如何在Linux操作系统下生成ssh RSA密钥？
您需要按如下方式使用ssh-keygen命令生成RSA密钥(打开终端并执行以下命令)：

ssh-keygen -t rsa

或者

ssh-keygen

输出示例：

Enter file in which to save the key (/home/Hyman/.ssh/id_rsa): 
Created directory '/home/Hyman/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/Hyman/.ssh/id_rsa.
Your public key has been saved in /home/Hyman/.ssh/id_rsa.pub.
The key fingerprint is:
58:3a:80:a5:df:17:b0:af:4f:90:07:c5:3c:01:50:c2 Hyman@debian

-t type选项指定要创建的密钥的类型。
协议版本2的可能值rsa或dsa。
$HOME/.ssh存储以下两个文件：

• $HOME/.ssh/id_rsa您的RSA私钥
• $HOME/.ssh/id_rsa.pub您的公共RSA密钥

请不要与任何人共享密钥文件。
您可以按照以下步骤将密钥上载到远程服务器：

ssh-copy-id [email protected]

最后，您可以按照以下步骤登录到远程服务器：

ssh [email protected]
scp file.txt [email protected]:~/data2/