SSH Connection without Password

    ~ ssh-copy-id yoursshusername@yourservername.com
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/c/Users/USER/.ssh/id_ed25519.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
sshyoursshusername@yourservername.com's password: <<---HERE IS YOUR SSH PASSWORD QUESTION ONE TIME -->

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'yoursshusername@yourservername.com'"
and check to make sure that only the key(s) you wanted were added.

end try connect without password

    ~ ssh yoursshusername@yourservername.com
$ ssh yoursshusername@yourservername.com
Last login: Fri Dec 13 20:00:002019 from 11.11.111.111

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####                                                                        ####
####   Achtung: Daten, die Sie au├čerhalb von /www/htdocs/ablegen,  ####
####   werden nicht gesichert und gehen bei einem Serverumzug oder          ####
####   Neuinstallation der SSH-Umgebung verloren!                           ####
####                                                                        ####
####   Attention: data stored outside of /www/htdocs/will not be   ####
####   backed up and will be deleted in case of a new installation or an    ####
####   account transfer.                                                    ####
####                                                                        ####
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yoursshusername@yourservername:/www/htdocs/$