서버1, Host name : centos1 서버2, Host name : centos2 root@centos1 poc]# ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): enter Enter passphrase (empty for no passphrase): enter Enter same passphrase again: enter Your identification has been saved in /root/.ssh/id_rsa. Your public key has been saved in /root/.ssh/id_rsa.pub. The key..