问题背景 当设置好ansible的hosts后,尝试用ansible去连接host里设置的主机。 我使用的是162主机去连接163主机: 如果你之前从来没有连接过163主机,执行后会报错 [root@itlaoxin162 ~]# ansible -i /etc/ansible/hosts web-servers -m ping [WARNING]: Invalid characters were found in group names but not replaced, use -vvvv to see details 192.168.1.163 | FAILED! => { </