How to fix "/usr/bin/ssh-copy-id: ERROR: No identities found"

# ssh-copy-id root@192.168.1.11
/usr/bin/ssh-copy-id: ERROR: No identities found

Solution:
You will have to manually define the path of the public key using -i switch as shown below

# ssh-copy-id -i .ssh/id_rsa.pub 192.168.1.11
root@192.168.1.11's password:

Now try logging into the machine, with "ssh '192.168.1.11'", and check in:

  .ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.
That did the trick.
 
In my another article I have shared the steps to configure SSH port forwarding and tunnelling in Linux
 
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