ssh-copy-id no identities found error

Question

I have few client systems where I need to push the ssh key and login from my server without authentication prompts.

First, on the server, I created ssh key as below whi

Answer 1

Actually issues in one of Ubuntu machine is ssh-keygen command was not run properly. I tried running again and navigated into /home/user1/.ssh and able to see id_rsa and id_rsa.pub keys. then tried command ssh-copy-id and it was working fine.