生成ssh密钥对

1. cd .ssh

2. ssh-keygen -t rsa

3.Enter file in which to save the key (/home/python/.ssh/id_rsa):  (回车,确认保存位置)

4. 输入密码

Enter passphrase (empty for no passphrase):
Enter same passphrase again:

5.成功,多出两个文件  id_rsa    id_rsa.pub   一公一私

6.查看公密钥:   cat id_rsa.pub