我只有一台机器,是因为要配置hadoop分布式环境用,需要配置ssh 两个用户: zhangxs, root 首先在切换到zhangxs用户下 执行[ ssh-keygen -t rsa] [[email protected] Desktop]$ ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/home/zhangxs/.ssh/id_rsa): Cre