想要ansible正常起作用，一做免密登录，二是在hosts文件当中，指定用户名密码。 ``` ssh-keygen -t rsa -b 2048 -P ” -f /root/.ssh/id\_rsa ``` ``` vim /etc/ansible/hosts [test] 192.168.56.11 ansible_ssh_user="root" ansible_ssh_pass="tuna" ``` ``` [root@localhost ~]# ansible test -m ping 192.168.56.11 | SUCCESS => { "changed": false, "ping": "pong" } ```