场景:服务器B (192.168.1.101)免密登录A(192.168.1.100)服务器 1.登录服务器B ①生产公钥 ssh-keygen -t rsa Enter file in which to save the key (/root/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: 注意:1.在第二步的时候千万不要改名,采坑的教训:2.普通用户(非root),先