Addprocs() error, add remote machine

question

#1

I have several machines in the LAN, and run the addprocs() on one machine to add cores from another remote machine. I do not know how to set the user password in addprocs(). The error is as follows.
Can anyone give me some suggestion? Thanks!

The system is information is as follows
捕获


#2

Solved by creating public key file using SSH.