ssh [オプション] [ユーザ名@]ホスト名
$ ssh ycos@localhost The authenticity of host 'localhost (127.0.0.1)' can't be established. RSA1 key fingerprint is d8:f0:31:b7:ff:24:c1:2c:ef:a8:77:e0:5e:98:b2:3c. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'localhost' (RSA1) to the list of known hosts. ycos@localhost's password: Last login: Sun Sep 30 20:25:09 2007 from aa.bb.net