配置ssh免密码登入

首先要设置好主机名hostnamectl，然后编辑文件/etc/hosts

192.168.43.9 node0

192.168.43.10 node1

192.168.43.11 node2

 

 

生成密钥对： ssh-keygen -t rsa -P ""

cd .ssh

mv id_rsa.pub authorized_keys

rm -f known_hosts

cd ../

scp -rp .ssh/ node1:/root/

scp -rp .ssh/ node2:/root/