cenots6.5免密钥访问

1，生成公钥和密钥

$ ssh-keygen -t rsa

2，复制公钥到目标机器

$ ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.1.21$ ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.1.22$ ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.1.23$ ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.1.24$ ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.1.25$ ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.1.26

输入192.168.1.21的root密码

3，验证登录

$ ssh 192.168.1.21$ ssh 192.168.1.22$ ssh 192.168.1.23$ ssh 192.168.1.24$ ssh 192.168.1.25$ ssh 192.168.1.26