ssh-keygen -t rsa cd .ssh/ cp id_rsa.pub authorized_keys vi authorized_keys 添加别的节点pub。
SCP命令安装 yum install openssh-clients
复制文件到别的节点 scp authorized_keys root@node1:~/.ssh/ scp authorized_keys root@node2:~/.ssh/ chmod 700 ~/ chmod 600 ~/.ssh/authorized_keys
ssh node1 ssh node2 ssh node3
