[root@Serverone ~]# ssh-copy-id root@serverone
The authenticity of host 'serverone (159.8.130.254)' can't be established.
ECDSA key fingerprint is 51:be:5b:9a:9d:a3:7c:11:24:77:04:fa:87:0a:2d:ac.
Are you sure you want to continue connecting (yes/no)? yes
/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: WARNING: All keys were skipped because they already exist                                                                                                                                                              on the remote system.