两台服务器IP如下配置

Linux1: 10.0.0.1   Linux2: 10.0.0.2

Linux1服务器执行如下操作：

#  ssh-keygen -t rsa

# sudo scp .ssh/id_rsa.pub root@10.0.0.2:/root/.ssh/authorized_keys

Linux2服务器执行如下操作：

#  ssh-keygen -t rsa

# sudo scp .ssh/id_rsa.pub root@10.0.0.1:/root/.ssh/authorized_keys