Linux ssh免密钥登陆配置

ssh免密钥登陆配置

root 用户无法免密钥登陆
1. 生成密钥（一路回车）

[hzhongkai@#localhost ~]$ ssh-keygen -t rsa

1. 复制公共密钥，更改权限

[hzhongkai@#localhost ~]$ cd .ssh/[hzhongkai@#localhost .ssh]$ cat id_rsa.pub >> authorized_keys[hzhongkai@#localhost .ssh]$ chmod 600 authorized_keys 

1. 将authorized_keys复制到slave节点

[hzhongkai@#localhost .ssh]$ scp authorized_keys hzhongkai@slave2:~/

4.验证

[hzhongkai@#localhost .ssh]$ ssh slave2Last login: Wed Aug 24 10:45:25 2016[hzhongkai@slave2 ~]$