ssh生成公钥

[paddingme]

1 本地生成公钥和私钥

这里命名为 test( 生成之后公钥为 test.pub 私钥 test 位于 ~/.ssh 下)

$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/paddingme/.ssh/id_rsa): test
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in test.
Your public key has been saved in test.pub.
The key fingerprint is:

2 发送公钥到远程服务器上

$ ssh-copy-id remoteUser@remoteHost

3 测试是否可以免密登录

$ssh remoteUser@remoteHost

不行的话

登录远程服务器 vim /etc/ssh/sshd_config 找到 以下三行去行首#号

　　RSAAuthentication yes
　　PubkeyAuthentication yes
　　AuthorizedKeysFile .ssh/authorized_keys

保存退出

ok！再测试

[paddingme]

测试