生成一对公私**:
[[email protected] ~]$ ssh-****** -t rsa

连续三个回车
搭建Hadoop配置免密
进入/home/whzy/.ssh:
[[email protected] ~]$ cd ~/.ssh
搭建Hadoop配置免密

复制**文件:
[[email protected] .ssh]$ cat id_rsa.pub >> ~/.ssh/authorized_keys
搭建Hadoop配置免密

修改authorized_keys文件权限:
[[email protected] .ssh]$ chmod 600 authorized_keys
将文件authorized_keys复制到需要被免密的机器上:
[[email protected] .ssh]$ scp -r authorized_keys [email protected]:~/

Are you sure you want to continue connecting (yes/no)?
yes
搭建Hadoop配置免密

在slave上的操作:
[[email protected] ~]$ ssh-****** -t rsa
连续三个回车
把之前复制的免密文件移动到目标位置~/.ssh/
[[email protected] ~]$ mv authorized_keys ~/.ssh/
进入~/.ssh/目录:
cd ~/.ssh/

搭建Hadoop配置免密

修改权限:
[[email protected] .ssh]$ chmod 600 authorized_keys
搭建Hadoop配置免密
最后检查是否免密成功:
在master上验证
[[email protected] .ssh]$ ssh slave

搭建Hadoop配置免密

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