公開鍵・秘密鍵をたまにしか作成しないのでメモ
# ssh-keygen -t dsa ←DSAがもっとも強力な暗号らしい
Generating public/private dsa key pair.
Enter file in which to save the key (/home/mazn/.ssh/id_dsa):
Enter passphrase (empty for no passphrase): パスワード入力
Enter same passphrase again: パスワード入力
Your identification has been saved in /home/mazn/.ssh/id_dsa.
Your public key has been saved in /home/mazn/.ssh/id_dsa.pub.
The key fingerprint is:
65:86:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx mazn@localhost
これで.sshディレクトリにid_dsaとid_dsa.pubが生成されます。
pubが公開キーです。このキーのペアをリモートのサーバに転送し、リモートサーバ上で
# cat id_dsa.pub >> ~/.ssh/authorized_keys
で登録完了