1.每个节点生成密钥(ssh-keygen)
2.设置免密(三台机子都要设置)
ssh-copy-id root@192.168.100.1
ssh-copy-id root@192.168.100.2
ssh-copy-id root@192.168.100.3

1.每个节点生成密钥(ssh-keygen)
2.设置免密(三台机子都要设置)
ssh-copy-id root@192.168.100.1
ssh-copy-id root@192.168.100.2
ssh-copy-id root@192.168.100.3