yangyichao-mango commented on pull request #3283:
URL: 
https://github.com/apache/incubator-dolphinscheduler/pull/3283#issuecomment-663348278


   When I set the password free login, and I do not set the password in the 
remote server settings, the following error will appear. Do we have to set the 
password when we want to login in the remote server? In a lot of scene,  we 
already set the password free login. Can you add the password free login to the 
sshtask?
   
   
![image](https://user-images.githubusercontent.com/29545877/88361934-55c17700-cdad-11ea-94e5-0077434626cd.png)
   
![image](https://user-images.githubusercontent.com/29545877/88362068-c5cffd00-cdad-11ea-94e8-7dafa038fb32.png)
   
   


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