the key (/home/user/.ssh/id_rsa): （エンターキー）
Created directory '/home/user/.ssh'.
Enter passphrase (empty for no passphrase): （パスフレーズは非表示）
Enter same passphrase again: （パスフレーズは非表示）
Your identification has been saved in /home/user/.ssh/id_rsa.
Your public key has been saved in /home/user/.ssh/id_rsa.pub.
The key fingerprint is:
$ ls -l .ssh
-rw-------. 1 user user 1743 11月 18 15:28 2015 id_rsa ←秘密鍵
-rw-r--r--. 1 user user 406 11月 18 15:28 2015 id_rsa.pub ←公開鍵
$ ssh email@example.com
The authenticity of host 'server.example.com
(192.168.0.102)' can't be established.
RSA key fingerprint is
Are you sure you want to continue connecting
(yes/no)? yes ←yesと入力
Warning: Permanently added
'server.example.com,192.168.0.102' (RSA) to the
list of known hosts.
Enter passphrase for key