Linux攻略 让SSH不再输入密码的实用技巧
在复制/移动文件从一台机器到另一台机器时会用到scp，因为它比较安全。但如果每次都要输入密码，就比较烦，尤其是在script里。不过，ssh有另一种用密钥对来验证的方式。下面写出我生成密匙对的过程，供大家参考。
第一步：生成密匙对，我用的是rsa的密钥。使用命令 "ssh-keygen -t rsa"
[user1@rh user1]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/user1/.ssh/id_rsa):
Created directory '/home/user1/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/user1/.ssh/id_rsa.
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2016-02-20
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