外部认证 meaning in English

external authentication

If you chose external authentication source in the previous step , you can get by without additional users
如果在上一步您选择的是外部认证源，那么不需要有另外的用户就可以继续进行。
If you are using an external authentication system , such as the tivoli access manager , select local for now and adjust the configuration later
如果正在使用外部认证系统，比如tivoli access manager ，那么现在要先选择local ，稍后再进行调整。