Can I use other users to login to SFS server?

Hi all SFS user.

 

Right now, I can login to SFS server using 'root' user.

 

Like """ sfskey login root@IP """ 

 

But I want to ask : Is there any way to login to server using other
users?

 

When I typed like this : sfskey login kmcheon@IP

I have error message. like

 

sfskey: fatal: Server aborted SRP: perhaps no user record found

 

Thank you.